Best turbo for a B18C
 

I am in the middle of trying to choose the right turbo for my kit, I have a 95' GSR the engine is the stock B18C..I would like to make 8-10 PSI and have to turbo spool around 3000-3500 rpm. hoping for close to 300whp
any help would be great...;D

Do your homework...

If you want some suggestions, check out the T3/T04E 50, 57, and 60 trim turbos. All of those will easily get you your WHP goal.

^^^ exactly. you should be able to achieve 300 whp easily with a turbo b.... especially with those turbos.

If money isn't an issue, a Garrett T3 GT3076R is killer on a B18C. It will make 300 horsepower on pump gas with it's eyes closed. Plus if you ever build the motor, turn up the boost in the future, you will net 400+ horsepower easily.

I'm running a Turbonetics T3/T4 60 trim cold side, .63 hotside. It treats me well, I'm putting 297 whp and it spools fast due to the small exhaust wheel.

I currently have a turbonetics T3/To4B (50 tirm). .48 hot side what do you think.

i say run it if you already got it, no need to wastemoney on something diff if your only lookin for 300whp

Do you think the small .48 hot side will be a problem on the upper rpms?

most likely yes... but it should be ok w/ your whp goal.. also u may go about calling turbonetics and upgrading your exhaust side

is it safe to run 10 psi on stock B18c internals with the t3 gt3076r

Yes and no. Probably not but you might get lucky. ;D

The .48 Turbine may hurt you to an extent as someone else stated, however, it's plenty of turbo to get your feet wet with. Run it. If you already have a well maintained turbo, get a decent intercooler and get to work.

when you say it may hurt me to an extent, what are you refering to? is it worth just waiting and getting a .63 housing?

No run the turbo you have and when time and $$$ permits, sell that turbo and get out of the TO4B range all together.

To clarify my answer, the .48 is NOT going to allow you to make peak power, however the turbo is going to help you make a lot more power so run what you have and then when you are ready dump the TO4B. Swapping to a .63 A/R turbine housing will help, but you will still have a TO4B which will limit the amount of power you are producing overall anyways.

Good ----, right here.

I have the opition to get a .82 hotside, will it help or hurt me?
keep in mind all i want is 300whp, I'm just not sure if the .48 will limit the rpm to soon, or if the .82 will lagg to much. i would be happy if the turbo was fully spooled around 35-3800 rpm.
what are you thoughts?

Same discharge flange as your .48?

If so, just get it and then start with the .48. That way if the .48 chokes the chicken you can just swap it out.

Hell, get it anyway, it's a FWD and a little lag is better than blazing hot tire fire.

My thoughts are... Listen to BoostGear.

What he's saying is, you will get to or close to your WHP goal with what you have and you should spool pretty quick. Going to an .82 will create more lag, which you don't want on a daily driver. I'm assuming that's what it is, since it's not built. He's also saying you won't hit your max potential with a .48, but I think you may want to get "used" to 275+HP before you start looking at more. With that power, you will be smoking 'stangs like weed was just legalized ;) If you don't kill yourself or go broke from tickets in 6 months, then start thinking about a built motor and a bigger turbo. Hope that helps.

And a smaller turbo doesn't "limit" your RPM, it just won't flow the amount you need it to for steadily increasing power. You will still be making 275+HP @ 8000 RPM.

what are you talking about^ how do you know when he is going to make power? do you have some sort of badass fortune telling brain dino?

No, it's called knowledge from experience. I've been tweeking and racing inports for almost 20 years. And in my experience, a T3/4 50 trim should have no problem doing 275HP on a B18. Unless of course, some retarded ---- is done on the build/setup.

BTW, why are you always trolling this forum for a pissing match? Contribute something worthwhile, or STFU.

I have been hesitant to run the turbo as it sits with the .48 housing, I have heard once i reach 5 to 6K rpm it would choke causing it not to pull anymore rpm and run like crap.
is that true? if so I'd like to get a .63 and not have to install then reinstall the turbo.

No, that's not true. At higher RPM's, your enigine will need more CFM than a smaller turbo can provide, so your power will start to trail off. BUT..., you will still be flowing way more than a factory engine under vacuum, and therefore should make more power. If you want to switch to the .63, do it. But I wouldn't say it's NECESSARY to make good power on that motor. Anyone on here running a 14b can attest to that.

Do you feel i will make my goal of 300 whp using the .48 housing @10psi?
from all my research i have found most people try to stay in the 10-12psi range on a stock GSR..any thought on that?

If you don't hit 300, you should be close. There are a lot of factors that could affect that. How many miles on the motor, how hard it has been driven, how good your tune is. I would say stay around 10psi on a stock motor to be safe. Unless you have a different motor to drop in, you don't want to boost a DD too hard. The most important thing will be your tune. Get someone that is good, and spend AT LEAST an hour on the dyno with him to get it where it needs to be. What injectors are you gonna run?

I currently have a set of DSM 450's...I hope they will support 300 whp..

For my experience i think the best choice must be the .63 hotside. On my cars even with a SOHC engine they starts to spools fairy quick around 3k - 3.5k and last a li`l more at higher rpms. I have right now a t3-t04 .63 .60 turbo and pulls really nice on my SOHC.

Thats only my opinion

They weren't designed to support 300 horsepower.

Hoping injectors are good enough = blowing the rings to pieces or smoking a piston.

Oh and for the record, stock DSM 450 injector's are maxed out around 83-85% injector duty cycle, not 100% like everybody thinks. The injectors they run in older F1 cars that cost over $2000 a piece can only hold 93% injector duty cycle for about 25 seconds before they start to skip. Crappy/worn out/mass produced injectors however do not conform to those standards and shouldn't be pushed harder than 85% injector duty cycle because they might not fail, but the will start to fatigue/over heat and skip. When an injector skips about three times at 6000+ rpms, your pistons take the abuse.

But this is homemadeturbo... ;D

UPDATE, I was able to get a .63 housing!!!
for 300-350 whp what injectors do you recomend?

i was saying how would you know the amount of power he would make at 8k rpms. im sure with that tiny .48 housing it would drop off a bit before 8k choking the motor. so why dont you knock off that internet tough guy bullshit and stfu your taliing out of your ass faggot