blown81bu

This is my second set of pistons they sent wrong to me..with these comp would be 10.2..I was shooting for 9.7

look at this pic of catalog -20cc with a k445x75 same part number on box with a -15cc piston..I called them and admitted they screwed up again with all the part numbers changing for 2015 and never offered to make it right.

robert miller

Getting to big for the way they have been doing business in the past. Need to have a second set of eyes looking over what is in the box to what was ordered.

blown81bu

I jus want them to make it right

blown81bu

Wiseco manager nick d called me very nice appoligized about the situation and offered to make a new set in 1 week

4DRUSH

10.2 is perfect, put them in

blown81bu

Im trying to keep it 9.5 were i was at

a/c man

I agree put them in

blown81bu

Im going to use them and see what happens..my friends ls3 416 has same ones and hes at 10.5 w no issues and u guys say perfect
well see soon on the dyno what happens to the power..914 rwhp 890tq before upgrades
9.5 to 10.2
ls1 intake to ls2
stock tb to 90mm ls3
stock w/p to electric
8 rib to 10 rib
cog flip drive

same dyno same tuner..ECS of course

a/c man

I'm running the same piston in my 402 -15 cc with a set of afr 230 s there 70 cc so it's was figured to be @ 9.3 comp. It does well and like a lot of timing. I just wonder what ratio it really has without testing and cc the heads and piston in the hole, head gasket thickness at TDC

So rough guess here

402 with -15 wiseco
AFR 230 72 cc
I was told with right gaskets it will be 9.3 comp. Or 9.7 cr. It can take lots of timing

Anyone what to take a guess

realcanuk

My 402 uses the -15 Pistons. With 65cc heads and LS9 gaskets it is 9.9 to 1.

a/c man

So with my heads at 70 cc I should be around 9.3 to 9.7 same LS9 gaskets

realcanuk

On my exact engine, if the heads were 70 cc it should be 9.46 (9.5) to one.
It depends on a few things. If you have all the stats you can figure it out.

http://www.csgnetwork.com/compcalc.html

blown81bu

was at the machine shop last night we cc the heads there 65cc...not 70 not 72...65cc before we even milled them so figure 64ish when there machined
416 -15cc stock ls3 deck height and ls9 gasket came out to 10.2

so this morning i sit here at work still unsure what to do LOL..Nick d will be calling me today to give him an answer what i want to do

realcanuk

I think around 10 on an LS is good unless building something crazy.

DOUG @ ECS

It's not just Wisco, I while back we got the same deal for one of 4DRUSH's engines. Took forever to get the right pistons. And then the machine work, whole other story.

BLOWNBLUEZ06

Maybe RHS owns wiseco.

p1bz

Wiseco sucks.... For some reason the lsx world uses them.

blown81bu

Nick D"Agostino just called me again this morning ..Pretty good support now so wiseco is really coming through now..

breecher_7

I literally spit my coffee out and laughed when I read this...

inspector12

Yeah they must suck casue you say so. You need to give some more information than that. No other piston manufacture can make a piston as light and strong due to there own forgings. JE and Weisco are owned by the same CO. JE makes all the Nascar Pistons, so it theory they must suck too lol! Are you one of those Diamond Piston guys? Nothing really wrong with those either, but I don't care for them, but mine is just based on another engine builders experience so its just in my head really. Ppl all use different things and parts doesn't mean that one is always better than another. I've never had an issue cause by the Wiesco's ive used. With that said customer service can suck from a large co at times because your just one person and not a bussiness or shop that orders multiple orders. So that sometimes is a PITA. Glad you got it worked out blown81bu.