|
06-18-2008, 08:41 AM | #1 |
Super Moderator
Join Date: Dec 2004
Posts: 6,313
|
Turbo Fox project...
I've had my block, crank, rods, pistons, etc. for a while now. They've been "aging" in a corner of the shop because of other priorities. I pruned a few "smacktalk" posts out of this thread (including mine), since everything keeps getting delayed. LOL.
Engine will be a 331 and includes the following parts: 4-bolt R302 block 4340 forged crank H-beam rods Ross Pistons Engine management will be a FAST classic sequential box. Team Z suspension going under it along with tubular K-member and coilovers. I have full intentions of driving the car on the street, to work, track, etc...
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein Last edited by coupe; 10-05-2009 at 02:52 PM. |
06-18-2008, 12:24 PM | #2 |
Trunk Monkey
Join Date: Jun 2007
Location: Home
Posts: 5,708
|
I hear ya' Matt! I know the feeling,my coupe sat under the carport for 3 years with no engine/tranny in it while I built up my 306.Not having the free time to do it all at once can be frustrating!
__________________
Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
06-18-2008, 01:09 PM | #3 | |
Super Moderator
Join Date: Dec 2004
Posts: 6,313
|
Quote:
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
|
06-19-2008, 03:55 PM | #4 |
Super Moderator
Join Date: Dec 2004
Posts: 6,313
|
You power-adder guys who've built your motors...what kind of piston clearance did you have in the bore?
I have my sights set on a figure, but I'm curious as to what you guys used. And what type piston and bore size for the given clearances.
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
06-19-2008, 11:05 PM | #5 | |
Senior Member
Join Date: Oct 2007
Posts: 184
|
Quote:
what does your piston manufacturer recomend ? you just dont have a poll about that |
|
06-20-2008, 07:56 AM | #6 | |
Super Moderator
Join Date: Dec 2004
Posts: 6,313
|
Quote:
Must be a top-secret, seeing how they jumped in here with numbers. Ross has a range of values for turbo and for street car. I'm setting mine up somewhere in the middle, to avoid a noisy cold-start. The 2618 alloy expands more than a 4032 or hypereutectic piston, so I still must give it some room. I concurred with Mark O' Neal. .0045 is my goal. +/- .0005
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
|
06-19-2008, 06:05 PM | #7 |
Senior Member
Join Date: Sep 2005
Location: Boulder, CO
Posts: 463
|
Oddly enough, I was bored, and leafing through an engine building book. This is what the guy says in regards to forced induction piston clearance:
"I prefer to bore the cylinders to within .004" of the finished size, then hone each cylinder to fit a particular piston. In this way I can keep piston clearance to a tolerance of about .0003". [...] First using 220 grit stones, about .003" of material is removed to bring the bore to .001" from its final size. Then another .0005" is taken out with with 280 grit stones, and finally 400 grit stones are used to bring the bore to its final diameter. This result in a very accurate bore with a fine finish that requires very little break-in."
__________________
Jim |
06-19-2008, 06:45 PM | #8 |
Mind Blowing
Join Date: Jun 2006
Location: Dawsonville Ga
Posts: 3,913
|
give us some SPECS on the motor.
__________________
Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project |
06-19-2008, 07:00 PM | #9 | ||
Super Moderator
Join Date: Dec 2004
Posts: 6,313
|
Quote:
Quote:
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
||
06-19-2008, 07:10 PM | #10 | |
Senior Member
Join Date: Sep 2005
Location: Boulder, CO
Posts: 463
|
Quote:
Get that trademarked.
__________________
Jim |
|
|
|