da'ee

Which turbo kit would work best for 220-250whp. I would like to have a flat torque curve and linear hp curve similar to a N/A engine. I would also like to make power till 8k and hold max torque untill 7500rpms. I would be using new rods and pistons, with a compression anywhere from 9.5-10.5. I havent decided on the compression yet.

Charlie Moua

iTrader: (3)

well your question is not really about which kit, but more so about the choice of turbo.

Well my setup goals are very similar.
check signature for threads of why i love small turbos.

I'd opt for T28, GT28, 16G, Apexi IHI p13 bb.

da'ee

I think im going to go with a gt25 turbo. But i still need a turbo kit, I dont have enough knowledges of turbos to build a custom kit.

da'ee

Does anyone sell the apex kit for the b18c's?

Charlie Moua

iTrader: (3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by answerx &raquo;</TD></TR><TR><TD CLASS="quote">Does anyone sell the apex kit for the b18c's? </TD></TR></TABLE>

In japan they do.
Or what you can do is get a Apexi Kit for the D series, sell the manifold to get a Bseries manifold with a t25 flang such as (greddy cast, HKS cast)


What kind of car do you have the b18c in?

da'ee

2001 2dr integra gsr with stock b18c

Charlie Moua

iTrader: (3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by answerx &raquo;</TD></TR><TR><TD CLASS="quote">2001 2dr integra gsr with stock b18c</TD></TR></TABLE>


well in that case. No need for rods or pistons if your looking to get under 300whp.
I'm being very concervative with you. Perhaps the best thing to do is just get a used Greddy Turbo kit that comes with a 18G. If you don't like the powerband of that, sell the 18G and get a t28 which is slightly smaller and a lot less lag per psi.

da'ee

A T28 is smaller than a 18G, i didnt know that. Shows how much of a noob i am in FI. I dont even want to make 250whp, cause traction may or may not be an issue with that much power. A small turbo would def. be nice, but I dont want it to fall flat on its face above 6k. I would like to make very little torque, so I can get traction, and hold peak torque til 7.5k Just like an all motor car. Do you have any dyno graphs of t/gt 25 or 28's.

HiProfile

For a flat torque curve you'll mainly want a elf-style tubular manifold (or a kit with a highflow cast mani), a medium sized turbo (say t3/t04 C.60/E.63 54trim), a 3" dp & exhaust (no cat preferably), higher compression (10:1), and lower psi so the turbo won't have to spool much to reach max pressure.

IIRC a T28 is a T25 tubine with a T3 compressor. Get one from a jdm nissan pulsar gti or a s14 with ball bearings. The T28 will get you want you want, but it'll need a lot of work to get over 300whp if you ever want it. You'll want an high effeciency bar&plate fmic too.

For what you want, you'll want some good tuning too.


Good linear power from down low might have traction probs too, people tend for a fairly big turbo, gets good lower power, but spools to max after you've already hooked up. And makes great topend power. Only prob is that response will suck.

B18Flip

i wouldn't get pistons/rods for that power goal, plenty of people are making more power than that on stock blocks. Spend that $$ else where . For what you're looking for a greddy turbo kit or a custom w/ a t3 super 60 w/ a .63 a/r turbo might meet your needs, or if you have some extra get a gt28rs t3 drop in w/ a .86 a/r.
some sample dyno plots from evans-tuning.com (hope jeff doesn't mind)

Stock GSR, basic turbo kit w/ gt28rs @ 8.5psi (lower psi would get you to your goal)

Stock GSR greddy turbo kit @ 1 bar (14.5psi) ( again lower psi would get you to your goal)


OR a JRSC charger (but this graph is a b16a stock @ 8.5psi)

da'ee

The first two graphs have too much torque form my set up. With that much torque, I will not be able to get traction, at least that is waht I think. Then again those are on higher psi's so if I lower it I may be able to have traction in all rpms. I may look into supercharging.

da'ee

You woudlnt happen to know if that supercharged b16a was getting traction?

Tomakit

Getting traction where? On the street? Track?

da'ee

On the street using 205/50/15 kumho mx's.

B18Flip

no clue how much traction the b16 had but i took a ride in a JRSC'd integra LS @ 10psi and it had pretty much no traction 1st, 2nd gear

EJ1 wilcox

I honestly wouldn't worry too much about traction. You can learn how to stay out of the gas and stay planted... you can always feather the clutch if you need to.

Hell, my d16 looses traction in first and second both if I mash the gas, and I'm only at .5bar. That's on the street with shitty tires though.

I'm not going to try to convince you, but I would go with a larger turbo with more top end if I were you. More fun IMO.

B18Flip

LOL yeah i didn't even think about that....you're gonna have traction issues with a a boosted FWD car
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ1 wilcox &raquo;</TD></TR><TR><TD CLASS="quote">I honestly wouldn't worry too much about traction. You can learn how to stay out of the gas and stay planted... you can always feather the clutch if you need to.

Hell, my d16 looses traction in first and second both if I mash the gas, and I'm only at .5bar. That's on the street with shitty tires though.

I'm not going to try to convince you, but I would go with a larger turbo with more top end if I were you. More fun IMO.
</TD></TR></TABLE>

Charlie Moua

iTrader: (3)

Great info from all of these guys. If you want say 250-270whp in the upper 6,000rpms to 8,200rpms but will not too much torque on the lower end what I would reccomend for you to do is just have 2 boost settings. Set at 5psi and one at 8-9psi.

man that GT28rs dynochart looks bad ***...
I hope my apexi turbo stock gsr can mimic that powerband.

JonnyCoupe

Is the GT28rs dyno a T3 style or T25 turbine.

Looks ideally what i want.

Quad-Damag

A custom kit with a SC50 at 8 psi would hit your goal with ese
blox, lovefab, fullrace, spoolin, bmc, rev hard, drag
manifolds
SC 50
3 inch downpipe
http://www.fast-turbo.com oil feed and return
Tial Wastegate and BOV
custom dump tube
http://www.spoolinperformance.com for intercooler pipe
Johny Race Car 8 inch

Done and done

JonnyCoupe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18Flip &raquo;</TD></TR><TR><TD CLASS="quote">

Stock GSR, basic turbo kit w/ gt28rs @ 8.5psi (lower psi would get you to your goal)

</TD></TR></TABLE>

Is that with the std manifold?

Killa

GT28R,