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Corsa C 1.2 turbo conversion and various other DBilas turbo kit

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24K views 90 replies 25 participants last post by  chr15_8  
#1 ·
Is this a repost spy'd from corsasport

anyhooo..

This has been posted on AstraSport by Paul from Regal, there has been a fair few threads recently regarding the Diblas turbo conversions for the astra G and H and Paul posted this up, just for our interest really. I thought it would be good info for you lot

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Brought down to us at the exact time as the green Astra we had a lot of the astra guys that came down during the time it was here pretty excited about it, so i thought I'd post details.

Started life as a stock Z12XEP twinport car with a performance exhaust system on it.

While it was down here at Regal it had the full Dbilas package fitted to it along with SRI front brakes and a full set of gauges (air/fuel, oil temp and boost) to keep it nice and safe.

The car pulled 158bhp on our dyno. I didn't drive the car myself but the guys in the workshop that did said it was awesome. We've got a video of the dyno run on the camera. I'll get that up on Youtube or something soon. speedo goes all the way to 140mph and just sits on the peg.

here's some photos of the dyno run and the car's engine bay and of course the dyno run sheet:

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#7 ·
Think the turbo kits about ÂŁ3.5k, but theres other bits and bobs on there too...
 
#16 ·
more like 20% plus, plus you get greater transmission loss at higher speeds and on different road surfaces and cornering etc so its not an exact science. but engine power is really un-important, its whp that counts.
 
#29 ·
as has been said on corsasport it is total crap!

there is no way your gona double the power of the car just by adding a bolt on turbo!
Stange that my car is putting out 255.8bhp with the same conversion for the 1.8.

It must be so much crap that mine has been verified on 2 totally independant dyno's!!
 
#22 ·
yeah i know it isnt going to be able to run much boost as compression is far to high (11.5) i think it runs at about 6 psi.

there was someone on here who with the inlet and decat exhaust manifold was puching about 120 out of a 1.2 so i think this is feasable. also, i could have cams changed for all we know.
 
#24 ·
yeah i know it isnt going to be able to run much boost as compression is far to high (11.5) i think it runs at about 6 psi.

there was someone on here who with the inlet and decat exhaust manifold was puching about 120 out of a 1.2 so i think this is feasable. also, i could have cams changed for all we know.
120 bhp? What's the point? Poor bhp - ÂŁ ratio that.
That's 100bhp per litre, same as my 10 year old non turbo standard engine....
 
#26 ·
Regal get a lot of stick from people with knowledge.
Years ago they sorted a calibra turbo out for me, and 3 years later running high boost all that time it's still faultless.
But....How they can put their name on a graph like that is just extraordinary.
Anyone can see it is total ******** with a hugely over-inflated loss amount.
 
#31 ·
I'll try and scan them in later, but there were about another 10 members who saw it hit that power out our south east RR day!

Btw, thats with standard internals!
 
#33 ·
Everything inside the engine is standard! The it is totally reversible aswell and the power outputs are guaranteed by dibilas.
They also gurantee all the standard components for failure aswell!
Ive got low comp pistons, steel rods, LSD and paddle clutch going into mine in the new year as I want to turn the boost up and get more power.