riceball777

I been collecting parts to turbo my s2000 for some time now. I just finished puting everything together and just got tuned at church automotive testing here in so cal. car made 335whp on 91 octane at 9 psi and made 400whp at 14psi on 111 octane race gas before the stock clutch would not hold any more power. We tryed a 18psi pull but the clutch could not hold the power. On pump at 335whp i'm kind of disopointed. Its kind of slow. Much slower than my evo which mades 400whp on 91 octane. I would think it would be about the same speed since the s2k is so much lighter.


setup

stock 2002 engine with stock headgasket.
Injector dynamic 1000cc incectors with pnp clips
walbro 255 hp pump rewired straight from the battery
AEM series 2 EMS
aem boost gauge
aem serial gauge
aem boost control solinoid
omni 4 bar map sensor
rev hard log t3 turbo manifold
precision ball bearing 50 trim turbo. E compressor cover. t3 .63ar turbing housing
inline pro 3 inch down pipe
custom 3 inch exhaust made with alumized piping. no cat. 3" hks carbon ti muffler and 2 vibrant straight through resonators Used 3" vband clamps and flanges
inline pro oil relocation kit
cheep ebay oil cooler mounted in frount of radiator with custon -10an lines
cheep ebay intercooler. core is 24x12x3 (31" end to end length)
custon 2.5 aluminum intercooler piping routed inline pro style
custon 3" intake pipe with K&N filter
tial 50mm bov
tial 38mm wastegae with 10psi spring.
custon open dump tube

dk=gsr

sorry about the disappointment but dam you bought everything together and still made power. You just need a stronger clutch.

hillssol95

your clutch might be getting worse, or it might just FEEL slower.

boosted94gsr

Why did you only go to 9psi on pump gas?

Get a new clutch and turn the boost up then compare it to ur evo

riceball777

the clutch does not slip on 91 octane. but on race gas it started slipping which is why i has to stop at only 400whp @14psi.

I run 9-10 psi on pump because is with the comprssion is stock (11.1) and 91 octane sucks and my tunner Shawn church recoments to stay at this boost level on 91 octane.

hillssol95

i know but what i was saying is when i was running 7 psi in my civic it pulled harder than 9psi because the clutch would just slip a little, but then i got a stage 3 6 puck and it would lose traction up top in 2nd and 3rd.

riceball777

boost plot added

J. Mills

More on pump gas could have been had safely. Below is one i tuned on pump gas for a customer quite some time ago. No issues where ever had from this setup. The car was traded for an evo i believe

Stock engine
Log manifold.. unknown
Precision 6262
RC 750s
Walbro 255

AND the worst of it all.. It was tuned on Greddy Emanage..which i hate

I believe the Blue graph at 340 was off the wastegate at 9psi
The others were on 16psi




Regardless your car should be fun to drive with a new clutch put in it. I know the one we did above for the customer was. Good luck!

SAXON

that log manifold is holding that back big time, log manifolds and s2k do not mix well together

Chef Andre

iTrader: (1)

This is the first thing I thought when I saw the mod list too. I think a slightly bigger turbo would have did you well too. Nonetheless still nice for a budget setup.

94GSRMR

HMM manifold and bigger turbo..

94GSRMR

and clutch

D-Rob

I'm glad someone chimed in on the manifold selection.

Why anyone wastes time with a log manifold on a Honda engine is beyond me.

hybrdthry911

honestly the log manifold doesnt seem to be a huge factor on this particular car. its holding out pressure and torque all the way to redline. sure it would make more power, but just throw another lb of boost to make up for it. 400whp in an evo is a low 11 second car and with the aggresive evo gearing its just plain faster than a 335whp s2000.

94GSRMR

but im quite sure a turbular manfold would allow a double digit hp gain. Most ppl when Turbocharging a S2000 will throw atleast minimum a GT30R or 35R on.. but thats Most ppl.. why throw in another "COUPLE" pounds of boost when he can make more by upgradng the manifold and make noticeable power at the same boost level? Imquite sure he wllbe upgrading the clutch, because without the clutch both manifold and bigger turbo is useless

riceball777

The problem with tubular manifolds and the s2000 is that there is not a lot of room and lots of time you need to have custom ac lines and you have to relocate the batter and fuse box as well as a lot os wireing and thats something i really dont want to do.

and whats wrong with my precision ball bearing 50 trim turbo. Power seems to hold well to redline. Its pretty popular with evos. evos make 400awhp on pump gas and 500awhpon race gas with the 50 trim all the time.

keep in mine all my car are 100% street cars that are driving 10-20 thousand miles a year.

and yes my evo on pump making 400whp would smoke my s2000

as for the clutch/ i'm probably just going to drive and enjoy the car for a few months the way it is. I'll probabky get a act hdss for it doing the summer, when i get some time to put it in.

turbociv910

that graph looks horrible for a s2000. should be nice and smoothe, whats with the power drop at 6800k?

Veeeeetek

clean setup

riceball777

the dip is vtec at 6600 rpm. From talking to my tuner. He says that with tubular manifolds you can set vtec at 4k rpm but with these log manifold you need to set vtec close to 7krpm or else thereis a dip. He set mine to 6600 and there is still a little dip but he said he sould not want to set it any higher.

kyden

you can't compare evos to honda motors. what works for them doesn't work for us.

wolve

log is crap and you run a tiny turbo, no wonder it's slow.

a f20c with quite large oem cams a log mani and tiny turbo is choking the **** out of it!

the vtec wanting to be at 6500+rpm tell's the tale, that's why evo's don't have a problem with the same setup. their cams,etc. are different.

run a bigger turbo (especially turbine size) and a normal mani and see high 400's on pump!!!

SAXON

this is because you are choking the motor

i had the same problem with a motor/cam setup that i tried a cast manifold on, vtec at 7000 and it was junk powerband, i switched cams (smaller) and all of a sudden a much better power band... if i had the choice i would have switched manifolds but alas they were too expensive for my budget

i mean the power isn't bad, but after a clutch and you wanting more hp the first upgrade should be the manifold

riceball777

A ball bearing 50 trim should be good for 500whp. It's been done countless amounts of time before. How is this turbo no good for my s2000?

Tony the Tiger

Turbo isn't just rated by horsepower. There are many aspects of it in terms of proper sizing. An Evo motor does not rev to 9k RPM, and does not use cams with huge overlap from the factory. The Evo has nowhere near the same VE as an S2000 motor.

S2000 motors are all about efficiency. You need to let it breathe, and the worse thing you can do is run a log manifold and choking it with a 50-trim and a dinky 0.63a/r housing. You can pound the motor with 30 PSI on your S2k, and maybe you will get your 500 WHP out of this turbo if you want to compare it to an Evo and cut your redline to 7000RPM instead of 9000.