MS3 Cam.. PTV issue?
09-09-2009, 10:02 AM
#2
As stated on the phone, it might clear for a bit, but it will not be comfortable (some people's idea of clearing is different than others)! Cut them for sure!
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
09-09-2009, 10:06 AM
#3
TECH Apprentice
iTrader: (6)
Join Date: Oct 2007
Location: Pensacola, FL
Posts: 315
Likes: 0
Received 0 Likes
on
0 Posts
You shouldnt have a problem running the cam at all.. But over time you might want to think about it. There is a guy around here where I live that runs a Vengeance Vindicator 2 cam with stock pistons and rods. He's only getting about 7 thousands PTV, which isnt good but if your going to be driving the car ever single day unlike him then I would go ahead and get your pistons flycut.
09-09-2009, 10:10 AM
#4
On The Tree
Thread Starter
iTrader: (4)
Join Date: Nov 2007
Location: H-Town
Posts: 185
Likes: 0
Received 0 Likes
on
0 Posts
You shouldnt have a problem running the cam at all.. But over time you might want to think about it. There is a guy around here where I live that runs a Vengeance Vindicator 2 cam with stock pistons and rods. He's only getting about 7 thousands PTV, which isnt good but if your going to be driving the car ever single day unlike him then I would go ahead and get your pistons flycut.
Its just the cam is already in there and ready to fire up.. just a lot of work taking the heads off now and cutting the pistons. Can you cut them while they are in the block? or do you have to take them out?
What are the specs on the Vindicator 2?
Trending Topics
09-09-2009, 02:24 PM
#8
Stage 2 heads aren't stock.
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
09-09-2009, 02:39 PM
#10
Even without milling, the larger diameter valves diminishes the piston to valve clearance as well.
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
09-09-2009, 03:05 PM
#11
12 Second Club
iTrader: (4)
Join Date: Jan 2005
Location: Texas
Posts: 1,200
Likes: 0
Received 0 Likes
on
0 Posts
Its better to go ahead and fly cut or dished pistons if budget allows. I went ahead with a -4 cc piston to make the MS3 clear with my reworkerd heads-2.05 int/1.57 ex.
09-12-2009, 04:41 PM
#16
On The Tree
Thread Starter
iTrader: (4)
Join Date: Nov 2007
Location: H-Town
Posts: 185
Likes: 0
Received 0 Likes
on
0 Posts
SURE DID!!!..LOL
ok...Finally everything is dynoed and tuned...
I will post the graph when I get to work tomorrow..
OLD:
465rwhp
425tq
New:
490rwhp
436tq
made 490 back to back to back runs... no lights, no knock..and last but not least, NO PISTON VALVE HITS!!
IF my valves were hitting the piston, no way in hell would it had made 490..
Thanks TX SPEED>
ok...Finally everything is dynoed and tuned...
I will post the graph when I get to work tomorrow..
OLD:
465rwhp
425tq
New:
490rwhp
436tq
made 490 back to back to back runs... no lights, no knock..and last but not least, NO PISTON VALVE HITS!!
IF my valves were hitting the piston, no way in hell would it had made 490..
Thanks TX SPEED>
09-12-2009, 05:48 PM
#17
TECH Fanatic
iTrader: (1)
Join Date: Jul 2006
Location: Washington DC
Posts: 1,444
Likes: 0
Received 0 Likes
on
0 Posts
but, as things heat up, or if you float a valve, you're screwed. ptv clearance changes, gets tighter as the intake and exhaust (duh!!!) valve heat up. iirc, the valve you're going to have problems with is in fact the exhaust, which expands quite a bit as the engine is running. just hope to god you dont float it. fly cutting a piston is alot less expensive then a new set of heads, valves, push rods, and a new short block. my buddy did the same thing, just figured his new prc 215's and a 233/234(?) would be fine. well... they wernt. it was a 8000 dollar mistake.
