dumone wrote:awsome-thanx Ian, thought something like this might turn up😀
can't wait to see what 1stcarbug thinks of it.:P
oohhh i can see it and certainly hear it (real player 10)
forth gear is nice and tall, that fourth in the fith position with a different ratio forth would be way cool! not that pushing it along seems toooo hard.
thanx again ian.when can we expact more boost?
Yes 4th is pretty tall being a 1.04 with a 3.88 diff and the 17" wheels, but the problem is more to do with the 1.48 3rd gear. The box is really designed for a naturally aspirated engine that revs past 7000. I'll probably be changing into 4th on the 8th mile when I go racing with this tranny. For the 1/4 mile 4th is good because at about 5700 rpm i'll be doing just shy of 200k's which will mean 1/4's in the low 12's when in street tune and trim.
I'll be looking at something in the 1.3's to replace 3rd when I get my new tranny.
As for more boost, 10-12lb which sill be the max for the street will see tyres being fried in 2nd in straight line acceleration. With this engine i'll be using electronic boost control, and will be experimenting with boost at RPM and/or boost at road speed to ensure I don't loose traction.
Max boost with this engine is about 18lb. I'd need an alloy case, 10mm head studs, the new gt2832-370hp turbo (arriving soon) and a flanged crank to go higher than that. I didn't build it to make silly hp figures though, its meant to be very drivable and reliable. I can cruise at 60k's in top gear at 1800 rpm and its happy to do that all day, but it still makes great power from about 2400-6000.