Burt_S2

ive been looking about in the archives but cant really get a definitive answer.....i bought my series 2 last summer and have had it stored over the winter and been building up parts to tune it...its a standard car apart from full stainless exhaust and uprated suspension, the engine has 108k on it and drives very nice and tight with no probs in clutch or gear box

so far ive got a airtec front mount with fans, -31, turbosystems chip and cone filter to go on.....i am now thinking i should go for a stage 2 t3 and an organic clutch and try for more than 200bhp

just wondering if the standard internals and head etc can withstand around 220-230bhp and what my limiting factors arwe for reaching this sort of power figure

Cheers

Barry

martinmilne

i think everyone would say gearbox is the limiting factor but if your on mfi still think you need 5th injector or convert to efi to go over 200

Burt_S2

Yeah was thinking gearbox too as i know the torque could cause problems.....has anyone got much over 200bhp without going efi? Is a 5th injector the only way for mfi?

Karlos G

iTrader: (4)

Fuelling will be the limiting factor, some MFI's will fuel for more or less than others so just pot luck really.
5th is a good compromise if staying MFI but EFI would be far better of course.

Burt_S2

Been reading a few posts and def seems efi is the way to go but over here in N.Ireland there arent to many people who know the old rs's well and how to set them up, plus it would be more costly would it not?.....i take it head work and a cam would be needed for over 200 bhp aswell?....and there was me thinking i could get to 200 or so on a budget lol

essexRSTSouthend

Limiting factor are the conrods on the standard bottom.Some can take more than others,all depending on build,mileage.I currently run mfi at 196bhp and that was with a complete standard head and bottom and cam,turbo.

Normally people recommend stage 2 t3,uprated cam to get to and over the 200bhp.
Jano is currently running 270bhp plus on standard bottom... But thats a major risk.I've been told a max of 250bhp,using arp conrod bolts.Due to me just having a standard bottom,ill be going no more than 230bhp.

I hit 210bhp but fueling was limited,196bhp was a safe limit but on mfi you use so much fuel.So i got myself a 5th injector,which aint exactly easy to get hold of these days.That will let the mfi be under less strain,less fuel being used (around town driving is a bonus) and still have more power on top.

Hope that helps.

So stage 2 t3,uprated cam with 5th injector on standard engine will see you over that 200bhp.

Efi is a good option.Alot of members have chosen this.

Gearbox,hard launches will kill the standard box but if driven on rolling starts it should be fine.Known a few mates to still be running standard box at 250bhp+.But personally at this level of power id get in contact with gearboxman online for a uprated gearbox.

Burt_S2

cheers for those replies lads, much appreciated.

If i could get a hold of a 5th injector that would be great, im not normally one for chasing figures but i sold my 300bhp 2 door impreza last year and bought the rst with the intention of making it as quick or in a round that anyway.....am hoping that power to weight and 2 less wheels to power should go in my favour

I know point to point and off the line and stuff traction will be an issue but its more in gear i would be giving it boost i wouldnt be hard on a clutch or gearbox at all, and def no hard launches.

is a 2wd cossie turbo the same as a stage 2 T3 Hybrid?

Canada1

2wd Cossie turbo is a stage 3 I believe - .48 exhaust and 55 trim compressor

Please correct me if I am wrong.
Some stage 3 T3's are the 4x4 cossie .48 exhaust and 60 trim compressor.

Jonny Wiffa

I have also had beyond 200BHP on MFI. some trickery was applied knowledge of which stayed with the garage but no 5th injector. i must stress however that this was on a 7.2:1 engine build + uprated CAM, uprated turbo & -31.

TBH, EFI is the way for a plug in upgrade. i've just done one on a series 1 with no help. started first time fine, runs sweet as. seems the injectors + ecu remap is more expensive VS MFI though. keep that in mind. Also finding the injectors proved to be a monumental prick. That said, it will enable me to the get the full 250/260 from the engine build. no tears were lost loosing the MFI unit i can tell you.

As for gear boxes. i had 6, yes 6 250BHP engines bolted to a modified shaft gearbox such it ran modified bearings. when it finally died, i bought a re-con FROM FORDS. lasted 3 weeks... but i drive HARD!!!!

essexRSTSouthend

mf2 erl system is what you need for a decent 5th injector.

At 200bhp with the rs should be near enough same as the 300bhp impreza,comparing weight to ratio etc.. rs turbo weighing in at 980kg kerb weight and impreza being..... well over 1000kg kerb weight.What is the weight of one by the way lol

BAZRS2000

hi burt here under my home computer user name. the impreza was a 2 door type r weighing around 1260kgs, it was fast off the line with the 4wd and short close gear ratios.

yeah am thinking i might just fit the bits i have and get it set up for around 190bhp if i can, then if i want more power from there il get the bigger turbo and go for a 5th injector......id like to go efi but im trying to do it on a budget as just got engaged so have a wedding and house deposit to save for lol

essexRSTSouthend

280kg's difference then..

So rs 207.36 Power to Weight Ratio and your impreza be 241.92 .

Thats going by 200bhp rs turbo and the impreza being 300bhp.

To get near the same Bhp as the impreza,you need 233bhp at flywheel .Meaning Power to weight ratio for the rs would be 241.57.

BAZRS2000

ah well im sure it will be fun anyway and will have the old skool character to go with it

ROB7656

see how your mfi will fuel before going to far.

BAZRS2000

cheers lads

I have been put in contact with a guy who has a very good rep over here in setting up rst's and knows the mfi set up properly.... he did the bro's s2 years ago and although only stage 1 chip and exhaust it was a good going thing so ill get the bits fitted in the spring and get it left in for a healthcheck and set up, then take it form there...

essexRSTSouthend

200bhp is fun.It's all about the torque figures.What did the impreza pull?

T28 RST

https://passionford.com/forum/ford-e...-fool-out.html

Believe what you like

essexRSTSouthend

Ah yes my lovely topic.Thanks for bringing that up.I still stick to what my car makes.And i love it!

Burt_S2

the impreza was a genuine 305/260 but it weighs near 300kg more and has 4 wheels to power, im not too hung up on figures i just want something that will put a smile on my face and give me that bit of a buzz on boost

essexRSTSouthend

Hold on tight then mate

BAZRS2000

thats what i love about the old skool rs's bit of lag then boom here comes the boost lol....cars are too civilised and boring these days especially modern turbo'd cars way to smooth and no character!

essexRSTSouthend

Yes exactly why i love the rs turbo.Saves going to the gym lol

Jonny Wiffa

Game on! could not have said it better myself.

i test drove a mitzi evo 330. damn quick but too refined for me. i want to near mess myself when i boot it. so i bought a series 1!

I can give you a contact for a fuel test or indeed the full works on your rs matey. Just let me know if you need it.

well respected team. you'll know the names.