hey im new

hey this is my first time posting in here, ive got a BEAUTIFUL red 3k that i want to mod, what all do you guys think i should do to make it faster? :wink:

read the faq above. how powerful/fast do you want it to be?

FAQ, k got it. oh i dunno im thinking 12s? 11s?

we need year and model.. do some free mods. if it's a vr-4 do a free boost and gut your precats.

if N/A gut your precats and take off the resonator bottle. it sounds better.

Hmm, seeing as your name is "Boosted Chick" I'll go ahead and assume you have a vr4, its a first gen so yes, you should do the free boost mod, I think its in the faq, otherwise check stealth316.com and vr4stealth.com

This will put your boost up to the second gen factory settings and get you up to around 320hp if your car is in decent shape.

Read the staged upgrades in the FAQ and it will answer all your questions about what you will need to do.

Oh, also, welcome to AF

intake (doesnt matter which really), and anything you can do to free up the exhaust flow.

but, to get those kind of numbers, you will eventually need to get some larger turbos...and supporting mods.

and dont forget to post pics in the 'pics of your ride' thread! :biggrin:

welcome to AF

Welcome to the board

Welcome to the boards. 12's are easy to get to for less than a grand, 11's are a few thousand dollars away. As stated, free boost mod, intake, and downpipe/catback. Puts you to high 12's if you have a bit of driving skill. If you still want more you'll have to get some larger turbos.

ha wow thanks for the info, unfortunately im at 5,000 feet so hitting 12s is a bit more of a problem but im thinking low 12s high 11s. free boost mod and catback info is great but my catback is already just under 3 from the factory- hitting 11s on that i dont see a problem with :wink: yeah shes a vr4. right now ive got a boost controller (peaking at 19 pounds on my stock turbos), 450 injectros, super AFC 2, intake... then little stuff MSD wires, copper plugs. it looks like my next step is bigger turbos? any suggestions?

hey this is my first time posting in here :wink:


oHi2u! Why hello there butsekzz! LOLOL. J/k, it's an inside joke.

In all seriousness, welcome to the forums. Post up some of your car pics and stick around.

oHi2u! Why hello there butsekzz! LOLOL. J/k, it's an inside joke.

And Yet we were all thinking that lol, too perfect of timing lmao:grinyes: :eek: :lol:

it looks like my next step is bigger turbos? any suggestions?

TD-05's :grinyes:

always a fan of the EVO's myself, but you dont need to get thaat crazy to hit 11s.

15g's or evo3 16g's.

I've got a 15g/13g combo on my stealth, it's a great street set-up. builds boost quick, and pulls hard to redline, and makes great power. (with that being said, I may upgrade to twin 15g's over the winter haha)

And we've got evo3 16g's on our 98 VR-4... BAD ASS!!! that's the only way to describe that car. HAHA On a VERY basic/conservative tune, at 17psi we're making about 430awhp, with the AEM EMS on a stock block. Daily driven since May up until a few weeks ago when it was put down for the winter... it's reliable too. HAHA that's probably our most modified car, and definitely one of the most reliable cars we own. lol funny how that works sometimes. lol

Those turbos have a little more lag to them, but DAMN if they pull like a mo-fo. Still a very good street set-up, if you want to spend the extra few thousand on that set-up.

BTW, nice to see another girl into these cars :D

Welcome to the boards. Are you seriously running 19psi on stock turbos. They only hold 10psi to redline, so in upper rpms you are definitely blowing alot of hot air and not much else. I didn't catch what year you have, but a datalogger to log knock should be your next mod. I'd be worried about knock already. Fuel pump would be my next one. Also I didn't see a downpipe listed.

At 5,000ft I would think most, if not all TD04 sized turbos aren't gonna be sufficient for anything in the 11s. I don't know how old you are, or what your current situation is, and I definitly don't recommend TD05 turbos for everyone, but if those goals are realistic for you, then that's the route I'd recommend. Hopefully you've had a chance to check out hte FAQ by now. Not many people on this board have gone TD05, a few, but not as many as other boards like 3si, but if you have questions just ask.

