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Author turbo 8v or 16v?
calidus
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Registered: 27th Oct 02
Location: Lincoln
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   18th Mar 04 at 11:40   View User's Profile U2U Member Reply With Quote

reading about carnoisseurcraig and his 1400 turbo makes me want one!!! lol I am just wondering whether to track down a x14xe and rebuild it while I buy the turbo conversion bit by bit or whether to track down a corsa sri or nova gsi lump and turbo an 8v, think it would be a better place to chuck my money rather than leather interior,loadsa ice and full irmscher kit, mainly due to me not wanting to shell out on painting and waitinh on stuff, dont matter what engine I got for, it will be worked on in my spare time-just wondering which way to go and wot turbo would be best- courtenay wud pull my pants big time wouldnt they?
whitter45
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Registered: 15th Nov 02
Location: Norton
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18th Mar 04 at 11:51   View User's Profile U2U Member Reply With Quote

16v unit would be better to turbo i would have thought
Liveforever
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Registered: 11th Mar 04
Location: Hertfordshire
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18th Mar 04 at 11:57   View User's Profile U2U Member Reply With Quote

If you want more power go for the 16valve, its more tuneable etc

an 8v however is still gona be good and if anything goes wrong its gona be cheaper to fix.


but if you treat a new turbod 16v engine with respect it will be sweet.
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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18th Mar 04 at 12:04   View User's Profile U2U Member Reply With Quote

the 8v is gonna stand up to more abuse than the 16v, simply because it is a simpler design and you are gonna have less problems, and there will probably be quite a few teething problems.
calidus
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Registered: 27th Oct 02
Location: Lincoln
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18th Mar 04 at 12:17   View User's Profile U2U Member Reply With Quote

Ooooooh decisions decisions! wish I bort that brand new corsa sri engine on ebay now
littletriad
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Registered: 22nd Jun 03
Location: Oldbury, West Midlands
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18th Mar 04 at 12:24   View User's Profile U2U Member Reply With Quote

Well I have a 1.6 8v in a corsa and I don't know weather to have a 2.0 16 or to turbo mine
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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18th Mar 04 at 12:55   View User's Profile U2U Member Reply With Quote

I cant see why the 8v would be any more robust. Parts aren't really all that much more expensive, 16v is much better for power.
carnoisseurcraig
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Registered: 4th Jun 03
Location: Inverness
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18th Mar 04 at 14:10   View User's Profile U2U Member Reply With Quote

it wont be any stronger. they use the same bottom ends.

What i would do is go for the 1600 and turbo that. Far more scope for power.

And change the inlet manifold
wheely cheep
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Registered: 18th Mar 04
Location: aberdeen
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18th Mar 04 at 14:21   View User's Profile U2U Member Reply With Quote

i too was thinking of the same thing. a 1.4 turbo.

would be very torky

1/4 mile, it would desimate all
carnoisseurcraig
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Registered: 4th Jun 03
Location: Inverness
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18th Mar 04 at 14:52   View User's Profile U2U Member Reply With Quote

we'll find out soon. he he
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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18th Mar 04 at 15:01   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by wheely cheep
i too was thinking of the same thing. a 1.4 turbo.

would be very torky

1/4 mile, it would desimate all


No it wouldn't. Would need a very serious spec to be quicker than a tb'd one.
carnoisseurcraig
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Registered: 4th Jun 03
Location: Inverness
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18th Mar 04 at 15:14   View User's Profile U2U Member Reply With Quote

i can only see my car pushing 120 -130 bhp at the fly
Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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18th Mar 04 at 22:38   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by carnoisseurcraig
it wont be any stronger. they use the same bottom ends.

What i would do is go for the 1600 and turbo that. Far more scope for power.

And change the inlet manifold


I said it simply because there is more parts to go wrong in a 16v
A_Venables
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Registered: 6th Jan 04
Location: Coventry
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18th Mar 04 at 23:44   View User's Profile U2U Member Reply With Quote

There was a 1.4 8v Corsa SRi (C14SE) with a Courtenay turbo conversion in Total Vauxhall a while ago, he had lots of mods done already but when TV drove it they thought it was quicker than a 2.0 valver, they estimated around 150bhp, the standard conversion good for around 115-120bhp, You should also gain for handling as the turbo'ed 1.4 should not way as much as a valver, and with it being the 8v it has the low down torque to get you of the line quicker untill the turbo cuts in, I have the C14SE in my Corsa and its much quicker than any 1.4 16v of the equivelant spec of the line up untill 50mph at least, before you lot rubish my veiw have you ever compared a 8v MPI Corsa and 16v side by side, I have and unless you tune it with powerboxs, etc the 8v will walk it!
carnoisseurcraig
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Registered: 4th Jun 03
Location: Inverness
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19th Mar 04 at 09:24   View User's Profile U2U Member Reply With Quote

i have in with my old engine.

Both had the same mods ish.

filter, exhaust etc.

i whipped him. every engine is different and it all depends how well you look after ur engine. But i have to say my old 1400 16v would never be beaten by an 8v
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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19th Mar 04 at 16:52   View User's Profile U2U Member Reply With Quote

my old SRi 8v (R.I.P) cud almost keep up wiv a m8s GSi, that no bullshit, rob u saw it, drove it etc
Tom
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Registered: 3rd Apr 02
Location: Wirral, Merseyside
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19th Mar 04 at 16:55   View User's Profile U2U Member Reply With Quote

'Niven' sum lad that used to post on here had the c14se turbo'd as did girglet for a bit, no reliable turbo kits for them so have big probs
calidus
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Registered: 27th Oct 02
Location: Lincoln
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19th Mar 04 at 18:27   View User's Profile U2U Member Reply With Quote

yer it did keep up with it matey- that sri was quick- full stainless cat back etc, think it was a case of ur sri 8v was well looked after and healthy n the gsi 16v was a lil poorly, but even after all that, its impressive
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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19th Mar 04 at 18:40   View User's Profile U2U Member Reply With Quote

No 1.6 8v will keep up with me

TV aint going to say its slow are they? I remember the feature though, the position of the torque on an 8v is nothing in comparison to the power and torque advantages of a 16v. Low down torque = harder traction.

Do you people really leave the line at 1000rpm?
A_Venables
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Registered: 6th Jan 04
Location: Coventry
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19th Mar 04 at 18:58   View User's Profile U2U Member Reply With Quote

Very true, but you dont want to be reving to 4,000rpm every time you take off either, you'd have no clutch left I had a race with a 16v SRi not so long back, saw it at a cruise before we raced on the road, he had same mods as me, upto 70mph I lost him very easily, he caught up when I got stuck in traffic, took it up to 110mph (on private roads of course) And from 70mph we were neck a neck, not impressed myself, seems Vauxhall did to good a job of restricting the power with the long intake, granted when the expensive mods are done the 16v will leave me behind tho
Bear in mind the power figures and torque figures arent to far off, the 16v also has more weight, although its next to nothing and the 8v seems to rev quicker compared with the 16v, I have found out from the rolling road results that my 8v has a huge power and torque flat spot between 3,500 rpm and 4,500rpm, if I get rid of this (it built in by Vauxhall for low fuel consumption) then it should be quicker still.
Born_corsa02
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Registered: 20th Dec 02
Location: Essex
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19th Mar 04 at 23:41   View User's Profile U2U Member Reply With Quote

bollox he obviously couldn't drive a 1.416v corsa would piss on an 8v simple as the 8v engine was quick in the nova but in the heavier corsa was poo

 
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