For the techies! how is this set up

[Rob80]

I recently bought a 94 civic with an b18b in it. the thing has a full exhaust put on it but no cat (I have to put one on) I want to run around 20-25psi with it. I was going to send the block out to be sleaved by golden eagle, crower rods, JE pistons 8.5:1. The turbo kit I'm looking at has a garret GT30 in it, I may drop to the GT25 but not sure yet. I'm not planning on doing head work right away but I was wondering what fuel upgrades I need to handly such boost, and if there is anything else that is an absolute definate to run this safely. Ohh and I was wondering if anyone knows where to get a crank balanced and blueprinted.

Thanks

[PWMAN]

Your going to need 8:1 compression to run that much on pump gas(91-93 octane)
Definitely don't drop to the GT25, thats way too small to run 20 PSI. The GT30 might not be enough to run that either.
Find a good machine shop to balance the crank, usually runs around 200 dollars.
MEGA fuel upgrades for that much boost. If I were you I would not run more than 20 PSI on the street, it's just not reliable. 18 is the known safe limit for the street. You can run 18 with 8.5:1 compression.
And also, are you going to beef up the drivetrain? Expect to spend a lot of money there - LSD, clutch, axles, etc.

[civickiller]

what thats way too high for pump gas, u gotta run at least 100 octane minimum to be safe.

i say check it out and email them, it may not what your looking for but then maybe it is, www.jgenginedynamics.com

[PWMAN]

Originally posted by civickiller
what thats way too high for pump gas, u gotta run at least 100 octane minimum to be safe.

i say check it out and email them, it may not what your looking for but then maybe it is, www.jgenginedynamics.com

Where you talking to me or too Rob80?

[civickiller]

to u on the first part, and rob on the second

[Rob80]

Originally posted by PWMAN
Your going to need 8:1 compression to run that much on pump gas(91-93 octane)
Definitely don't drop to the GT25, thats way too small to run 20 PSI. The GT30 might not be enough to run that either.
Find a good machine shop to balance the crank, usually runs around 200 dollars.
MEGA fuel upgrades for that much boost. If I were you I would not run more than 20 PSI on the street, it's just not reliable. 18 is the known safe limit for the street. You can run 18 with 8.5:1 compression.
And also, are you going to beef up the drivetrain? Expect to spend a lot of money there - LSD, clutch, axles, etc.

They say that the gt25 has obtained 30psi before. www.extremeboost.com I was looking at 550 injecters and a 255lph fuel pump. I'm looking at just a clutch masters stage 4 clutch, no lsd or axels.

Does anyone know a good machine coast in the NY, NJ area?

How come I can't boost over 18psi? I know people in mr2's and supra's that are way over 20psi. I wouldn't run it at that all the time though, I'd use a boost controller like the profec b and run high and low boost.

thanks for all the help.

[PWMAN]

I would get an LSD if I were you, you won't get any traction if you dont - 300 HP in a little car=no traction. And stock axles will break every couple months. You can do what some people do, get some from AutoZone which are warrantied for life and just keep replacing them everytime they break. Buts thats a pain in the ass if you ask me.
If the GT25 will support that much, than get that one - less lag time.
What compression ratio are those Supras and MR2's running? I bet it's in the 7's. Those cars were meant for turbos, so they can handle it no problem. You are modifying a car that was originally N/A, this causes problems in reliability for the street. It's near impossible to build the perfect engine for turbo if the engine was originally N/A, but if it's turbo from the factory you already got the stuff there.
Don't Supra's have an Iron block? Thats waaaaaaay stronger than aluminum and can handle far more boost, even after you change your sleeves to iron - the block is still aluminum.

[Rob80]

What axels do you recomend? My friend has an mr2 1993, he is putting 8.5:1 pistons in and he is going to boost up to like 25 psi. I figured with fuel upgrades and sleeves I could get there. cause Eagle says their sleeves can handle 30psi. Some people say the lsd doesn't do anything for draggin but I believe you and that it does. Is there an lsd for an ls tranny that isnt' 850 dollars, cause all I see is quaife and that's too much.

