ajc1988

iTrader: (2)

hi just wondering if anybody can tell me what power i can realistically get from a version 5 type r bottom end with sti3 heads fitted? To start with im just getting the car repaired but in the future i am wanting bigger turbo, injectors, front mount and hopefully looking for around 400bhp is this realistic with this engine?
andy

TonyBurns

iTrader: (3)

About 350bhp before compromising reliability, you will need that plus a lot more cash and parts if you want a reliable 400bhp (circa 10k's worth )

Tony

ajc1988

iTrader: (2)

cheers for that mate. Can i just ask why you saying an extra 10k's worth of stuff? Ive been told in the past the type r bottom end should be good for around 450 max. Is it my heads that are the weak link or the whole lot?
Andy

ajc1988

iTrader: (2)

cheers for that mate. Can i just ask why you saying an extra 10k's worth of stuff? Ive been told in the past the type r bottom end should be good for around 450 max. Is it my heads that are the weak link or the whole lot?
Andy

Mus

iTrader: (2)

Sti 5/6 bottom end can proberly take a bit more than 350/350, there was a chap on here that used a lot of e85 and iirc he got to 500bhp not sure how long it lasted. If you running a ver 5/6 box you should be good for 400/400 as longas you don't drive it like you stole it all the time and you don't launch at every traffic lights. Your heads are fine up to and around 500. If you got a ver5/6 box you can add a good clutch with that for 400-700 quid, some nice gt spec or ported headers, bigger injectors, fmic, fpr, bigger induction, after Market ecu depends what ecu you currently running drop a genuine 16 or 18g and you will have an amazing road car which will spool well and go like a stink and should be relitevley reliable depends on who puts it together and maps It for you. And also who owned the car before you if they looked after it and ran it with correct fuel and regular oil changes. Good luck pal

Mus

Mus

iTrader: (2)

Sti 5/6 bottom end can proberly take a bit more than 350/350, there was a chap on here that used a lot of e85 and iirc he got to 500bhp not sure how long it lasted. If you running a ver 5/6 box you should be good for 400/400 as longas you don't drive it like you stole it all the time and you don't launch at every traffic lights. Your heads are fine up to and around 500. If you got a ver5/6 box you can add a good clutch with that for 400-700 quid, some nice gt spec or ported headers, bigger injectors, fmic, fpr, bigger induction, after Market ecu depends what ecu you currently running drop a genuine 16 or 18g and you will have an amazing road car which will spool well and go like a stink and should be relitevley reliable depends on who puts it together and maps It for you. And also who owned the car before you if they looked after it and ran it with correct fuel and regular oil changes. Good luck pal

Mus

dunx

iTrader: (3)

Andy, the key word is RELIABLE,

At 400/400,

gearbox = dead
clutch = dead
brakes = dead
suspension = dead
ecu = swap

+ turbo, fuel system, exhaust, ecu, FMIC, induction kit, injectors, clutch, PPG gears, labour !

It soon adds up.

All IMHO,

dunx

gpssti4

iTrader: (6)

^ What dunx said. I'd aim for high 300's, something like 370bhp, with a little less torque and let the engine rev to deliver the power.

ajc1988

iTrader: (2)

ok cheers for the replys. Ive already got the brembo brakes on the front of the car and the exhaust as ive got 3 inch afterburner on it. I am planning on getting a simtek put into car before i change anything like the turbo, once engine been rebuilt. My next question then is im going to look at around 370 which is the best turbo and injectors for this power and what torque will i roughly get from the car?

Andy

gpssti4

iTrader: (6)

I'm running 550's Apexi, MD321H, MY04 sti intercooler, exhaust, fuel pump etc on my sti4 and am getting about 370bhp. It could possibly go higher, just need a good tuner to look at it when the time (=money) is right.

ajc1988

iTrader: (2)

ok cheers for that mate. Think i will stick to around this bhp figure from the advice that has been given.

Andy

TonyBurns

iTrader: (3)

I wouldnt even run it at 370, stick below 350bhp, you start to see plenty more failures at around the 350 mark, normally rods breaking, and considering they all use the same rods....
Bottom end is "reliable" to about 350bhp, some run more, some less, most dont complain at 350bhp but it will compromise gearbox and clutch reliability.
New age STI engines are good for 450bhp, not classics though, full rebuild with all the additional supporting mods for reliability will set you back 10k+, but your going to need to go FMIC for 320bhp+ on a classic really.

Tony

PS running a vf22 hybrid MD turbocharger, injectors, fmic etc on my type r and im not kicking the **** out of it (320-330bhp) as I dont want a big bill

TonyBurns

iTrader: (3)

Look for parts like these, nice for 350bhp

https://www.scoobynet.com/private-fo...3-04-10-a.html

Tony

johnlogie

iTrader: (4)

RCM K&N / MAF Delete
TD05 18g Turbo
Nismo/Tomei 555cc injectors
Full 3" DeCat
Un-equal Tubular headers And Up-pipe(RCM)
Hybrid FMIC
Baileys VTA Dump Valve
Walbro 255
3 Port BCS
Simtek ECU With Antilag and Launch control
Mapped By JGM(Again)
350 BHP on V-Power
370BHP/350FT/LB on V-Power + 10% Meth

ajc1988

iTrader: (2)

so im getting 2 different opinions here. Some saying 370 ish should be fine and others saying not above 350, it would be nice if any of the engine tuners are reading this and can give there opinion.

Andy

TonyBurns

iTrader: (3)

I think most of the engine tuners will agree with me, 350 is about as far as you want to tune these engines to keep reliability, they use to rebuild these at 330-340ish bhp back in 2000ish for big power, the internals have not changed in all those years, the design of the con rods is a big weak point, if you stick with 350bhp then you "should" have a nice, reliable car

Tony

rapid.STI

iTrader: (5)

my understanding was owt over 350 and your losing reliability,, 350 in a classic should be well enough andy.. and it aint to expensive to achieve

ajc1988

iTrader: (2)

cheers wayne still stuck in 2 minds whether to use one i got or try and get a newage bottom end. Will be sticking to 2l though not wanting 2.5l.

Andy

rapid.STI

iTrader: (5)

just get it dropped in and head for 350,, economical, reliable & yet still fun makes sense in the long run? plus she should be ready for summer!

wayne.

ajc1988

iTrader: (2)

yeh i think thats what im going to do mate just want her back on the road now.

Andy

longone1981

out of interest at what point do head gaskets tend to need uprating on these?

sy.

iTrader: (8)

no sure on the hg but your limiting factor is your gearbox above 350hp it will not last long so if your looking at tuning engine around 370hp then for the sake of 20-30hp more your going into big ££££s forged engine, 6 speed ect.. the point being on the road driving what is the difference between running say 365hp or 345hp no as much as you think my old classic was running 342hp and was perfect a fast road car if you dont already have suspension/brake upgrades put some of the saved £££s into these and make your self a all round fast road car

rickya

iTrader: (18)

I would do it properly a get a proper built 2.1 Stroker & then you could run way over 400bhp relativley safely.

longone1981

im happy power wise with mine making 346 just someone i know has bought a bugeye and wants a spec list drawn up and i wasnt sure on head gaskets

Westwood2006

iTrader: (1)

My STI 5 ran at 355 bhp / 320 lbs for 60k miles before one of the big ends went at 90k... and there were alot of oil changes in there!

Edit - Standard internals & gearbox plus exedy organic clutch.