BromleyBoy
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Registered: 5th Apr 03
User status: Offline
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anyone else got one?do you get a big flat spot when you floor it and feel it doesnt wana rev?anyone got any ideas its not too bad on choke but still not puka and i no theres no adjustment at all possible on the mixture not even vaux. anyone think it'd be owrth putting a carb on?would it be hard? cheers for any help james
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Rob H
Member
Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
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Dunno, what yo umean by flat spot and doesnt want to rev.
Mine doesnt have any flatspots, its just slow  Seems happy enough to rev though, just takes its time about it 
You could put a carb on it, but it'd be more trouble than its worth really, as you'll need to junk your standard loom and get one that opnly controls the ignintion. You'll also use lots more petrol, and may have trouble come mot time with emmisions. Also the cat wont like the carb  .
Just stick with it, or start saving for a bigger engine/ new car 
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corsa_godfather
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Registered: 6th May 03
Location: Greenock,Scotland
User status: Offline
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drill your air box m8.drill holes underneath the filter dont go above it.drill lots on left side(against wing) front left and under left.drill lots and lots of holes with 10 -14 mm drill bit that will solve it.let me know how u get on
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MattyB
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Registered: 13th Nov 01
Location: 118.5bhp :D
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Are u runnin an induction kit mate, as it caused big probs when i fitted one to mine.
Matt
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John_C
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Registered: 5th Mar 03
Location: South east, Bromley
User status: Offline
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my whole engine is a flat spot
setting up a carb would b 2 much aggro without much gain
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richardostreet
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Registered: 8th Jun 03
Location: Redditch, Hereford and Worcester
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I have got a 1.2 8v and i agree loads of flat spots Are there any downsides to drilling your airbox?? what are the best mods for this crappy engine (besides an engine transplant although required).
Rich
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CorsAsh
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Registered: 19th Apr 02
Location: Munich
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i cant remember who does the kit, but theres a nitrous system available with a variety of jets. Basically, you can get a big tank of nos, run it thru fine jets, and it just gives the same effect as driving a higher powered car. could be more hassle and expense than its worth for this engine...
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corsa_godfather
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Registered: 6th May 03
Location: Greenock,Scotland
User status: Offline
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no downsides to drilling airbox m8.jus make sure it aint on the engine side.i aint got any flast spots no more after doin it 2 mine
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
User status: Offline
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quote:
Originally posted by richardostreet
I have got a 1.2 8v and i agree loads of flat spots Are there any downsides to drilling your airbox?? what are the best mods for this crappy engine (besides an engine transplant although required).
Rich
Total Vauxhall did a tuning guide for this engine a few months back, there car was 44bhp stock. They put on a Blydenstein B+ cylinder head, a cast iron Corsa Sri 8v exhaust manifold, a janspeed sports exhaust and a kent cams adjustable pulley. From that they got 57bhp @ 5500rpm. Torque went from 63 to 69 lbf.ft Doesnt say how much they spent tho.
Could probly just swap the whole engine for not a lot more.
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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is the 8v sri exhaust manifold different to standard one?
if so what different?
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and-m
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Registered: 5th May 02
Location: Liverpool. Drives. Skud vRS.
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Doesnt seem anything special, just a 4 into 1 manifold. Perhaps the bore is a little bigger due to the size of the inlet/exhaust.
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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can i have yours?
think ill get one of them and a cat back system
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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The 1.2 8v is a single downpipe of 47mm, The SRi 8v jobbie, from a late spec Nova, Doubles the downpipe diameter to two outlets at 40mm each. 6-7bhp easy
Its not a straight swap tho, it will need some cutting and welding to make it mate up with existing exhaust.
Courtney sells them pre-prepared at £195 each
or the expensive performance type, Lexmaul or Mantzel sell a tubular 'bunch of bannanas' item, £315.
[Edited on 14-07-2003 by Adam_B]
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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so would hetting a sri late spec nova manifold make my 1.4 8v go a bit quiker?
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Adam_B
Member
Registered: 13th Dec 00
Location: Lancashire
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Dunno, depends whats on it already. worth checking tho if u can get a cheap un!
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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well mine is a 1.4 spi 8v
so a better manifold cant hurt can it?
time to phone some scrappys i think
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
User status: Offline
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just make sure it has a lambda probe provision in the upper cast section 
God, i sound well clever tonite can u tell im reading it from a magazine
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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ive got the same mag total vaux but cant be arsed reading it the words keep movun round
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and-m
Member
Registered: 5th May 02
Location: Liverpool. Drives. Skud vRS.
User status: Offline
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Erm on the Corsa SRi 8v there isnt a double downpipe, wonder why the Nova is different?
[Edited on 14-07-2003 by and-m]
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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dunno am gonna get one thou
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