CHEETAH_S2K

I'm gonna try this just wondering if anyone has done it and just put the IACV aside and controlled fuel with a VAFC/SFC witht he stock ECU ? I do it allt he time with B-series (GSR/ITR, etc) but gonna be the first with my s2k, lemme know if you've done it and been successful.

I'm gonna run the Jenvey ITBs if that matters - stock s2k injectors and slightly high fuel pressure.

any help would be appreciated

thanks
Greg

foz01

I am just fitting the jenvey kit but i was told you need a custom ecu..

hoping for 255bhp and 175ft/lb

CHEETAH_S2K

The only reason I can see for standalone ECU is to provide similar inj pulsewidth at idle with lower vaccum than a manifold usually provides if using the same injectors. But I could be wrong. I know I;ve done it to GSRs and ITRs and even reprogrammed the maps for OBD1 ecus but no idea on the s2k.

greg

turbo_pwr

I can tell you right now that I couldn't even get the car to start up with the stock ECU.

mxt_77

What's your ETA for installation & tuning? I'm sure everyone here would appreciate it if you could post before & after dynos. We've seen turbo_pwr's, but they were on two different dynos (and two different types of dynos), so they're not easy to compare... though I think we all agreed that the ITBs didn't do as much as many of us had hoped.

Also, what are your current mods, and what additional mods do you plan on doing at the same time, in order to reach 255hp (I'm assuming that's flywheel hp)?

turbo_pwr

I wouldn't get your hopes up. Are you running the Jenvey kit with an F20C in an actual s2000? Or are you running some sort of kit car?

ultimate lurker

As turbo_pwr can attest, running without an alpha based (TPS) engine management system and individual throttle bodies will not give you good performance. You might get one part of the performance spectrum functioning, but you'll give up something else.

There are numerous problems with the basic Jenvey kit. They can be resolved, but in no particular order they are:

1. Throttle bodies are too small. Anything under 52mm simply won't cut it if you plan on increasing power significantly over stock. I would prefer 55mm myself.

2. No one seems to be running a plenum around the trumpet inlets. This means the TBs are breating hot air (even with the hood open) and there's plenty of turblence as well.

3. Someone should really rig a showerhead injector for better atomization (o.k., not really a problem per se, but its so easy with ITBs!!).

4. No one has tested multiple length trumpets for maximum effect on the F20C.

UL

foz01

Hi guys

It's staying in an S2000, the first one in the UK as far as i know

heres a dyno plot http://www.jenvey.co.uk/Imgs/Kits/pgCKH05.gif

This isn't my actual car but one to exacty the same spec- i will ge t my figures today some time.
Mods are obviously ITB's
Stock manifold (header)
Custom 2-1 section from header
RS*R Race Exhaust
De cat

I plan on Heat wrapping the exhaust and installing a NACA type duct or Reverie carbon airbox witrh cold air ducting

http://www.reverie.ltd.uk/

will post up the results when i get them, th emain benefit is however in the mide range power and torque- the std engine is pretty special but 15bhp at the top end isn't to be sniffed at imo

foz