VauxSport - Vauxhall advice and chat forum

orange peel · *VS Site Photographer* Joined: 30 Apr 2007 Posts: 609

I've got a 2l 8v out of a Calibra which is in very good condition. Was thinking of getting my bro to know together an XE'd Corsa but wanted to see what the general feeling of the 8v was.

I know straight line performance wont be as good but what about cornering etc. Do the 8v's weight a lot less?

Also, any tried and tested ways of squeezing some more power from them?

b32-v6 · Joined: 29 Jun 2009 Posts: 216 1998 Vauxhall Corsa

i think a little 8v would be an ace little project ! there will be plenty of ways of getting more power out them turbo/carbs/tb's/nitrous/supercharger !

i think there should be more people that take on the old 8v's as there a really good engine i just wish i would of kept my old gte and tuned the shit out of that insteed of the corsa Sad

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orange peel · *VS Site Photographer* Joined: 30 Apr 2007 Posts: 609

Just shooting ideas around..

The standard engine has 130BHP, roughly...

So, what would I realistically be looking at with either a turbo or supercharger conversion?

b32-v6 · Joined: 29 Jun 2009 Posts: 216 1998 Vauxhall Corsa

i have seen a turbo 8v at just short of 200bhp but i dont know what he has done to the engine other than turbo !
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Blythy · Joined: 30 Nov 2007 Posts: 159 Location: kings lynn,norfolk

if its from a calibra i should think it will be a C20ne,there around 112bhp iirc

Rich_j_Williams · Posted: Fri Jul 03, 2009 8:42 am Post subject:

i had a 2ltr 8v in my corsa, mine was the 130bhp cav sri one.

it was ok. can use all xe conversion parts just dont need the powercap iirc.

but i was not overly impressed with it, was quite quick but seemed flat in comparison to the xe.

i reckon if your wanting to tune, xe would be better srarting platform, but if you have all the bits now and an 8v engine, stick it in and if you dont like it then you have not wasted anything.

however i am not stating this as fact just my opinion, i dont really know about tuning on an 8v, but as you dont see many tuned ones and you see millions of tuned xe's and lets this may give you your answer.

nice one mate
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Davey J · Posted: Fri Jul 03, 2009 4:50 pm Post subject:

Track down Tom Stickland on Migweb to chat about 2litre 8v tuning. He tuned the nuts off an 8v on carbs years ago in a MK2 Astra. Was quicker than any of my GTE 16v's (all standard).

sbd16v · Joined: 10 Nov 2006 Posts: 2081 1990 Vauxhall Astra

AndyVauxman09 · Posted: Sat Jul 04, 2009 12:40 am Post subject: 2l 8v

The c20ne engines r good for turboing as they have a bit machined of the top of the piston a mate of mine done one and got 210bhp LOL

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b32-v6 · Joined: 29 Jun 2009 Posts: 216 1998 Vauxhall Corsa

http://www.astra-mk2.com/forum/showthread.php?t=25754

11 sec mk2 astra 8v turbo !
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keith bond · Joined: 30 Jun 2009 Posts: 3

stevenwoody · Posted: Sun Jul 12, 2009 8:32 pm Post subject:

andyvauxman geezer is right the NE is awesome lil turbo motor, Regal do a 1.7mm steel headgasket to lower compression even more then use a T3 turbo for best results. Currently building one with a T4 turbo which lags ALOT but when it boosts it fucking moves. Depends what you want the car for really personnally i just like to have a play around and drive like a cunt Thumbs Up

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I just can't do it captain i need more power

chip · Posted: Mon Jul 13, 2009 9:30 am Post subject:

The 8v will be a lot slower than an XE in standard form, and less economical, for the sake of a few hundred quid for an XE, I would go down that route personally.
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Under 400bhp makes baby jesus cry.
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Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4

orange peel · *VS Site Photographer* Joined: 30 Apr 2007 Posts: 609

I have a spare XE which needs some attention which I could use. Just thought I'd ask about the 8v as I've got one.

I'm guessing there isn't much in it weight wise?

chip · Posted: Mon Jul 13, 2009 10:49 am Post subject:

literally just a few kg from the extra cam and a bit more cylinder head, and a slightly beefier crank and rods, nothing of any real consequence.
_________________
Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)

www.totalvauxhall.co.uk

Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4

Davey J · Posted: Mon Jul 13, 2009 11:36 am Post subject:

chip · Posted: Mon Jul 13, 2009 11:51 am Post subject:

I thought best quarter he ever got was a flat or low 15, which like Rob days, is just standard GTE 16v territory, and for a lot more expense and with a lot less economy.
_________________
Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)

www.totalvauxhall.co.uk

Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4

Davey J · Posted: Mon Jul 13, 2009 3:01 pm Post subject:

Couldn't comment on his quarter mile times to be honest. Having driven that car and my standard valvers though, his was quicker, the way it delivered its power was better and it sounded mental. Agreed, not as economical, but then if someone wants to go against the grain and drop an 8v lump in a Corsa there is scope to improve with second hand parts etc. Bike carbs maybe instead of webbers.

16v lumps DEFINITELY are a better starting point in terms of power for pound. I would never argue that. I just wouldn't necessarily discourage someone from messing around with 8v lumps. Mig was prime for that a few years ago. No XE or LET, no interest generally.

chip · Posted: Mon Jul 13, 2009 3:18 pm Post subject:

I like tuning any engine as an exercise, but if its end results you want, its silly not to have the extra 8v, especially if you are on a budget, starting with a 40bhp handicap just makes it more expensive to get to any given power figure.
_________________
Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)

www.totalvauxhall.co.uk

Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4

Davey J · Posted: Mon Jul 13, 2009 4:19 pm Post subject:

That makes a good point, but then the chap already has an 8v in his possession.

If anything, it is something to tit around with until a decent XE/similar can be built or purchased.