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20l let tuning

749 views 11 replies 8 participants last post by  the_fbi 
#1 ·
hi all can anyone give me some advice on engine mods on a 20let lump ie what you would reccomend or dont do mods.just about to rebuild it i was going to lighten and ballance crank and flywheel apr con rod bolts gas flow the head. Im a bit stumped on what to do about pistons and head gaskets someone told me to machine 1mm of pistons n run stupid boost but this sounds dodgy to me?? im new to turbos and know very litle about them so can you all give me some advice. I also have a nos kit to run on it which i have been told not to chip my car with it due timing will be too advanced for the NOS is this true???help im stumped need a prod in the right direction please
 
#2 ·
id advise a steel head gasket from regal £85 and itl keep your power plant happy!

go for eds and get that boost wound up!but make sure you get a big intercooler too

go for some bigger cams too but id seriously leave the pistons and rods alone unless you bolt that nos on cos then your need um...
 
#3 ·
thanx mate will be looking into it going to have the intercooler sorted anyway its going into the astra mk3 with bigmouth front bumper so should fit nicly behind. will check out regals site about the head gaskets m8 still need a NOS expert for some advice dont want to blow it up in seconds
 
#9 ·
#11 ·
azza69 said:
id advise a steel head gasket from regal £85 and itl keep your power plant happy!

go for eds and get that boost wound up!but make sure you get a big intercooler too

go for some bigger cams too but id seriously leave the pistons and rods alone unless you bolt that nos on cos then your need um...
Regal Charge £25 for a steel head gasket, just fitted one recently and it was real good quality, see link below: :D
http://www.regal-shop.co.uk/asps/ShowDetails.asp?id=1621
 
#12 ·
Damn, I thought there was some Regal bashing about to happen and coolamasta just stopped it all!

Is that upgrade worth doing if the car's currently happy? Only looking to run a Frontera intercooler, 50mm tophat and possibly phase 2. Still worth taking the head off for that gasket change?
 
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