As above really, i've heard it said many times on here that they simply can't make a GENUINE 400bhp and if they get near they'll not last long..just wondered how many of you have had them up @ 400+ or as near as and how long did the T34 last etc??

Can this be got on standard cams too??

Just interested because a guy at work reckons his made 418bhp/ 398lb/ft on his saff with T34.63 standard engine etc..i'm not so sure tbh...

 

Doubt it very much on a standard engine......

I had that on my car Pete, Standard engine with T34 .63 and Karl said you could get around 380bhp with NO engine mods.....

 

I made 380 on power engineerings dd rollers, with headwork, bd14in bd10ex and only 1.5bar spike, 1.2 held.
now I'm on a STD ex and 2bar held it feels 3 times faster, should definately b 400

I'm sure martins seen over 400 on his rollers with a t34

 

The main thing it depends on, is the spec of the rollers.

At engine advantages, you would piss 400 on a standard engine with a T34

 

A T34 wont make 418hp .... your mate is talking rubbish - 318hp maybe lol

 

You would be replacing the turbo every 5 mins Pete.
Thanks.Lee.

 

Can i have one

Steve

 

surely dont you mean on a T3 with a bleed valve and some copper "straight from the kitchen sink" pipework

 

This is one of my old engines, would do 12.7s quarters at 118mph, so make of that what you will as in-car power (traction was an issue). Spec was T34 0.63 a/r housing, medium port head with Mountune K2 cams (11mm of lift), which beat the shit out of the lifters, that these would need replacing every 20,000 miles .



The turbos lasted 3 months at a time....

 

mine did it - but it wasnt a standard engine and the t34 was upon as an annual service item.

car did make the quoted 406bhp and 410lb/ft when i had ahmed set it up but then a year later the turbo went again so got it rebuilt and got a mate to set it at 2bar and was producing 380 or 390 bhp / lb/ft.

I believe the standard engine is good for 400bhp but i reckon the turbo will have to work much harder than what mine did and that was bad enough

go for it mate - you will shit your pants

 

Was that on leaded fuel Mike?

Good power that even if it was

Thats the utter ragged edge for a T34 im sure!

 

mike mine had a mountune k2 inlet cam also

ported polished head, low comp, long studs, etc

which is a pretty basic spec by todays standards.

 

my t34 lasted 12-18 months - had about 5 in the car in the 6 or so years i owned it

so chip yes that is the limit

 

i made 370 bhp 420lb ft on a T34.48 @35psi peak, turbo lasted 75k miles which i did in 3 years of every day use.

I think the T34.63 can JUST about do 400 on a good day.

 

Nope, super unleaded . And just after they took all the Benzine out, which is what I think reduced the protective properties of the fuel, as before that I had a 0.48 a/r turbine running 385bhp on standard head (bar 3-angle valves and seats) and cams, and I didn't lose a single turbo (part of the reason I loved this set up - it was just SO reliable), but while the new engine was being built, they stopped adding Benzine to the fuel (due to it's carcenagenic properties) and then when I got it on the road I started losing turbos, despite running them to very similar boost levels than the earlier engine (here is the 385bhp plot):

 

interesting im glad i turned the boost down on mine when i got the car as it was peaking at 35psi so would have died pretty quick judging by your 3 month turbo life

 

So with engine mods they CAN do 400 then ?

 

Yes, but to achieve that, the turbo is overspeeding so much, it just lets go after a very short time. Really, on current fuel (and if you want them to last), I'd be running them at 370bhp, which is about the SAFE limit for one.

 

both colly and rex have made 400bhp in the past couple of weeks on a t34!!!

on martoons rollers

 

James, on a .48 housing aswell?? that's some going, 75k miles too, obviuosly there's an exception to the rule....










Mike,

Fair-play to that, very impressive AND impressive quarters too...

So the majoritiy of us/you would say around 370-380 is more realistic??

 

Jay,

Martoons are DD Rollers aren't they??

 

Surely it depends on the turbo build ? If you fitted maram shafts for example, which are designed for rallye turbo applications, such as full boost all the time through agressive anti lag, and high boost pressures, but ran that same spec turbo without anti lag and slightly lower boost pressure, then it will last longer but be specced to handle the high boost pressure.

Obviously you would need engine work to handle the higher airflow, but it should be possible to see 400hp ?

Not sure why you would bother, with DBB or billet wheel technology you can run a BIG turbo and still have the same spool characteristics as smaller ones, if i am not misinformed ?

 

pass fella i tend to stay away from rolling road argument i aint got a clue what they are

 

You're very wise mate....

 

At aprox what psi is needed for 380 on std comp /std cams .63?

 

2 bar i would suspect

 

Ben, as Ran says mate, 2bar-2.2 should see you around that figure..

 

ok cheers , mines at 28psi at the moment no idea what power though

 

.....u keepn it now fella..???

 

Think so pete , only needs a bit of paint to finish

 

...well not sure if mine is close to 400bhp as its live mapped by msd as the std msd 380 map was running lean on the siemens.

 

i got 388bhp,376 lb ft on a t34.48 bd10 inlet,std head 2bar spike and 26psi at top end on harvey engine dyno.so would of thought a .63 would piss it,but with slight less torque?

 

.........

 

a friend of mine runs a t34 and he's hitting just under 500bhp 480 something but thats not standerd

 

Steve

 

lol

 

Is it twin turbo lol

 

.....no he aint fella........honest

 

the compressor air map is 370 bhp
so 500 bhp is bollox rich was your mate also running greens lol
perhaps he mistook the 5 and it was infact a 3