hi im interested on getting some ideas together for people wishing to biuld an aircooled t4 for their bay busses as there is already a section for water pumpers please refrain from posting the subie,mazda,rover,toyota arguments any recomended builders appreciated.we start off with a worn stock carburetted 1970cc motor.
id reccomend richard holtzs cams i have his mild cam in my t4 motor and its good. im also a fan of the stock twin carbs as they give good performance for what they are
supercharge it! draw through toyota super charger setup with i guess a cam shaft to suit, balanced crank and maybe reduce compression a bit and possibly twin ignition... thats my next build up soon as i get time and $$$
i was actually thinking of a 2056 ie taking the hardened barrells out 2 ml dont know if i can getcarl smith pistons n rings this size (95's no prob)getting peter liddle (bris)to rework a pair of 1800 heads the cam had me stumped i know w.penrose used a pauter k8 but that was in a beetle twin 44 webbers and a set of raby tangerine headers anyone know whos doing tuned exhausts in oz for t4
stans engine sounds sweet might try n pry some valuable info from him any pic's of the twin plug set up anywhere???
main points that i can see for the t4 are
1. head work better flow
2. cam work the most important aspect according to my reasearch of jake raby
3. exhaust stock headers are restricrtive
4. carburetion t4's are under carbureted
Craig Torrens6 times Australian, 7 times State Hillclimb Class Champion
go to STF and search ,there is a lot of info regarding 103's but its generally agreed that they dont work in a bus,not so bad in a light beetle:beer:beer:beer
Don't argue with an idiot; people watching may not be able to tell the difference.
Whatever you do, DON'T use bigger cylinders than stock. Big-bore is great for Beetles which are light-weight cars, but kombis are big and heavy with lots of wind resistance: big-bores won't last long under that kind of load because the walls are too thin. Therefore, if you want more capacity than stock 2L you need to stroke it, but that can be expensive.
barls wrote:id reccomend richard holtzs cams i have his mild cam in my t4 motor and its good. im also a fan of the stock twin carbs as they give good performance for what they are
when you say "mild" do you still have the cam card ie specs for the cam you have????can you pls post
