Author Topic: Calibra 3.2 V6 in the works, opinions needed  (Read 6434 times)

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Offline Joest DTM

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Calibra 3.2 V6 in the works, opinions needed
« on: March 02, 2015, 10:18:41 AM »
Hello guys

I've decided to buy a second clean rolling shell of 4x4 Calibra to build me a RWD track day car.

The issue..
I am between 6VD1 (3.2 V6 from the Frontera_Opel engine code: Y32NE) or the known Y32SE from Omega B 3.2

From the specs that i can find on the net, 6VD1 is by far better
whereas Y32SE, easier to find, work on, a bit easier to fit and also easier to match it to an OPEL transmission.

What would you do on this?

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Offline Joest DTM

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #1 on: March 05, 2015, 17:30:35 PM »
wow...no replies

Going with the 6VD1 then :)
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Offline tommygards

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #2 on: March 06, 2015, 23:10:42 PM »
I think nobody replies because nobody knows.  A lot of people have tried this in the past and only a few finish, usually using a red top or a skyline engine.

Offline Bad Kid

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #3 on: March 06, 2015, 23:56:56 PM »
Apparently the 6VD1 makes a lot less power than the 3.2 from the Vectra C and Omega.

And all of them are heavier and less powerful than a mildly tuned C20LET or B204 engine. I wouldn't have any Vauxhall V6 in a track car.
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Offline Joest DTM

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #4 on: March 07, 2015, 22:24:27 PM »
@Tommygards
Yeah obviously :/
I've watched many posts and almost all of them never finish them....i am afraid of it as well
At least i did a start and bought a 4x4 rolling shell with registration papers.


@Bad Kid
good point, but..

6VD1 is lighter than ANY Opel V6...and apparently full aluminium engine ;)
75 degree V angle, is suitable for high revving set-ups (like 8500-9000rpm)

another positive are the dimensions it has. . .94mm piston size (!)
and 77mm stroke ..

Opel won the DTM in 96' in one of these engines.
Doesn't say much that was used in an SUV/off road vehicle...it was almost dead on the Frontera
Sound is lot nicer too
You can even twin-turbo it for....er...sick power figures. (on isuzu forums, they do 600whp on standard internals)

In short tracks that we have here,higher rpm 250-300hp will make it suitable i guess
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Offline Bad Kid

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #5 on: March 07, 2015, 22:31:10 PM »
Yes the bottom end can rev, but the cylinder heads are too restrictive. You'll need £3000 worth of manifolds, ITBs and management to break the 250bhp barrier.

And even then it's still heavier and less powerful than a £300 B204 engine with a remap.

Don't get me wrong I love the V6 engine for a lazy road car, but on track they suck, unless you have a six figure DTM budget behind you. That engine is nothing like a stock engine, and that DTM car was nothing like a stock Calibra.
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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #6 on: March 07, 2015, 22:40:14 PM »
Yes the bottom end can rev, but the cylinder heads are too restrictive. You'll need £3000 worth of manifolds, ITBs and management to break the 250bhp barrier.

And even then it's still heavier and less powerful than a £300 B204 engine with a remap.

Don't get me wrong I love the V6 engine for a lazy road car, but on track they suck, unless you have a six figure DTM budget behind you. That engine is nothing like a stock engine, and that DTM car was nothing like a stock Calibra.


I know almost everything about the DTM cars...don't ask how, somehow i do. I've gone deep into it.
1993,1994,1995, 1996 (proto 97')
Cosworth helped a lot with the engine and the CNC heads they had used ;)

My only alternate is the GM V6 !
(Y32SE)
I wouldn't be using a B204 either..i could go for a C20LET, but that's the engine on my daily car, and i would like to work on something different.
The Let and B204 would cost me about the same over here...nowhere near 300gbp.
Maybe something like 1500-2000e for each one of these ?

I can get the 6VD1 for 700-800euros including ECU and loom ;)
On the isuzu forums, they are talking about new aggresive cams, throttle body (too small 60mm maybe?), decat with new exhaust and remap, can easily do 260-270
Keeping it N/A is my idea
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Offline Joest DTM

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #7 on: March 07, 2015, 22:44:22 PM »
ps: chopping the car and fitting the trans are my only issues
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Offline tommygards

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #8 on: March 10, 2015, 03:22:27 AM »
A common issue is the placement of the steering rack? Obviously other people before have got around this issue but I havn't investigated how they did it. It might be worth getting an idea as this seems a common sticking point.

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #9 on: March 11, 2015, 11:27:46 AM »
A common issue is the placement of the steering rack? Obviously other people before have got around this issue but I havn't investigated how they did it. It might be worth getting an idea as this seems a common sticking point.

Thanks :)

Yeah, it is an issue.
I am currently looking into it..before chopping the floor for the transmission tunnel.

Mickey's garage from PL, for the inline C30SE rwd Calibra they did, looks like they have used the Omega A steering box (instead of the rack)
 It is a good idea, but needs fabrication to make it fit. Also the 6cylinder is a bit huge

All of the rest i've seen are still using the original Calibra steering rack and position, as you can see 2/3 of the engine still hanging in front of the front axle. Which i know it is not right...
But still, even this way the trans will be located behind the front axle...i assume it cannot be worse than the stock set-up of the car ?! lol

V6 engines are a bit shorter than 4cylinder ones as well.

Early DTM Calibras (1993 Cosworth_C25XE powered ones) still had the steering rack in the original position...maybe a bit higher?
Looks a good alternative to me, check out the last photo of the link

http://www.dtm-calibra.de/html/dtm_calibra_93.html


(ps: Nice project you have, i am also watching. )

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Offline Joest DTM

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #10 on: July 08, 2015, 09:33:02 AM »
Looking forward to upload some photos of the 2nd car that i have bought and the mess that i have done :/

what do you guys use?? Photobucket?
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Offline ALZ1307

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #11 on: July 08, 2015, 10:54:50 AM »
Yeah, you'll reach or go over the size limit etc pretty quick otherwise :)
Lewis Hamilton said that winning his first race felt better than having sex. Kimi's reply to that was, Maybe he never had sex.

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Re: Calibra 3.2 V6 in the works, opinions needed
« Reply #12 on: April 21, 2016, 01:57:00 AM »
I am back...car's still here...

and..finally, parts are here :D

6VD1 arrived...plus all the extra parts needed to make it work (ecu, loom, car keys, throttle body pedal sensor etc)


I am looking for a transmission to fit this one engine block.
Bolt pattern for the bell is GM60...
AR5 from OPEL GT B they say it fits...but what other options do i have??

**btw, the ISUZU engine is a monster. I am wondering if it will fit with the induction mounted
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