Thread: turbo gurus (guri ?)

Originally Posted by discowhite

go buy a copper de comp plate from ACL.
your comp ratio will be closer to 8.0:1
then bolt a T04 onto it. these are as common as and should be fairly cheap.

cheers phil

ps is it a blue/black 202??
the con rods are beafier in the blue/black. what everybody calls ''starfire'' rods.
and you better look into a head stud kit! the std head bolts wont be up to the task.

hey Phil,
its an EFI black, acl 7cc dish pistons, zero decked and semi blueprinted - .045 quench, polished chambers, cc'd to within .5cc, angle shaved, running the black efi manifold, efi gas cam. Its going to go hard as is - but similar builds with a turbo are really puting out some decent HP.

Originally Posted by crossy

what do you guys think of this sort of turbo manifold ?????
looks home made ?

http://cgi.ebay.com.au/HOLDEN-202-TU...QQcmdZViewItem

Pressurizing the carburettor is NOT the way to go. Suck through, not blow through.

Originally Posted by Brian Hjelm

Pressurizing the carburettor is NOT the way to go. Suck through, not blow through.

if you are running lpg , and i did hear that mentioned the carby will only be used as a throttle body

Originally Posted by crossy

thanks Brian,
the spark electrics are already sorted. I'm already running dizzyless coilpack ignition and map sensor ecu good for 20psi. 12 x 12 spark tables.

Water injection may be an option - mmm.. can use the old 70L petrol tank to hold the water .

what do you guys think of this sort of turbo manifold ?????
looks home made ?

http://cgi.ebay.com.au/HOLDEN-202-TU...QQcmdZViewItem

Looks a bit dodgy and a poor backyard job at that why not use a rb30 or a rb25 nissan engin insted of the 202 ..

With chev rod bolts a nissan rb 30 std bot end will handle about 500 horses and a lot easier to turbo ...

As for the manifolds in the link the exh looks like someone bodged it up outa an old set of extractors and the inlet pipe looks like somthing youd find in a plumbers scrap pile

Cheers

chris

Originally Posted by lokka

Looks a bit dodgy and a poor backyard job at that why not use a rb30 or a rb25 nissan engin insted of the 202 ..

With chev rod bolts a nissan rb 30 std bot end will handle about 500 horses and a lot easier to turbo ...

As for the manifolds in the link the exh looks like someone bodged it up outa an old set of extractors and the inlet pipe looks like somthing youd find in a plumbers scrap pile

Cheers

chris

I've allready done a gearbox conversion for the 202.
I'll be happy if I get 150rwhp @ 4000.

hey Phil,
its an EFI black, acl 7cc dish pistons, zero decked and semi blueprinted - .045 quench, polished chambers, cc'd to within .5cc, angle shaved, running the black efi manifold, efi gas cam. Its going to go hard as is - but similar builds with a turbo are really puting out some decent HP.

ive got a nice 202 methanol engine ready for my EH project. good for 200hp (moroso)
red block, -.030'' deck, 14.6:1 comp ratio, wiesco pistons, floating pins and pin buttons, extreamly lightened knifedged blue crank, shotpiened/fluxed blue rods, ARP bolts every where. head is bloody huge, cams secret grind, almost .580 lift, 1.5 and 1.65 roller rockers, guide plates
well worked over sized 500 holley.
billet dizzy and ICE iginition.
sounded sweet at 8200rpm.

great speedway motor, will it be too much for a road car?? i think so

cheers phil

-.030" deck = .015 piston to head clearance JFC , any
problems with that at 8500 revs?
I'm guessing 200hp would be a very conservitave estimate. Sounds like a good donk for a LJ torrie.