Astra 2.5 V6 Turbo - 370bhp

[BeArDy]

Racing line has just finished the conversion
looks good and very tidy, there going to post up graphs tomoz.

http://www.theracingline.co.uk/forum...opic.php?t=210

[DaveB]

racing line finished that conversion months ago

[BeArDy]

racing line finished that conversion months ago

Well only just heard about it.....
Heard your running NOS on the Astra or is that old news aswell lmao lmao lmao

[vxlgsi]

Thats quite funky... not sure about the solid metal pipe running from the TB though, do they not realise engines move about?

[DaveB]

iirc its on solid mounts, so won't move very far.

beardy;only jesting mate. Car/van is cool. I really love it. Don't think the owner will make the most of it though, he says high boost scares him

[Zoe]

Don't think the owner will make the most of it though, he says high boost scares him

I've Blown Up Every Car that I've ever Owned inc. a Honda!

You would though wouldnt you

[DaveB]

i said Id run it in for him but he was having none of it lmao

[vxlgsi]

This thread is useless without Vids!!! lmao lmao lmao

[Batfink]

That's a bit mad.

[Rs1]

Looking good.....but needs a bigger turbo
Dont see many folk doing turbo converions on the v6 370hp aint shy

[coolamasta]

Thats cool, cant see from the pics if the turbo is running off both banks or just the one

Prob both to produce that power nicely done though

[DaveB]

It's running off both banks. Car runs on DTA management, map was made from scratch

Turbo was brand new, from an STi scooby poo

[mattcoupturbo]

But will it melt like all the ther V6 turbo's that have been made?

[thecrow]

What did they do about cooling? Seems odd to do it to a 2.5 too rather than a 3.0?

though

[01DHartley]

astra c25xe turbo spec:

TD05 turbo
TRL spec low compression forged pistons
TRL spec 2.5" t304 stainless exhaust system
TRL spec stainless steel polished boost pipes
TRL spec forged FMIC
TRL spec fast road clutch
TRL spec Headers and up pipe
full TRL engine rebuild
F28 gearbox
Quaiffe Atb
DTA pro series 8 ecu
Turbosmart T-Reg pro FPR
Turbosmart megasonic BOV
Innovate wideband
Powertec metal gauze airfilter
walboro 255 fuel pump
SFS blue silicone hoses

[shane_o]

looks like standard manifolds, does it get a lot of lag being a remote turbo?

[thecrow]

looks like standard manifolds, does it get a lot of lag being a remote turbo?

I thought that about the exhaust manifolds too...

[DaveB]

But will it melt like all the ther V6 turbo's that have been made?

doubt it vry much

[01DHartley]

What did they do about cooling? Seems odd to do it to a 2.5 too rather than a 3.0?

though

we fitted the TRL spec FMIC, turbo bag, most of the exhaust system is heatwrapped, and also the turbo is mounted over the gearbox to keep things cool. i work there by the way never had any issues with it getting too hot

[mattcoupturbo]

So it has the restrictive standard manifolds that then pipe into the turbo 5 feet away? while the exhaust gas even be hot by then lmao

[thecrow]

Awesome - I think every other turbo V6 has melted piston 5 or 6 eventually as the coolant is basically completely ineffective by the time it gets there - I read that 'reliable' FI on a V6 would need modification of the block etc to make that more efficient.

Or is that something you don't want to give away?

So how comes a 2.5 rather than a 3.0? Don't tell me budget cos that aint going to have been a cheap conversion

[Zoe]

i said Id run it in for him but he was having none of it lmao

pmsl, can't blame him tbh


Looks a nice car look forward to seeing it at pod

[Steve!]

I will eat that at POD

[Mark T]

Frank Denke managed 600BHP, Supercharged and Nitrous, on a 3.0 so the mods are possible for reliable big charged GM V6s.

Just loadsa cash

[BeArDy]

The reason why piston 5 and 6 always melt is cos 99% off people mount the turdo off the block so heat is given off towards the block when on high boost reason why Saab Conversion work BUT can only run low PSI to reduce heat.
All the turbos which have lasted all have turbos over the gearbox.
Reason why every supercharges them as of the heat problems, V6 will work well under stress just not heat