gearing is KEY.... check out the VW Gear Chart that i made up.
I don't know what your rules are but if you want to be bad ju ju for them this is what your build should be...
9A Bottom, JH Head engle DG550 cam has 102 center ( solid head btw) GP tranny,
Go with TT 42mm intake 35mm exhaust TT adj timing gear to zero it out ( use flat peice of metal then measure on the top of cylinder 1 intake exhaust with tape measure make sure its the same distance on each side to the top of head)
Holly 350 or 500 with 68+ size jets wouldn't hurt to throw lighter pistons in because the pistons in a 9A are heavy and the poor rod ratio doesn't help, if you want some security throw in some good h beam rods IE Carrillo or Scats ( i run scats cause i'm a cheap bastard)
Oh yeah with this cam you must run under bucket shims and grind out around the bucket's so the cam will pass.
And for the love of god do not buy a high volume oil pump your asking for alot of trouble with it.
Oh and if you run the 9A you know the oiling hole to the head.... Plug it and make it alot smaller these engines at 8k+ (which i hit 1/4 way down the straight) Pump all the oil out of the oil pan and can't drain back fast enough... If you need to have your crank turned make sure to get them to turn it 11 under and get 10 under bearings loosens up the motor plus more oil for it to ride on..
I was running 83.5mm postive decks wiseco's but i whent to a 9.1 wiseco which runs around 13.4 compression with the jh head it runs better with the small dish in them its alot freeier feeling..
With this setup i promise those cars would get lapped by you.. and the bonus is it still looks stock besides the TT gear =P ( i run Super pony dirt so this is all legal for me or as most call it mini mods)
And if you can't run a big header grab a corrado g60 exhaust and modify it a little to fit its not as free flowing but its better then a normal exhaust on a scirocco or rabbit.
Yeah i run a Scirocco II
later guys trying to get my beast back together for the KMSA event this week ( don't buy the high volume oil pump trust me two new oil pumps 2 complete failures including the first time locked the intermediate shaft broke the belt bent every valve in the head)
Here is a link to photos of the progress on my scirocco racer;please take a look & tell me what you think:
New mission for the old cars. [IMG]http://gallery.oracool.net/v/album82/protech/autox/max_++topline+009.jpg.htm
wont load the pic.
Last edited by flyinglizard; 09-10-2011 at 11:57 AM.
Hey Junk, Iwill take a look next week. I have the 2 Chumpers running the Sept 24 race. Gotta finish the watered cooled brakes and swap all of the axles, front bearings etc. One car is done the other just went inside today.
Alittle slow here. last weeks pic,
Gapless rings,005 PTW clearance. Some compression, good cam, 1.8, 100% steel body so far with 100% glass. About 40# over right now. @ 1940 empty.
locked diff, , 3mm toe out rear, 550 front springs, 350 rear , no bars. Goodyear SRF tires @36# PSI front 40 PSI rear .
The little hoosiers are 2 sec lap faster@ Sebring, but these wil work @ Daytona @ 40psi and the car should roll past the Honda by 8mph. Ihope.