I've got a 15g/13g combo on my stealth, it's a great street set-up. builds boost quick, and pulls hard to redline, and makes great power.

hey do you have anymore info on that? boost settings, supporting mods and whatnot, and hom many miles youve been running them?

I ask because i contemplated a similar setup a while back, but thought it would cause problems.

what did it cost you to do the swap?

15g's or evo3 16g's.

I've got a 15g/13g combo on my stealth, it's a great street set-up. builds boost quick, and pulls hard to redline, and makes great power. (with that being said, I may upgrade to twin 15g's over the winter haha).
really? ive heard bad things about that set up, what if any problems have you had on that? im interested to hear what your answer to blinks questions are too...
and no im peaking at 19 pounds definitely not holding it to red line but im pretty sure im holding 13 tho everyone ive talked to says they can only hold 10? weird. OBD1 ftw ive got an HHH datalogger, sorry, forgot to mention earlier. oh yeah the down pipe my boyfriend is taking the 3 inch one off his black 3k thats in the garage and we're going to swap it cuz hes going TDO5 and doesn't need it. fuel pump is a good call tho, thats an asap job for sure. its in my profile but ill list it here its a '91 vr4.

BTW, nice to see another girl into these cars :D

yeah im glad you're on here hahah tell these guys whats up. lol. :grinno: :wink:

BTW, nice to see another girl into these cars :D

Yeah, and I'm not being a horndog when I say that.


Seriously......


True story!

Anyhow, to answer your question I would start by pulling the BCS plug, gutting the pre-cats or get eliminators, good oil pressure gauge, good mechanical boost gauge, boost controller, datalogger, and the usual tune up things with 1 step colder copper plugs. If you want to get serious then I would start with a better exhaust from the turbos back. Then I would get a good FMIC and some bigger turbos. As usual you would want to get a wideband O2 and an EGT gauge as well. Don't forget the fuel system either.

Em you'll have to take me for a ride in the Stealth next time I'm out there. Maybe I can talk Hans into letting me take the 98 for a spin. :D

So what you REALLY want is a mid-10 second VR4 that will run 11's at 5000ft. Yeah you're gonna need to go td-05, or at least that's probably the easiest way to go. 12's you could stay td-04 and get some 15g's or 19T's. Any way you look at it, those 9b's aren't gonna be enough :)

Em you'll have to take me for a ride in the Stealth next time I'm out there. Maybe I can talk Hans into letting me take the 98 for a spin. :D

yea i'm glad gzp is all of 20mins away...ahhh gotta love it. i have yet to still make the trip though, and it's really starting to piss me off, i just don't have time for it.


but yea nice to have a couple of females on here

Em you'll have to take me for a ride in the Stealth next time I'm out there. Maybe I can talk Hans into letting me take the 98 for a spin. :D

Stealth is down for the count at the moment. I'm TRYING to have Hans get it driveable in time for Christmas, my mom hasn't seen it finished yet, and she really wants to. But after that, it's going down for the winter, new paint job (the body guy painted it last winter, but the clear coat dripped because the temp dropped overnight, so he's doing it again for me, free labor, I just have to pay for new paint), and possibly just slapping on another 15g.


I drove it a little with the 13g/15g combo, and it ran nicely. It was previously a 13g/9b car, and drove GREAT! was quick, responsive, and smooth. Then my dad had a few claims on insurance for the car getting keyed, and someone backing into it, so he went with a built bottom end (forged pistons, forged crank), walbro fuel pump, 550cc injectors, upgraded the 9b to a 15g, greddy profec b spec 2 boost controller, s-afc neo (both of which were stolen last week!!!!), he had a stillen (??) downpipe, with a high-flow cat, intake, and that's about it I think?? I'm forgetting a few things, but that's the gist of it. the 15g/13g are a great street set-up, the 13g spools up very quickly, and they both boost hold nicely to redline. a real nice street set-up.

