hey Wayne, how about some specs on your engine , Trans, & weight of your car? Is 105 mph your best? Not many good Type 4s out there.

105mph is the best that the car has run . It does a 1.6sec 60 foot and 88mph at half track then runs out of legs . As I had mentioned previously it is geared and set-up for hillclimbs only . The car weighs 800kg and is balanced front to rear 39/61% , much better than stock . It still runs a swing-axle transmission with 4.125 ring and pinion ,albins gears 4.11 / 2.21 / 1.59 /1.17 . a ZF limited slip diff , berg chromemoly axles and side plate strengtheners . Still using the stock vw transaxle housing though . Wheels are 16"x11.5" rear and 15"x10" front with avon hillclimb slicks . Engine is 2842ml . 82mm fullcircle bernie bergmann crank , chev journal chromemoly H-beam rods , JE 105mm forged pistons , total seal rings , cam is a modified special grind 320degree .534" lift , berg type-1 valvetrain equipment , origional kombi heads modified 48mm intakes and 38mm exhaust (extensively ported) feeding the avgas into the engine is quad throttle bodies in IDA pattern with microtec injection . Dry-sumped for high speed cornering and transfering drive to the transmission is a stage-4 kennedy ductile 3000lb pressure plate and a berg 3-puk disc .:vader

Thanks for responding Wayne, lots of good info there! Perhaps some other people can list their specs..including weight and best MPH ...Blacktop dynos rule!

wow sounds hectic! what HP you making at the wheels? dry sumps the way to go!!

image problem sorry .:cry

A nice HP reading you have!! will be balistic with the turbo! The tractive effort is huge!! i was pretty happy with my 900lbs. will be good to see it race again

alex

So Wayne, all in all a pretty cheap engine (not).
Well done on a top motor.
It has been pretty reliable I guess.
With that much torque , does it tend to snap out of control?
I imagine a squirt of the throttle at the wrong time would see you looking back at where you came from.

I find with the injection it is very smooth and controlable to drive and having so much sticky rubber on the road tends to keep everything pointing in the right direction , however there has been a few incidents where things have gone just wrong !! at a hillclimb meet in grafton 2003 I went out in practice to find that the trans had started to jump out of 2nd gear . I made a very wrong decision when racing started , and that was to hold it in 2nd through the tight windey section of the race track and steer with one hand . I hadn't counted on the bug leaping sideways as I exited this section jumping on the throttle and couldn't pull enough lock with one hand to correct it . The bug ploughed a tyre wall then crossed the track and made heavy contact with another , not happy to damage just one side !! The results were , rear bumper torn off and broken in half -- both rear guards torn off -- both running boards broken -- engine lid broken -- minor impact on r/h thottle bodys -- 3" exhaust totally flat at middle of system -- both rear axles bent . With the help of a couple other competitors we did enough repairs to the bug to get it back on the track , set another new track record and won the 2litre to 3litre sports sedan class beating 3 rivals . not a bad effort ey!!:blah:blah

Big effort, but justly rewarded.!

Top motor, I am in the process of putting a t4 into an oval (2.5lt) Where do you go to get decent hp out of your heads?
Cheers
Graeme

when you were using the 2.5l, you were using the standard crank were you? what mm stroke was it?

are 105mm pistons the biggest you can fit in a type 4 case?

Cheers for the info! I will be stripping my t4 motor down a little later in the year and converting it to injection, so i will probabbly contact you about 'cleaning-up' the heads, and what the best cam, compression etc would be, if thats ok.
:thumb
Graeme