Rigid_EVO single digit daily driver street/strip fighter: step 4 - 82 inches

[bitpusher]

just when you thought it was safe to go back in the water.....

i have been thinking and double thinking for the last 2 months whether helping a friend clean out his garage would be a good idea. let's see - 82" cast iron jugs, new coated and ported pistons, highly ported big bore buell heads... hmmmmm.... decisions decisions... but seriously, it really wasn't an easy decision to come to, but now that it has been made i am pretty excited.

add to this with the wicked crank job aaron and dan are finishing up right now consisting of carrillo rods, jim's pin, balanced, trued, welded and some secret sauce. getting the cases bored while they are up there as well.

while i am cutting my teeth on tuning the PFI/Turbo on the 74", i will be taking my time and building the 82" on the bench. no rushing. no mistakes.

this thread will pick up speed in the next week or so.

[mr.coffee]

Uh.....


.....wow. Gonna be a real beast, innit?

-m

[bitpusher]

yall though i was playin?? i don't play.

[Turbo Sporty 48]

Originally Posted by bitpusher

yall though i was playin?? i don't play.

So is this a "thrifty" build?
Sounds like what a real playas Sporty turbo should be built like.
How about the pistons? Anything special there?

[xllent01]

Thrifty bank account too.. Good luck on your build(s)!

[bitpusher]

actually, there is quite a bit of thrift involved..

the 82" stuff, over the past year, i kept seeing it offered real cheap to people here but nobody bit. i guess i can understand that most people, if they are going to bore cases and go big, would want to do 88"-90". So the 82" stuff has a relatively limited resale value as it is really only interesting to a racer, someone shooting for salt perhaps, who has 1350cc engine size constraints.

1350 you say?

lemme check my target list real quick like....

AMA 1350 A-PBG
AMA 1350 A-PBF
AMA 1350 APS-PBG
AMA 1350 APS-PBF
SCTA 1350 A-PBG
SCTA 1350 A-PBF
SCTA 1350 APS-PBG
SCTA 1350 APS-PBF

so let's just say that i got real interested and the price was more than right. thrift and luck are definite factors here.

sporty, the pistons mentioned really are just for race applications. they have a thermal coating on the crown to help reflect/shed heat, anti-friction coating on the skirts and vertical gas ports drilled into the crown down to the rear of the top ring seat. gas pressure, especially in high pressure applications like a turbo , pushes the rings out against the cylinder wall improving seal and adding horsepower.

while i could very well run these around town it would be a waste. the coatings would be used up putting to the beer store and the gas ports would get plugged with carbon rendering them mere mortal pistons.

i suspect that i will drop these in just before i head out to bonneville.

in the meantime i will be running a new set of 'ordinary' pistons that are also in the goodie box (along with a bunch of other stuffs ).

thanks, xl, i am going to need all the luck and good wishes i can get.

[AustinXL]

I can't wait to see Step 17!!

[bitpusher]

step 17 will be posing for bonneville trophy photos standing behind a bike that still has 9 second ET paint on it from the last session at the drag strip

[sportsterpaul]

Sky: Best of luck to you, will be checking the Headlines from Bonneville!

[Kot]

Great project Bit !!!

I hope You will cross 1/4mile in 9.xx s