What injec/chipset for RS2+ power

[Vorsprung durch Technik]

In which case... you need to arrange a date for the tuner and the car and yourself to be wherever you're going to do the mapping...

It would normally (as has been said) be the tuner which specifies what he feels he needs to use to reach the goals for the engine which you have decided...

Good luck with that....

Thanks. So would it be ok for me to just fit all what i have mentioned i.e.; Wagner evo RS exh manifold,Volvo turbo,3" downpipe,custom intercooler bosch 440cc injectors perhaps a ported and flowed head and run the stock ecu until i can get it mapped on a rolling road?

[Rikki Kitto]

Mark AutomarkUK did mine and has done a few on here he is a very knowledgable man very helpful and probably one of only a handful left who will faf about with our older cars think my set up is very similar to yours he spent the whole day doing a custom live map and car feels rapid boosts to 1.5/6, had issues on a dyno run but that was caused by a post map boost leak now sorted n waiting to get back on a dyno for some figures, give him a call he is always happy to talk, when you can get hold of him

[Vorsprung durch Technik]

Thanks Rikki,i think that's the way i am going to go mate. I'm going to call him tomorrow fingers crossed i can get hold of him.I've heard he's a very friendly chap,at least anyone who's been to see him recently has all said that.So once i get to talk to him and understand whats necessary i will have my work cut out to get things rolling my end.

Can anyone recommend a first class reliable engineering firm who knows the engines who can machine out the extra waterways on my 7A head?

[andy10v]

If you want it to be the best it can be you need a live map on your car, so with the stock ECU in the UK Automark is to be the current option.

He will map a k24 7400 with 440s, but would rather use smaller injectors when I spoke to him. You can fit all the mechanical components, leave the n75 unplugged (so only spring boost), then fit the injectors at Automark. The car will run on 440s with a stock ecu, but pig rich (not advised).

JP/JNL Racing on here for the headwork;

http://www.s2forum.com/forum/member.php?u=4857

[pasbogdan]

First find the person that will provide the software.Generic or live map.After that buy the parts.

[Vorsprung durch Technik]

Pasbogdan,unfortunately i already bought the Wagner manifold, Volvo turbo,Porsche 944 S2 hotside,i already have the head,but i don't see this as detrimental to my plans.Yes i will ask about injectors which was part of the original question.

[pasbogdan]

I say this because i have now at the shop a motronic running s6,k26 turbine,wagner exhaust manifold,green bosch 440 injectors,coilpack conversion,044 bosch in tank pump,14 point afr/egt/fuel pressure tool and client needs a custom map.

[Vorsprung durch Technik]

Getting the head done isn't a bad idea if you can afford it, making it more efficient will help the turbo spool up a little earlier as well as providing gains throughout the rev range. I think one of the reasons my car come's onto boost so early is the head work done by Brian Rickets way back in 1993 when it had the Nothelle conversion fitted.

Nice one Kit,i had no idea your coupe had a special head.This is exactly my requirements for the reasons you mentioned.I bet your car must be a hoot to drive.I think i might need to swing by your way again

[Vorsprung durch Technik]

If you want it to be the best it can be you need a live map on your car, so with the stock ECU in the UK Automark is to be the current option.

He will map a k24 7400 with 440s, but would rather use smaller injectors when I spoke to him. You can fit all the mechanical components, leave the n75 unplugged (so only spring boost), then fit the injectors at Automark. The car will run on 440s with a stock ecu, but pig rich (not advised).

JP/JNL Racing on here for the headwork;

http://www.s2forum.com/forum/member.php?u=4857

Thanks for all your help Andy it's much appreciated!

[Rusty]

JNL did an upgrade on my cylinder head for the new build I did. The upgrade was tailored around my 400-450bhp goal and was very good value for what was done. Give him a shout.

For your modest goal, just a rebuild with multi angle valve seats would be a good start. Might be worth considering a billet RS2 turbo instead, to maximise your gains for the same outlay.

[andyg plym]

My Rs2 injectors maxed out at 370.

Had mine dynod at 388 bhp on rs2 turbo and injectors with ts chips

[Rikki Kitto]

JP is defo the man for your head not too far away from you either he's between Luton and Dunstable

[Rikki Kitto]

You will need a Bosch 044 fuel pump too

[Bowie69]

Alternatively, invest in an aftermarket ECU, then you can get anyone who knows what they are doing to tune it, rather than rely on only 2 people (as good as they are!) and have software that you can use to interrogate it yourself should something go amiss.

It may cost a bit more up front, but the ability to self-diagnose will save you a fortune in the long run, as well as open up a whole raft of different tuners to use.

[Vorsprung durch Technik]

I just had a very interesting chat with Mark at Automark. On injectors apparently you need 1cc per 1hp. So for my target of 350 - 375 bhp he recommended using the RS2 injectors or similar. He likes my idea of what i want to achieve using the size of the Volvo k24 7400 and it's characteristics. Mark mentioned it's all about air speed and not necessarily size of turbo.For my build i only want an everyday usable road car with lots of low down torque and boost available from very low down in the rev range. For a normal road car the Volvo turbo fits that brief well. It's all relative.

The way he described it was imagine a windy day, .. .. .. .. open your back door completely then open your front door by 1" and you will feel the air rushing in very fast.Now open up your front door fully and the air speed has now dropped right of.Ie now the Turbo has lost it's pressure it needs to work efficiently.

For this reason he recommends using 2 small intercoolers rather than 1 larger one and placing the maf in between the 2 intercoolers so the maf is now pressurised pushing air rather than sucking air.This sounds great from the point of keeping up air speed but i would have to work out where to place the second intercooler. I'm thinking that's not going to be easy to achieve 2 smaller intercoolers but would like to.I'm not keen on moving the maf away from it's original place but understand the advantages according to Mark.If i can find somewhere to fit another small intercooler i will.

Has anyone done this i.e.,using 2 small intercoolers in parallel?