Don't remember what the set-up cost, my dad got the "daddy discount", and it was his car at the time. The car has never been run at full capacity, just puttered around town :) haha


boostedchick - were you talking about the 16g or 15g set-ups?

so...what exactly is the issue with turbo combinations?
they both pressurize the same plenum, so its not like one bank will boost more than the other. Does it have to do with the uneven exhaust pressure between banks?

sorry, not tryin to hijack...but it's something that ive been interested in since before i got my car.

when i was like 13 learning about cars --- being, a while ago, i learned of parallel twin turbo set ups, as well as sequential. i never knew there was a negative to the sequential set up. i just figured the small would spool up for boost, until the larger could boost for the high end RPM range. BUT, lately reading on here and 3si that the backpressure is an issue? i'm curious too.

Our turbos are not sequential though. Sequential is what is found on on inline engine like the Supra.

when i was like 13 learning about cars --- being, a while ago, i learned of parallel twin turbo set ups, as well as sequential. i never knew there was a negative to the sequential set up. i just figured the small would spool up for boost, until the larger could boost for the high end RPM range. BUT, lately reading on here and 3si that the backpressure is an issue? i'm curious too.

If there's too big a difference, The smaller one will spool up first, then the second one, but the first one can only flow so much, so fast. But with turbos that close in size, it's really not a big deal.

Our turbos are not sequential though. Sequential is what is found on on inline engine like the Supra.

is that for a specific reason? or just because that's what the factory wanted?

that's just what i learned, so hearing that different sized turbos is bad makes me wonder why.

Hold on. You have a picture of a SL or base in your signature and it says AWD automatic. How so? The VR4's only came in manuals and did not havew the 16" wheels but instead had the 17" wheels on the first gens.

Hold on. You have a picture of a SL or base in your signature and it says AWD automatic. How so? The VR4's only came in manuals and did not havew the 16" wheels but instead had the 17" wheels on the first gens.

It's a 91 SL. I had it converted to AWD, used a JDM automatic awd trans/t-case set-up, and twin turbo'd it.

I gotta admit i'm almost a little intimidated by these girls that know so much :D It's a rare sight to be seen, but a good one.

It's a 91 SL. I had it converted to AWD, used a JDM automatic awd trans/t-case set-up, and twin turbo'd it.

SR tranny...very nice. how hard was that to come by?

is that for a specific reason? or just because that's what the factory wanted?

that's just what i learned, so hearing that different sized turbos is bad makes me wonder why.

They use that setup since they only have one exhaust manifold. It is a convenient way of doing things since you can have the small turbo spool at lower RPMs and the larger turbo comes in as the smaller one is loosing steam. It is also more cost effective and easier to produce.

I gotta admit i'm almost a little intimidated by these girls that know so much :D It's a rare sight to be seen, but a good one.

Really?

I actually find it attractive regardless if she knows more than I do.

They use that setup since they only have one exhaust manifold. It is a convenient way of doing things since you can have the small turbo spool at lower RPMs and the larger turbo comes in as the smaller one is loosing steam. It is also more cost effective and easier to produce.



Really?

I actually find it attractive regardless if she knows more than I do.

I think any car guy does, that's why I said its a good thing. I also said "almost intimidated" :D I think it's cool when a girl knows more than me.

hahaha yeah were pretty bad ass...jk...but not really.
girly- my bf did a rhd conversion and got his clip from osaka motors in canada, where did you get your jdm trans? also do you work at a shop or something? i kinda missed the daddy discount thing--



crackheadbob- and actually rotary engines only have one exhaust manifold so they're setup sequentially too!

my bf did a rhd conversion and got his clip from osaka motors in canada

...jason?

sorry if im wrong. kinda put 2 n 2 together, since i see you are in Utah as well.

...jason?

sorry if im wrong. kinda put 2 n 2 together, since i see you are in Utah as well.

