1991 talon 500 hp project

[CornFed2.4]

Almost half way there! Have fun in Cali.

[s1ngletracker]

the hard half comes next :P

[way2fastalon]

well today i pulled out the damaged piston as stated before in another thread. It went boom after getting here rod is fine bearings are even fine normal wear.

scoring is a lil excessive but will still run as is it didnt run long enough after the hole to make a mess in the oil galleys im still pulling the oil filter housing off and cleaning it out .

[way2fastalon]

well its been some time since i have posted last .. i have disappointing news


so today i found out i wasn't sold .020 wiseco pistons :angryfire:

after the fact i had the very rare unheard of crank-walk a week ago with loose main and tight rod bearings ??? and cant blame oil starvation i had 80 psi at 70 mph i had 15-25 at idle hot i ran good oil all the time 20w50 vr1 with a zinc additive

my block was bored over .020 and i set my ptw to .023 and run a loose ring gap back in 2010 when assembled left me with a very tight .03

now luckly i did that cause the engine ran like that for 2 years with standard size pistons i ordered .020 soo witch brings me to here now whose error mine or the place i bought it from not giving names at this time

make sense of all the issues i have had in the past with it from frying 11 turbos no matter where fed replaced 2 front covers and oil pumps ,oil filter housings,everything oil related still cooked turbos

[CornFed2.4]

How did you not know they weren't .20 over? I guess that would be your fault. I don't build engines but I remember when I bought stuff I double and triple checked with the shop when I picked up my parts. I think your shit out of luck. But on the bright side you might be able to build it up to the actual title of this thread. 500 awhp dsm! Good luck :beer:

[JET]

Engine builder should always double check all parts before putting them in the engine. That sucks though, did you measure the diameter at the top or bottom of the piston to determine their size?

[way2fastalon]

12368

point is they are standard my purchase order says .020 over


picture is when i first got it all together what it looked like

[way2fastalon]

i would have checked if i had a good mic ... but people with those are hard to find and you cant use a cheap one so i took the shops word for it ...

[way2fastalon]

im still shooting for 500 but i keep getting raped

[viridionplague]

according to this article http://ferrarichat.com/forum/faq.php?faq=haas_articles 20w50 oil would be horrible for your engine. all you need is some pressure to create oil flow, but high pressure does not mean high flow and good lubrication.

not saying that oil starvation caused your problem but could have been a contributing factor based on this article.