if the engine is out what performance mods would you do? - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

17th Jul 03 at 10:40

basically im looking to get a 1.7 td (isuzu) from a cav/astra
i have access to pretty much every machine for engine remanufacturing, so as the engine wouldnt be in a car i thought i would do some stuff to it.

so far,
1. rebuild as much as poss and recon it.
2. get the injectors cleaned
3. gas flow the head (just simple stuff, not bigger valves etc..) plus skim it etc..
4. fuel pump and boost tweek
5. grind out the lumps from both manifolds.

any other suggestions?

would also be putting in a performance clutch into which ever gearbox i decide to use.

stuyw

Member

Registered: 15th May 02
Location: North West Drives: Rev3 MR2 Turbo
User status: Offline

17th Jul 03 at 10:44

change water pump/oil pump
cambelt
why not add some cams?

Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

17th Jul 03 at 10:46

dont think u can get cams, even if u can not really worth the expence as u can only run mild cams on turbo cars

yeah changing pumps and all belts is a good idea. will do all gaskets too.
and give it a lick of paint

Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

17th Jul 03 at 10:48

suppose my uncle could slightly reprofile it.

had thought bout slightly lightening the fly wheel, im not convinced its a good idea too on a diesel though.

[Edited on 17-07-2003 by Kris TD]

miles

Member

Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline

17th Jul 03 at 10:49

Get the bottom end balanced. Lighten the flywheel. Deseem the rods. Match the inlet and exhaust manifolds to the head. Flow the inlet manifold.

Tap the sump for an oil temp sensor/gauge?

Lower the CR?

Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

17th Jul 03 at 10:51

just looking in the diesel haynes, the 1.5 has a thinner head gasket than the 1.7, therefore that may lower the compression ratio if im thinking right.

miles

Member

Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline

17th Jul 03 at 10:56

if its standard then it will either have a lower CR as standard, or the head will spaced differently from the block to make the same cr as the 1.5

Daimo B

Member

Registered: 20th Mar 00
User status: Offline

17th Jul 03 at 10:58

Exhaust/Inlet flowed to match the head.
Cams etc.
Lighter flywheel
Performance Clutch

Kris TD

Member

Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline

17th Jul 03 at 10:58

yeah both are 22:1

noticed, the 1.7 doesnt rev as high as the 1.5.