Yeah, if so, tell him he can buy my wheels! :lol:

hahaha yeah were pretty bad ass...jk...but not really.
girly- my bf did a rhd conversion and got his clip from osaka motors in canada, where did you get your jdm trans? also do you work at a shop or something? i kinda missed the daddy discount thing--



crackheadbob- and actually rotary engines only have one exhaust manifold so they're setup sequentially too!

my boyfriend owns a shop that specializes in 3000GT's and Stealth's, and we work together buying and selling these cars also. So, my dad got a discount :)

I got my transmission from some guy in canada, I got totally ripped off, actually. You can get them on e-bay for about $300 with the transfercase. :shakehead

Yup this is my girl friend.. Looks like she got quite the welcome!

About the whole 13g/15 set up.. or any small/big combo set ups... Here is the problems with them..

Lets say you have 9b with a 15s set up.. sure thing the 9b will spool faster and then the 15g will spool faster.. but once the 9b hits its limmit It is going to be blowing hella hot air and killing the efficiency of the set up.. killing a big point of having bigger turbos.. now if you have that set up and are not running it past the 9bs capability's.. Then why upgrade in the first place..
Basically bigger turbos are good for two things.. the ability to run more boost.. and being way more efficient.. (staying way cooler)....

Does anyone else have thoughts on that?

Jason

um i dont know much about sequential turbo's. but i kinda got wat jason said. is it possible to put an intercooler between the two turbo's? or would that cause an issue somewhere?

one does feed the other right?

and girly how many turbo's u got? my garage currently has about 30 of em...dont anybody ask, it's a long story

No I am talking about on a 3kgt.. one turbo on each bank.. I think you got confused when I said that the 9b would spool the 15g? I mean that the engine under boost (from the 9b) would spool the 15g faster

Lets say you have 9b with a 15s set up.. sure thing the 9b will spool faster and then the 15g will spool faster.. but once the 9b hits its limmit It is going to be blowing hella hot air and killing the efficiency of the set up.. killing a big point of having bigger turbos.. now if you have that set up and are not running it past the 9bs capability's.. Then why upgrade in the first place..
Basically bigger turbos are good for two things.. the ability to run more boost.. and being way more efficient.. (staying way cooler)....


Jason

what i'm seeing is that the 9 would spool the 15. but then at the 9's limit its pushing hot air into the 15...correct? and isnt cooler/cold air better for making power than hot? hence intercoolers...i mean i dont know a hell of a lot about this, but i was just wondering.

what i'm seeing is that the 9 would spool the 15. but then at the 9's limit its pushing hot air into the 15...correct? and isnt cooler/cold air better for making power than hot? hence intercoolers...i mean i dont know a hell of a lot about this, but i was just wondering.


cool air is much better..

and no the 9b does not spool the 15g.. the motor does.. but the motor under boost from the 9b..(more exhuast) spools the 15g faster.. does that make sense?

cool air is much better..

and no the 9b does not spool the 15g.. the motor does.. but the motor under boost from the 9b..(more exhuast) spools the 15g faster.. does that make sense?

Yeah, they would both be pulling air from separate filters, the air charge from both would go into the intercooler, and then the engine. For the 9b to directly spool the 15g the 15g's compressor side would have to be connected directly to the 9b's exhaust side.

On a side note Jason, any word on the wheels?

cool air is much better..

and no the 9b does not spool the 15g.. the motor does.. but the motor under boost from the 9b..(more exhuast) spools the 15g faster.. does that make sense?


oooooo...ok

...jason?

sorry if im wrong. kinda put 2 n 2 together, since i see you are in Utah as well.

ha yep that'd be the one. thats also where i heard bad things about the setup lol pretty good source id say... :wink:

Different sized turbos are more of a problem on the exhaust side than the intake side. Increased pressure on the exhaust side means less flow through the engine on the bank of cylinders with the smaller turbo on it. This will effect the amount of oxygen flowing to each bank.

Basically the side with the smaller turbo will run rich and the side the with bigger turbo will run lean. The closer the exhaust wheels are in size to each other the less the difference will be. 13G's and 15G's are both available in TD04, TD04H and TD04HL exhaust wheels, so the set that Emily is running may be the same turbine wheel, and it may be different.


