Hi guys

just a quick question , just bought a dawes device because i want to up the boost a bit while im getting parts for a 2.5 build etc... my car is a 96 wrx import with a few mods , full decat,fmic ,fuel pump etc.. i know its not always reconmended but i here that you can up the boost to 1bar quite safely?? just want a bit more power while i save up for new engine build!

any help would be great

thanks

c

 

on my00 i uped the boost to 1.1 fuel cutin at 1.2, Not sure about your but i would say 1. is ok.
set it to 1. if fuel dont cut off then your fine, if you do go higher and fuel does kick in then you will no as it feels like you just braked with your left foot.
I'm fully decated now and been remaped so i nolonger use a manual boost controller.

 

I wouldn't agree with this.

Fuel cut is caused by overboost and nothing more. The ECU wont cut the fuel if your about to melt a piston for example due to running lean.

It will cut the boost after staying above the a threshold for 2 seconds IIRC (around 1.2bar)

I would be untra cautious using a dewes device. The decat has probably already reised the boost from stock and increasing it more will be eating into your precious safety margin. If you use one get the the AFR checked out at the least.

 

Dawes, filter and decat is one of the best most cost effective mods going.
Good idea to have a small lambda display (available from about £30, I used to use a JWRacing one) and then its all good baby.

 

You not only need to monitor the mixture but more so potential detonation.
IMO your asking for trouble. These cars tend to go bang if you dont map them for increased boost. Det kills the crank quickly. Trust me

 

thanks for replys guys , i only want to run 1 bar for a bit until new engine is ready but will get an air/fuel gauge fitted asap! it it is running lean how can i correct it? fuel pressure reg? i know standerd 380cc injectors can only take 300bhp but id be happy with that for now!

any more advice would be great , like i said just lookin for a bit of cheap fun before new engine and ecu start eating my bank away!!

 

you'll not get 300 from a dawes with fuel cut still in place.
plus you're only talking about a 0.1 or 0.2 bar increase, jeez

 

My fuel cut is still in place and I get 330, not with a Dawes admittedly, but on 380cc injectors.

All at 1 bar of boost.

 

Mickywrx


your just lucky ??? I'm sure steveC could get better results

 

Not at 1bar on a 16g

 

I ran 1.7/8 bar on my 16g turbo But that was with an andy map

 

And what power did you make?

At TEG when SteveC still had a 16g a while back, his made 318 running more boost than mine does.

 

My car only ever made say 310bhp but that was at about 1.2bar when the car was mapped to 1.6bar on andy's laptop Its not what it make sbut how it drives Yours drive good

 

Thanks.

 

Location: TyneTeesScoobies - 330.1BHP - 12.46s 1/4mile @ 105mph Pushing the limits.
How did you do this @ just 105mph, @ that speed i only got around high 13's