[PWMAN]

Hah! If it were me I would just do the AutoZone axles, LOL - I like to rip places off that have lifetime warranties. ummm, can't think of any axles offhand, sorry.
Well, just wait and see if that guy is able to run 25 PSI without detonation on pump gas.
The Phantom Grip only costs like 300 dollars, you can get it from JEG's. It's problably a pain to install cuz it goes inside the stock carrier, it just doesn't replace the whole thing. But it still works good.
Most people that Drag use spools, not LSD's.

[edman24]

what you guys have failed to mention is that you will be needing a very good engine management system to control all of this. it is my belief (because ive seen it over and over) that you can run 25psi on the street on pump gas with the fuel upgrades you are getting. BUT you need a very good engine management such as haltec or a motec unit. and those can be very expensive and difficult to tune. they can cost upwards of 1500 bucks just for the unit without tuning. and they are required for running such high boost on pump gas. i would also say go with 8:1. if you get in the 7's its too low. 8 should be fine

[PWMAN]

Originally posted by edman24
what you guys have failed to mention is that you will be needing a very good engine management system to control all of this. it is my belief (because ive seen it over and over) that you can run 25psi on the street on pump gas with the fuel upgrades you are getting. BUT you need a very good engine management such as haltec or a motec unit. and those can be very expensive and difficult to tune. they can cost upwards of 1500 bucks just for the unit without tuning. and they are required for running such high boost on pump gas. i would also say go with 8:1. if you get in the 7's its too low. 8 should be fine

He said he's using Hondata.
And 8:1 is what I sad too for over 20 PSI. Anything under 20, 8.5:1 is OK.

[Rob80]

Originally posted by PWMAN
Hah! If it were me I would just do the AutoZone axles, LOL - I like to rip places off that have lifetime warranties. ummm, can't think of any axles offhand, sorry.
Well, just wait and see if that guy is able to run 25 PSI without detonation on pump gas.
The Phantom Grip only costs like 300 dollars, you can get it from JEG's. It's problably a pain to install cuz it goes inside the stock carrier, it just doesn't replace the whole thing. But it still works good.
Most people that Drag use spools, not LSD's.

I don't think they make the phantom grip for the ls engine, I don't however know anything about spools, what are they? and where can you pick them up?

Yeah I didn't think too much at engine management yet. I was going to depend on my air fuel ratio gauge and an overly upgraded fuel system. I wanted to get the zdyne ecu that is plug and play. I was impressed with what they had to offer but not too many people talk about them.

[Rob80]

Another question. MSD makes the ignition system that retards timing when the boost goes up to prevent detonation. I was reading a big argument about this in another post but how helpful is that for running over 20 psi? That will lower compression ratios and I could run 8.5:1 pistons. But does that rob more power than you gain or is it a waste?

[edman24]

ok well lets say he is using hondata. that is not sufficient for the boost he is running. it is only a piggyback system and is not fully tunable. you need a good setup not just some easy plug and play. did you think running 25 psi would be that easy? and no the msd thing is stupid. it retards and retards your timing just to keep from detonating but this robs your hp considerably. there would be no point in doing that with 25 psi. and no any amount of fuel mods will not make up for the loss in engine management. if i were you, id spend more money on the engine management then on the fuel upgrades. this will allow you to run higher boost then you could with just fuel upgrades.

[PWMAN]

Originally posted by Rob80


I don't think they make the phantom grip for the ls engine, I don't however know anything about spools, what are they? and where can you pick them up?

They do make it for the LS. It's the 902-Gold, it says it fits Acura Integra(Exc 94-99GSR)86-01.
A spool is NOT like a locker or LSD. It just connects the 2 axles together to make them one. It is NOT for the street whatsoever, as it will break around turns.