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View Full Version : twin 40's or 45's


corsa-xe1
22-07-09, 10:44 PM
whats best on a 2.0 8v?

what are they like to live with?

whats the gains?:thumb:
CoolTiger
22-07-09, 10:46 PM
ive only seen 45s on 2.0 8vs so id guess them
Adam
22-07-09, 10:51 PM
Both will "work"
corsa-xe1
22-07-09, 10:55 PM
yep but whats better?

also will 45's jetted for a xe work or just over fuel?
let_nova
22-07-09, 11:02 PM
if there "jetted " for an xe cant see them over fuelling. they would only overfuel if jetted for over a 2ltr?
corsa-xe1
22-07-09, 11:04 PM
ok was just thinking that a xe is more bhp and 8 more valves so would be jetted different from a 2.0 8v?
let_nova
22-07-09, 11:05 PM
probably.
corsa-xe1
22-07-09, 11:06 PM
kool, lol i havent a clue!!
let_nova
22-07-09, 11:11 PM
buy my 40s.
philip
23-07-09, 07:32 AM
40s will work but any further mods and top end they WILL struggle.

45s are more suited but depnds on what other mods you plan
Stuart
23-07-09, 08:05 AM
and its irrelevant what they were jetted for, you NEED a proper rolling road setup. Otherwise you will bitch about how crap carbs are like all the other numpties who dont bother getting their carbs checked over and setup right
philip
23-07-09, 09:04 AM
ive had that just a lad saying they need jetting all the time and go out of sync. they dont if done properly. carbs are actually very good for what they are/do.
Stuart
23-07-09, 10:05 AM
ive had that just a lad saying they need jetting all the time and go out of sync. they dont if done properly. carbs are actually very good for what they are/do.

agreed

the biggest problem is not setting the throttle pedal/spindle travel right and then bending the spindle which causes all kinds of havoc