Piston perfromance - Page 2

Joe DeMarzo · 09-02-2013, 04:21 PM

Dwight, now we are getting somewhere. Strictly stock. Would the flat top with notches be worth carrying the extra 260 lbs? Rough HP number on a dyno, 10, 15, 20 HP less from the dish piston?

The flat with notches is a better piston but would it worth the weight?

I am asking a lot without much info, lol that why class racers are the best!

CFMCNC · 09-03-2013, 12:40 AM

In most cases a spherical dish will make the most power,However there are a lot of variables.Bill C.

ron mattson · 09-03-2013, 05:11 PM

A dish also means more volume in total, a bigger bomb in theory
and we can fool the engine into thinking its got more
compression than it really does.

monahan · 09-03-2013, 07:46 PM

joe I have 2 complete tune port 350s throttlebody to oil pans that I have run and dyno tested one is 1989 and one is 1990 all engine specs are the same except one is a flat top 4 valve reliefs and one is dish 4 relief when all testing and flogging was done there was only 2 or 3 horse power and and three or four hunderth different the only big plus is the 1989 is rated at 4 less hp we can talk more at etown if you want sorry about the grammar ok I am off the soap box gene monahan

Joe DeMarzo · 09-03-2013, 08:56 PM

Geno I will look you up at Englishtown, Ron that is what I thought but was not confident in saying that.

Thanks.

Dave Ley · 09-03-2013, 09:02 PM

Joe , Should I be bringing the 2 X 4 ???

Joe DeMarzo · 09-03-2013, 09:06 PM

lol, you go to Indy for 10 days and I get loose... bring it I need a reality check again.

Lee Valentine · 09-04-2013, 05:37 PM

I was thinking we could all chip in and get Joe a play station 3 to occupy him so he stops with these weird ideas. Still thinking about the 2 BBL.? Just busting them, see you at E-Town.

09-02-2013, 04:21 PM	#11
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Piston perfromance Dwight, now we are getting somewhere. Strictly stock. Would the flat top with notches be worth carrying the extra 260 lbs? Rough HP number on a dyno, 10, 15, 20 HP less from the dish piston? The flat with notches is a better piston but would it worth the weight? I am asking a lot without much info, lol that why class racers are the best! __________________ Joe DeMarzo 1317 STK

09-03-2013, 12:40 AM	#12
CFMCNC Junior Member Join Date: Apr 2012 Location: Somwhere in NJ Posts: 72 Likes: 4 Liked 3 Times in 3 Posts	Re: Piston perfromance In most cases a spherical dish will make the most power,However there are a lot of variables.Bill C.

09-03-2013, 05:11 PM	#13
ron mattson Member Join Date: Nov 2005 Location: cloquet mn Posts: 466 Likes: 17 Liked 67 Times in 30 Posts	Re: Piston perfromance A dish also means more volume in total, a bigger bomb in theory and we can fool the engine into thinking its got more compression than it really does. __________________ Ron Mattson 5015 STK

09-03-2013, 07:46 PM	#14
monahan Junior Member Join Date: Dec 2006 Posts: 35 Likes: 0 Liked 5 Times in 2 Posts	Re: Piston perfromance joe I have 2 complete tune port 350s throttlebody to oil pans that I have run and dyno tested one is 1989 and one is 1990 all engine specs are the same except one is a flat top 4 valve reliefs and one is dish 4 relief when all testing and flogging was done there was only 2 or 3 horse power and and three or four hunderth different the only big plus is the 1989 is rated at 4 less hp we can talk more at etown if you want sorry about the grammar ok I am off the soap box gene monahan

09-03-2013, 08:56 PM	#15
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Piston perfromance Geno I will look you up at Englishtown, Ron that is what I thought but was not confident in saying that. Thanks. __________________ Joe DeMarzo 1317 STK Last edited by Joe DeMarzo; 09-03-2013 at 09:01 PM.

09-03-2013, 09:02 PM	#16
Dave Ley Member Join Date: May 2008 Location: South Jersey , The 51st. State Posts: 424 Likes: 1,803 Liked 241 Times in 44 Posts	Re: Piston perfromance Joe , Should I be bringing the 2 X 4 ??? __________________ Dave Ley

09-03-2013, 09:06 PM	#17
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Piston perfromance lol, you go to Indy for 10 days and I get loose... bring it I need a reality check again. __________________ Joe DeMarzo 1317 STK

09-04-2013, 05:37 PM	#18
Lee Valentine Senior Member Join Date: May 2004 Location: Brookfield, CT Posts: 708 Likes: 13 Liked 319 Times in 68 Posts	Re: Piston perfromance I was thinking we could all chip in and get Joe a play station 3 to occupy him so he stops with these weird ideas. Still thinking about the 2 BBL.? Just busting them, see you at E-Town. __________________ Lee Valentine 1661 STK