hey im new

[AutostradaVR4]

Originally Posted by Girly VR-4

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?

[boostedchick]

Originally Posted by Girly VR-4

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.

[boostedchick]

Originally Posted by Girly VR-4

BTW, nice to see another girl into these cars

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

[Polygon]

Originally Posted by Girly VR-4

BTW, nice to see another girl into these cars

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.

[Stealthee]

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.

[Twizted_3KGT]

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

[vectorspecialist]

Originally Posted by Stealthee

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.

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

[Girly VR-4]

Originally Posted by Stealthee

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.

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?

[AutostradaVR4]

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.

[Crackhedbob341]

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.

[Stealthee]

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

[Girly VR-4]

Originally Posted by Crackhedbob341

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.

[Crackhedbob341]

Originally Posted by Stealthee

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.

[VR43000GT]

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.

[Girly VR-4]

Originally Posted by SL3000gt

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.