Also the supra has a sequential twin turbo setup, however they are not different sized turbos. They are both the same turbo, and exhaust is routed to just 1 of them until boost starts to build, then it is routed through both turbos.

Also the supra has a sequential twin turbo setup, however they are not different sized turbos. They are both the same turbo, and exhaust is routed to just 1 of them until boost starts to build, then it is routed through both turbos.

sounds expensive for a repair. the supra is featured in a new toyota add, there's a poster on the wall behind like a carolla or something. there's also an mr2 on the wall too. thought it was cool that toyota is proud of the cars they build...even 6/7yrs after production ended...mitsu doesnt advertise like that. maybe they should with the evo...show the evolution of it...no pun intended

sounds expensive for a repair.

Really? It sounds like a wastegate to me.

Yup this is my girl friend.. Looks like she got quite the welcome!

About the whole 13g/15 set up.. or any small/big combo set ups... Here is the problems with them..

Lets say you have 9b with a 15s set up.. sure thing the 9b will spool faster and then the 15g will spool faster.. but once the 9b hits its limmit It is going to be blowing hella hot air and killing the efficiency of the set up.. killing a big point of having bigger turbos.. now if you have that set up and are not running it past the 9bs capability's.. Then why upgrade in the first place..
Basically bigger turbos are good for two things.. the ability to run more boost.. and being way more efficient.. (staying way cooler)....

Does anyone else have thoughts on that?

Jason

you're right, it's not the most efficient set-up, and twin 15g's would be best. HOWEVER, the 13g and 15g are so close in size, that the downside is negligible. It will put out more power than a twin 13g set-up, but less than a 15g set-up. a 9b and a 15g would not be a smart set-up. 13g/9b wouldn't be so bad, and is what my dad was running originally with his rear turbo started going. Then when he had the car down again for a built engine, etc, he decided to go with a 15g turbo to replace his other 9b... since the price difference is so small between the two turbos.

For the boost my dad would have been running on the car, the size difference wouldn't have mattered at all, and wouldn't have had any negative side-effects.

Really? It sounds like a wastegate to me.

i was thinking that if something happened to the first turbo...something would happen to the second one...and that would likely lead to expensive replacement/repairs

They aren't in-line. My understanding is that they are 2 turbos that bolt to the same manifold and a wastegate style actuator opens to allow exhaust to flow through the 2nd turbo once some boost is created.

They aren't in-line. My understanding is that they are 2 turbos that bolt to the same manifold and a wastegate style actuator opens to allow exhaust to flow through the 2nd turbo once some boost is created.

Yep.

vector- cold air benifits because of density. Cooler air isn't as expanded as hot air.. consider an 18 wheeler tire driving through the desert. The air will expand and pop the tire because of heat --- pressure. Cooler air would make the tire flat. Same thing as the cylinder. More cooler air can be fit inside, more fuel, more power.

what about the evo 3's? how are those compared to the 15's????

what about the evo 3's? how are those compared to the 15's????

quite a bit more expensive for the set-up, great power, more lag.

Awesome set-up if you can afford to fork over the extra money.

what about the evo 3's? how are those compared to the 15's????

They Freakin Rock!

Its the set up I am going with. :D

ok, when i said i thought cooler/cold is is better, i already knew, it was sarcasim. if it was bad y would the honda boys b snatching up cold air intakes like fricken hot cakes? tho they'd do anything for a lil more power...granted they don't usually give anythign back but powertrain loss, if that

ok, when i said i thought cooler/cold is is better, i already knew, it was sarcasim. if it was bad y would the honda boys b snatching up cold air intakes like fricken hot cakes? tho they'd do anything for a lil more power...granted they don't usually give anythign back but powertrain loss, if that

Those, so called, CAI's aren't. Unless there is something separating the filter from the engine bay a more appropriate name is hot air intake. Their only benefit lies in better flow.

They will gain 1-2HP from a standard CAI. Even with a proper one any little Honda engine will only flow enough to gain 5HP at the most. Not anywhere near enough to make up for drivetrain loss. Even large engines with decent flow wouldn't be able to make that up with a simple CIA.