What is the most possible,

Also how much work and/or cost is involved with rotating turbo

 

There are a couple of turbo's capable of making 500 bhp in standard position, Rotated turbo kts can vary, Mine was a snip at £1300 new, but realistically your looking at £2K+

 

terryb has 503bhp and his is an MD321t

 

also there is a gt30 for sale on ebay with all the rotated bits with it on ebay

 

I run this turbo atm, i thought they were rated to 450 max

 

Yeah I was watching that, bidding at one point

 

Pretty sure this figure was reached using race fuel + mapping....

 

the 450 figure for the 321t is on the conservative side

 

Like Conrad says, the 450bhp rating is on the conservative side. There are a few people who have achieved circa 480bhp on V Power, and some others who have achieved circa 500bhp running either race fuel, or a methanol mix.

It does of course depend on the car set up, and mapping.

There are some bigger versions currently being tested, with the aim being circa 500bhp on V Power.


Mark.

 

Mine made 486bhp on a rotated gt30r at scooby clinic running 1.7 bar and only pump fuel

 

cookstar i have an md321t aswell and got 420bhp, terry got his 503 using race fuel but still got iirc over 450 with road fuel so still not bad for standard pos!

 

Currently running 520bhp on a stock mount SM FP Red.

Should be back on the dyno soon with a V-Power/Meth/NF mix and a little more boost. May also try some race fuel similar to what Terry ran

 

bloody hell was that on road fuel or the mix u mentioned...what boost?

 

V-Power & NF @ 1.9bar iirc.

Currently using V-Power with Methanol and boost is now a healthy 2.4bar. Butt dyno says it's faster

 

class!

 

Thats good news, just to confirm are these figures on a 2.0

 

We're getting very similar BHP results from 2.0lt > 2.5lt, with torque being the main difference between engine size.


Mark.

 

iirc we got on Terry's car 455bhp on Vpower, 470bhp on vpower + meth and 504bhp on race fuel... it was still producing more power with each degree of timing that I added when we got to 504 but had to keep in mind it's sole use was Time Attack not the odd WOT on the weekend

Boost was around 2bar tailing to 1.85bar iirc..

Simon

 

my MD321t is only running around 1.4 bar atm, so looks like quite a bit more power to be had then

 

im getting 420 from mine at 1.8bar but my headers were pooped

 

Running an MD195s turbos from Turbo Dynamics on a built 2 litre..
457bhp and 420lbft @ 1.65 bar from a 2 litre on V Power ...

 

There is no reason why you cannot go a long way past 500bhp on road fuel and approach 600bhp on race fuel with the turbo mounted in the O/E position.
It is down to having the right mods and turbo.
I had to cut the lug on my gearbox bellhousing for the turbo to fit but it did the business.
Out of date but index