diddon
Member
Registered: 23rd Apr 02
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If I did the following to a Corsa C 1.8 SRi what gains could I acheive
Cams
Throttle bodys / inlet manifold
Cheers
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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all depends on cam profile, rev limit and ECU map....
any thing from std to 200+
how long is a .....
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diddon
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Registered: 23rd Apr 02
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true, just a rough Idea
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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well.... give me a rough spec 
Will the rev limit be substantialy increased? (needing new rods, head parts etc)
Will it use standalone management?
Id say you'd be looking at about 160+ for a pretty basic setup (mild cams, mild rev limit, mild mapping)
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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If the 1.8 is based on the small XE's then TB's and a good exhaust manifold with ARPs should see in the region of 170ish
But getting past the ecu issues though? Like a 2L in a corsa C standalone would cause other problems surely? (just thinking out loud)
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topshot_2k
Banned
Registered: 1st Dec 03
Location: Northampton Drives: Pug GTi-6
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after what sort of rev limit increase should you start thinking about new rod bolts etc coz mines unichipped (maybe raised revs) not sure yet but shouldnt think anymore than 7k??
[Edited on 08-10-2004 by topshot_2k]
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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7 is ok on std bolts, but for £60 the piece of mind is nice. as far as I'm aware an unichip can't raise the rev limit it just maniupulates the signals the ecu recieves rather than the data held on the eprom.
Also I think you'd have problems with the std map on the ecu not being able to cope with TB's in it, but you migh tbe able to get away with it but using bigger injectyors and altering the whole thing to suit. Also light throttle would be diffcult manipulating the std ecu as the difference betwen 0 and 0.5% throttle with TB's is massive in air flow terms. It's probably easier to stick a low pressure turbo on it and let the unichip do it's work with that and run a 5th injector.
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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iv been at 7200rpm for a while now, and use it often lol, on standard rod bolts and not a single problem!also uni chip cant raise the limit, u need to buy a new bit which unichip can supply
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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Yeah 7200 is meant to be the max safe limit. But with TB's on you'll find that you will happily go to 8k, which is the limit of the pistons, then 8250 for the rods.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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broster ..... its not really a analogue problem... 
If they go, they go....
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by Adam Kindness
broster ..... its not really a analogue problem...
If they go, they go....
indeed i know this, id feel happier getting some new bolts in there but cant afford to have the car off the road or afford to get it done right now. if i was building my engine again id get it done was foolish not to when the engine was put in and the rest of the goodies bolted on
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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why it only take a couple of hours,
manifold off, sump off, drill out.
Job done. do it next oil change. then you can up the limit to 7950 hehehe
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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quote:
Originally posted by j1400
why it only take a couple of hours,
manifold off, sump off, drill out.
Job done. do it next oil change. then you can up the limit to 7950 hehehe
may do it, but ill be honest, im bloody lazy lol! 7950 limit does sound sexual tho lol
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