What compression ratio have you gone for omar? noticed you got the thick 1.6mm Cosworth Headgaskets.

 

8.5:1 IIRC block was decked and heads had a light skim but I'll check with my mate who built my engine and confirm

 

Broadly speaking the electric system on a car is a loop, think of it as the earth feeding the power in and the live taking it out to where it needs to go. So, if you uprate or add any system so that more power is drawn from the battery, be it constantly or in spikes, the earth system should be uprated to match

Electric wise, using a crappy earth is like leaving the standard injectors in place but uprating the rest of the engine to 500bhp spec

 

Plates on....

 

Loving the plate! Nice Touch!

 

Project update.... Car is still in MartynJ 's hands and is running very well I'm due to drive down to Plymouth and collect on Thursday...

Follow my project on here too guys

http://thrll.com/car/1998-subaru-impreza-12545

 

Love the plate omar, you must have been chuffed to bits when she fired up for the first time, i know i cant wait to turn mine over for first time in over 2 years.
When is final mapping chap?

 

Yes seriously chuffed well as soon as I've put on some miles it will be ready for mapping I still need to install a swirlpot and proper pump setup as its currently running on the walbro in tank lift pump

 

Looking forward to seeing the results, I'm running a very similar spec to you with a gt3040, how do you think the 35r will perform on the 2.1 mate?

 

I've been told its seriously laggy but we will see how it goes once its mapped on meth and race fuel, guess ill have to make sure I'm in the right gear when on the street lol, I've got a mate that's running a gt3040 on a 2.35 its a very nice setup, if you ask martynj he should have a graph of the car

 

Lol should make for an interesting drive on the road, what sort of power his he making on the 3040 mate? Would be very interested in seeing the graph bud.

 

500ish iirc however the car is with enginetuner now due to a liner issue on the 2.35 so he is going for a 2.1 build, any graphs from Max's car Martyn ?

 

Unfortunately not to hand, I might be able to find them somewhere in the archived drive on the dyno, just takes a bit of faffing.

 

I'm loving the plate lol.

Liner Issue? On a EJ22T. What went wrong, if you don't mind me asking Martyn?

 

The liner didn't fail, the block was damaged beyond normal repair as a result of severe overheating.

 

I told him to change that leaking rad ages ago!

 

He's got a brand new one coming now, so that should be an end to all his problems.

 

Thanks

 

Not able to post a graph on request quickly, shocking

 

 

he's usually a graph slag

 

Lol, im keen to see the graph if you can find it martin, would you pm it to me if possible please, keep omars thread clean.

 

Will have a look in the archive today and get it across to you if we still have it.
We are running in the car and mapping the 2.1, so when that is done I'll be able to let you have that graph too.

 

Here you go !

Graph 1 was when it had the Piper cams that are now fitted to Omars engine.

Graph 2 is a back to back with the Cosworth cams it has now. Bit of a loss top end, but a decent chunk of torque gained low down.





Martyn

 

Thanks Martin, out of interest what were the piper cams and cosworth cams profiles? In using the jun 272's in mine with nicely ported and flowed v4 heads, is the graph on V power alone mate or a meth mix? Just trying to get a rough guesstimate at my cars power when complete, Sorry for invading your thread like this Omar.

 

The pipers are 276's which are in my motor now

 

Graphs were on VPower only, Omar has answered the Piper cam question, the Cosworth cams are 272 degree duration and 10mm lift.

 

Double post

 

If your going for cams in your build do not go for the piper reground cams they seem cheap at first but require some seriously oversized shims which only piper stock and cost almost £150 for a set,

 

Iv got the jun 272 duration 10mm lift omar, same spec as the cosworth ones, is your friend still using the 3040 on the 2.1 he is having built mate? Be very intersted to see the outcome as should be similar to mine, has he had any head work done do you know?