hustler

iTrader: (6)

Crusher does not impress me, it is too slow. Driving it sucks.
The problem is $800, I'm just not that baller.
Headwork is pretty much out of the question right now because I have a 2-day old head that I don't want to pay for another valve-job on. Does the bowl work you speak of cut into the quench pad and what do you think about turning-down the edge of the quench pad? I see a hard edge in a cylinder and that tells me "hot-spot".
I like MBT, it makes me happy in terms of reliability and ease of tuning. When tuning with a det ceiling, you never know how close you are to det on track because although we can get close on a dyno, it's not close enough for me to sleep at night. I know you know this, but others may not. I'm really starting to lean toward 10.5 CR for my 93 octane car, that sees a lot of 91 in Oklahoma. I can bring 10-gallons of 93 with me to richen-up the 91 at Hallett. Wiseco 10.3s seem like the best option for me, but I want a little more dome height, just a touch...maybe I can weld some quarters. The other great part about those Wisecos is the awesome finish on them. I'll want to hand finish anything else I buy because that mechanical octane is valuable to me. I just broke down my 8.6:1 engine to sell the bottom end and there is zero det, I want to get back there, the enchanted land of MBT.
How bad do those 2618 pistons clanking and bang-up cylinder walls?
Welcome to 1981, year of my birth, back when Mazda put truck engines in sportscars.
I don't want to wait until summer to get this car running again. Email me on the side if you want. I'm not opposed to throwing in a prototype.

Is there any chance you have a Wiseco piston in house you can take some photos of for me? The more I obsess over this, the more I realize I need to compromise on compression ratio to build the reliability that I want. I'd like to see no less than 5-years out of the next engine running 10-15 weekends at the track per year. Now that I have a taste of W2W with RHarris, that number may be reduced.

emilio700

iTrader: (3)

FWIW, we once made over 180whp on about 10.5:1 and pump gas and only lightly reworked head. Took big cams but compression is not the only thing that matters.

hustler

iTrader: (6)

Your clandestine piston email to me may free up some money for other things...or whatever happens when I get this head off in about 10 minutes.

shanem

iTrader: (1)

trey don't you still have the turbo engine and all the gear sitting there only needing a welded manifold?

I'm still not sure you will be happy with simply beating the SM record after spending turbo time beating the crap out of everyone. I say that because I wouldn't be happy going slower than I am now. then, maybe you are all about the wheel to wheel at this point and are aiming for a specific class.

jacob300zx

I believe Trey is faster now with less power? W2W is really fun, even a pack of 3-4 miata's in TT is ****.

hustler

iTrader: (6)

When I get this car running again I'll let you go out for a ride with me so you can see how a man drives when his ***** require a special harness/girdle so they don't tear his vas deferns when braking.

I think that when I get this car back together, I won't be going slower than you. Pretty much everyone in Texas drives like they've never tapped a cervix in their lives anyway so you don't know what competition is like yet...I didn't.

Double O 86

I'd like to nominate the above as the official "Quote of the Thread".

On another note (thread hijack), Hey Jacob, is Spoolin2bars still alive?

hustler

iTrader: (6)

My four day old bottom end, lol:
#1



#2



#3



#4

Braineack

iTrader: (62)

your block scores high marks.

hustler

iTrader: (6)

leoulx.

can anyone read the bore size off the piston? I can't.

EO2K

iTrader: (37)

I don't think your machine shop guy can either. Sucks bro, what do?

jacob300zx

Need to see the rings, pull that bottom like you do.

curly

iTrader: (25)

That doesn't look horrible. Remember a piston rocks back and forth on the rod, so you expect to see a difference in the wall honing from the piston skirts. #1 and #2 look ok, my very limited experience on the subject tell me #3 and #4 look a little high in wear. It's hard to say after only 4 miles.

rleete

iTrader: (21)

I'd say that was pretty excessive for only a few miles. I'd expect to see that much scuffing after many thousands of miles. It's worn all the honing marks off, so it's more than just a little.

It's also uneven, which suggests the bore is not completely round.

shanem

iTrader: (1)

lol, im in for some laps.

hustler

iTrader: (6)

My 150-hour turbo bottom end leaks 6% and looks 10x better than this. This engine leaks 60% on #4.

Mobius

iTrader: (2)

Subscribed both for general knowledge gain, and endless entertainment. I can't wait to see the bottom end that gets built that withstands 150 hours of pounding by Hustler's special piston(s).

mcfandango

iTrader: (1)

That amount of scratching on the walls is horrible for a low mile motor. I just pulled my turbo motor for a refresh. About 7 yrs of autox and occasion track abuse and there were only a few vertical lines that you couldnt even catch your nail on. And at 15psi on a stock bottom end, this wasnt exactly babied.

My piston skirt coating had more wear than the cylinder walls showed.

hustler

iTrader: (6)

This engine probably has less than 1000 miles on it and I believe it has 6 track hours.

mcfandango

iTrader: (1)

Who built this motor? Unless the bore and ring gaps were off, that would imply the wrist pins werent doing so well.

If you need a recommendation, there is a place in Hutto that built my motor last time.