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Twin 40's

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Old 07-03-2012, 08:11 PM
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N.Saph
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Default Twin 40's

i've a set of dellorto's on my sierra

but in 2nd when you plant the foot it kinda stutters, then gradually gains speed

can i jet these out bigger or wat can i do till get the most from them?

2ltr pinto
Newman mild road cam
skim head
new plugs an leads

would a chance in cam make much difference?
Old 07-03-2012, 09:30 PM
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CHUNKYS RS
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i would check that the pump jets are working first also on a 2.0 i think you will need the max choke size on 40s

Last edited by CHUNKYS RS; 07-03-2012 at 09:33 PM.
Old 07-03-2012, 10:05 PM
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N.Saph
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so these can be rejetted for bigger jets etc?
is there anything else i can do to get more power/torque from this car?
Old 08-03-2012, 10:43 AM
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DAN400
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get a good exhaust manifold and decent cam and vernier pulley,
but it must be timed correctly or you might as well piss against the wind,
but tbh 40s are a bit on the small side for a 2l pinto, better with 45 s imo
Old 08-03-2012, 12:26 PM
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Originally Posted by DAN400
get a good exhaust manifold and decent cam and vernier pulley,
but it must be timed correctly or you might as well piss against the wind,
but tbh 40s are a bit on the small side for a 2l pinto, better with 45 s imo

yea i agree
i've a 4 branch with a full ashley s/s system on there to

lookin for a better cam than my newman, also have a thread up here for a vernier pulley
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