Soldato
I like your style. Although Sonic Blue V Lim WRC for me please
My current cars:-
Golf = 2 VR6 turbo engines.
Jeep= Supercharger and N O S
Pretty sure just one turbo'd vr6 engine would be capable of 400...
The just for fun 400hp challenge
- Thread starter Jonny69
- Start date
Pretty sure just one turbo'd vr6 engine would be capable of 400...
Soldato
Soldato
E30 touring with full coachwork custom interior, custom suspension and 335d running gear. Then throw it at a tuning company to bring it up to 400bhp
To actually spec a 400 bhp engine:
Cosworth YB
*Ported and polished head - 26mm inlet ports, 25 mm outlet, cut back valve guides, inlet and exhaust manifolds matched.
*WRC multi layer steel head gasket
*Standard cams
*Radtec RS500 intercooler
*Radtec alloy radiator
*Group A cone filter (maahhhhooosive!)
*Siemens Black injectors
*T34.63 turbo
*3" down pipe and straight through exhaust (no baffles
) with 3.5" backbox
*Karl Norris live map - 32 psi peak dropping to 28 psi midrange and 24 psi limiter.
Good for 400/400
(occassionally!! 
)
To go a bit more than 400 would need a T38 turbo, and slight machining to pistons.
500+ needs small turbo escos plenum, 7.2 compression, BD14/16 cams, 200 block, T4/GT30 turbo and air injectors/boost control and a swap to L 8 management - and it'll be even less reliable.
Cosworth YB
*Ported and polished head - 26mm inlet ports, 25 mm outlet, cut back valve guides, inlet and exhaust manifolds matched.
*WRC multi layer steel head gasket
*Standard cams
*Radtec RS500 intercooler
*Radtec alloy radiator
*Group A cone filter (maahhhhooosive!)
*Siemens Black injectors
*T34.63 turbo
*3" down pipe and straight through exhaust (no baffles
) with 3.5" backbox*Karl Norris live map - 32 psi peak dropping to 28 psi midrange and 24 psi limiter.
Good for 400/400
(occassionally!! )To go a bit more than 400 would need a T38 turbo, and slight machining to pistons.
500+ needs small turbo escos plenum, 7.2 compression, BD14/16 cams, 200 block, T4/GT30 turbo and air injectors/boost control and a swap to L 8 management - and it'll be even less reliable.
Caporegime
I jsut bought an RS4 (B5)
426bhp
With a user name like "SeatIbiza" ?
Hmm.
To actually spec a 400 bhp engine:
Cosworth YB
*Ported and polished head - 26mm inlet ports, 25 mm outlet, cut back valve guides, inlet and exhaust manifolds matched.
*WRC multi layer steel head gasket
*Standard cams
*Radtec RS500 intercooler
*Radtec alloy radiator
*Group A cone filter (maahhhhooosive!)
*Siemens Black injectors
*T34.63 turbo
*3" down pipe and straight through exhaust (no baffles
*Karl Norris live map - 32 psi peak dropping to 28 psi midrange and 24 psi limiter.
Good for 400/400
To go a bit more than 400 would need a T38 turbo, and slight machining to pistons.
500+ needs small turbo escos plenum, 7.2 compression, BD14/16 cams, 200 block, T4/GT30 turbo and air injectors/boost control and a swap to L 8 management - and it'll be even less reliable.
Is this the spec that suffers jubilee clip failures @ 160+ ?
How about trying 9.5:1 compression and only 1bar instead of living in the eighties?
*n
Big boost = big torque. That, and as you say it is an 80's engine. Some do run higher comp, but the 7.2 route is proven.
Anyway, I have a wardrobe full of Tacchini tennis shirts and kickers shoes to go with my mullet
What's wrong with the 80's? R124/LA420 said:
No. It was on a standard head, crappy cometic gasket, light blue injectors and a T34.48 and an AWFUL map at that point.
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![[huzeeee]](/styles/overclockers/avatars/3.png){kind=avatar}
http://www.git.com.au/~theedge/buggies_ballistic.htm
I actually dont think you could have much more fun than 400bhp in 2 seater offroad buggy
I actually dont think you could have much more fun than 400bhp in 2 seater offroad buggy
Soldato
Nice spec Andi
Did you mean 321H though ? from what I've read it would be pushing it to get to 400 and the 321T one like mine is probably a better match for a 2.5 and get comfortably into the 400's.
On a new age would also say that the 740 injectors/fmic and simtek ecu whilst being very nice are only really necessary for going 450+ and for 400's you could manage on the Sti top mount, 650's and ecutek remap..
The turbo was based on Andy F's recommended specs for 390-410 bhp on his website, although yeah, reading again your right, the T would probably suit the 2.5 better. And FMICs look cool
Man of Honour
Generally the 321H is for 2 litres up to about 440bhp, and the 321T is for 2.5 litres up to about 430, or 2 litres up to about 480bhp. The 321T is noticably more laggy than the H on a 2 litre I'm told.
400 on a newage STI is just too easy because you can keep the original engine, clutch and transmission, but for what it's worth it took me:
MD321H turbo
Bosch 650 injectors
Walbro 255 fuel pump
Hayward and Scott 3" psorts cat exhaust.
Hyperflow induction
RCM oil catch can
HKS EVC boost control (the difference from my last best of 389bhp was going from 1.45 bar to 1.75 bar...)
Remap of course.
M
400 on a newage STI is just too easy because you can keep the original engine, clutch and transmission, but for what it's worth it took me:
MD321H turbo
Bosch 650 injectors
Walbro 255 fuel pump
Hayward and Scott 3" psorts cat exhaust.
Hyperflow induction
RCM oil catch can
HKS EVC boost control (the difference from my last best of 389bhp was going from 1.45 bar to 1.75 bar...)
Remap of course.
M
Associate
Nice spec mate, I agree the newage gearbox is good for those numbers but 400+ on the standard internals and 380/400 torque on the standard clutch must be pushing it tho especially at 1.75 bar ?
Man of Honour
Might be why this is the third clutch in 50k miles...
The original owner (new -> 30k miles) fitted an Exedy heavy-duty clutch at some point, and at around 45k miles I had to have that replaced with an AP Racing one after it died.M