Do Not Tune With Safcii?? - Page 9 - 3000GT/Stealth International Message Center

SnakeSkinner · 07-16-2008, 01:38 PM

Quote:

Originally Posted by ray pampena

the ross piston thing is funny.. ive had guys that i sold engines and pistons to who call me and tell me GTPRO said i cant run those pistons! i need a refund! meanwhile all the fast/powerful cars run them

My car has Ross Pistons, and even on it's 1031 hp hp Dyno pulls the highest knock count the stock ECU ever showed was a 4 count. On the track on my 8 second passes on 1 pass it showed a knock count of 1. That’s a prity dam quiet 1000hp motor if you ask me, ross pistons and all.

Dj4play · 07-16-2008, 01:56 PM

Quote:

Originally Posted by SnakeSkinner

My car has Ross Pistons, and even on it's 1031 hp hp Dyno pulls the highest knock count the stock ECU ever showed was a 4 count. On the track on my 8 second passes on 1 pass it showed a knock count of 1. That’s a prity dam quiet 1000hp motor if you ask me, ross pistons and all.

Im talking about the off shelf ross pistons which is not in your engine. They are noisier than the other off-shelf pistons. The same pistons that were in your first engine that was built in your white stralth many moons ago matt.

oohnoo · 07-16-2008, 05:33 PM

Very informative posts as usually Ray. Always learning something when you post, should do it more offen, you get lunch breaks at Toyota right?

Can someone explain to me why STOCK Ross pistons are noisy?

Dj4play · 07-16-2008, 06:27 PM

Quote:

Originally Posted by oohnoo

Very informative posts as usually. Always learning something when you post, should do it more offen, you get lunch breaks at Toyota right?

Can someone explain to me why STOCK Ross pistons are noisy?

I will (instead of jut posting information we have simply found out over alot of time tuning at the shop), Gather some hard data for everyone. Give me few days to get everything together.

Sin'sVr4 · 07-16-2008, 07:07 PM

I bought ross pistons from ips. Are those different from what your talking about?

ray pampena · 07-17-2008, 04:39 AM

Quote:

Originally Posted by Dj4play

I will (instead of jut posting information we have simply found out over alot of time tuning at the shop), Gather some hard data for everyone. Give me few days to get everything together.

hard data on what? timing and egts??lol or piston noise? be sure to list your piston to wall if talking about noise.

Import Power · 07-17-2008, 07:10 AM

Quote:

Originally Posted by ray pampena

hard data on what? timing and egts??lol or piston noise? be sure to list your piston to wall if talking about noise.

what skirt to wall do you use?

ray pampena · 07-17-2008, 11:48 AM

although i hate telling other engine builders how to do things (not you Chris/3sx lol) .0045" gives long life and no noise. if theres noise, they are looser than that.

my custom piston uses a custom barrel/cam design that has a stronger skirt for even more life and abuse. all shelf stock pistons of any brand are designed for what they think you would need. a general application race piston in your bore and comp height.
the ones i built are for THESE engines only and are built around a trick ring pack and custom barrel.

Sin, you will be fine with those shelf units if you use the right piston to wall. a good machinist will know whats best for you. if they are set up too loose, just like with ANY piston, you will have noise.

im on a goddamn post a thon!

Import Power · 07-17-2008, 01:05 PM

Quote:

Originally Posted by ray pampena

although i hate telling other engine builders how to do things (not you Chris/3sx lol) .0045" gives long life and no noise. if theres noise, they are looser than that.

my custom piston uses a custom barrel/cam design that has a stronger skirt for even more life and abuse. all shelf stock pistons of any brand are designed for what they think you would need. a general application race piston in your bore and comp height.
the ones i built are for THESE engines only and are built around a trick ring pack and custom barrel.

Sin, you will be fine with those shelf units if you use the right piston to wall. a good machinist will know whats best for you. if they are set up too loose, just like with ANY piston, you will have noise.

im on a goddamn post a thon!

I would rep you again for sharing your 3S knowledge you have gathered over the years....But I am at my Ray rep until I spread it around a bit more.

ray pampena · 07-17-2008, 01:19 PM

Quote:

Originally Posted by Import Power

I would rep you again for sharing your 3S knowledge you have gathered over the years....But I am at my Ray rep until I spread it around a bit more.

hey no problem man. this is a great place for sharing..thats why misinformation gets me fired up lol

07-16-2008, 05:33 PM	#83 (permalink)
oohnoo Verified Seller Join Date: Apr 2003 Location: LI,NY Trader Rating: (146)	Re: Do Not Tune With Safcii?? Very informative posts as usually Ray. Always learning something when you post, should do it more offen, you get lunch breaks at Toyota right? Can someone explain to me why STOCK Ross pistons are noisy? __________________ ----------------[2007 Ride of the Year *"Stroke" her I did.* Retired - TD04 WRX19t's = 513awhp @ 18psi on PUMP Last edited by oohnoo : 07-16-2008 at 07:11 PM.

07-16-2008, 07:07 PM	#85 (permalink)
Sin'sVr4 One Sinister Motha Sucka! Join Date: Nov 2007 Location: Colorado Drives: 91 VR4/94 Wrangler Trader Rating: (5)	Re: Do Not Tune With Safcii?? I bought ross pistons from ips. Are those different from what your talking about? __________________ 91 Vr4, TDO4L 13T's, heads ported and polished, oil cooler, new vss, new valves, springs, rebuilt engine with 99 big bore lifters, Fel-pro head Bolts, IPS Ross (.030) Pistons and Rings, brand new forged mitsu oem crank, clevite bearings, all new gaskets and seals, new oem oil pump, new water pump, all new gears and synchros(1-5 and reverse) new oem motor mounts, VIS Carbon Fiber Hood, R1 Performance Drilled Slotted rotors, JDM amber taillights, 99 Headlights, Tein S Springs, 99 rear Garnish, Greddy Profec-B Spec II EBC, evo8 560cc injectors, Apexi SAFC-II, walbro 255 FP, 120k, hks SSQV, borla 3", downpipe, gt-pro FMIC, XTD stage 3 racing clutch, Brand new two tone custom interior, x2 Kicker Comp 12" subs, infinity Kappa 3 stage 6x9's, 98 conversion!

07-17-2008, 11:48 AM	#88 (permalink)
ray pampena Supporting Vendor Join Date: Oct 2001 Trader Rating: (6)	Re: Do Not Tune With Safcii?? although i hate telling other engine builders how to do things (not you Chris/3sx lol) .0045" gives long life and no noise. if theres noise, they are looser than that. my custom piston uses a custom barrel/cam design that has a stronger skirt for even more life and abuse. all shelf stock pistons of any brand are designed for what they think you would need. a general application race piston in your bore and comp height. the ones i built are for THESE engines only and are built around a trick ring pack and custom barrel. Sin, you will be fine with those shelf units if you use the right piston to wall. a good machinist will know whats best for you. if they are set up too loose, just like with ANY piston, you will have noise. im on a goddamn post a thon!

Sponsored Links
3000GT/Stealth International Message Center Advertisement