What is a guy to do????

fsttang96 · May 27th, 2009, 07:23 PM

Called and cancelled my PI heads because I was told it would run my compression up to 10.5 - 11.5 to 1 and it would not be wise to run a supercharger with that amount

! So I was just going to keep my NPI heads on swap out the cams for some PI (or some Comp Cams if the budget allows) and put on the PI intake so I could still run my SC ! Then I was told not to put the PI intake on NPI heads with a SC because I would have Intake gasket issues

!!! How do I get more out of this car and still keep my SC on ?!?!?

P.S. Really dont want to run Nitrous

!!!
P.S.S Dont want to spend thousands either !!

97S281 · May 27th, 2009, 08:12 PM

Get a set of 2 valve SVO heads.

Or use thick cometic head gaskets with the swap to keep the compression down.

97stanggt · May 28th, 2009, 07:44 AM

use cometic thicker gaskets to lower cr on pis but PI heads will raise to 10.5ish and could still run bout 6lbs to it lil more i beleive if you add like a 25 shot of n202

fsttang96 · May 28th, 2009, 11:34 AM

Originally Posted by 97S281

Get a set of 2 valve SVO heads.

Or use thick cometic head gaskets with the swap to keep the compression down.

Were can I get a set of SVO heads and an intake ?

2002 BLK GT · May 28th, 2009, 11:40 PM

I would say to try to get the phone numbers of junkyards close to you and start calling, I couldnt find anything online bro...

mustangracer2g · May 29th, 2009, 06:00 PM

svo heads are pretty rare nowadays, but yeah, i'd say if you want to do things right, do that, OR, get your stock heads ported, then get the PI instake, and install it using the intake spacers like the ones that are sold on Home and then get some PI cams, or supercharger cams and you should be good to go man.

97S281 · May 29th, 2009, 06:02 PM

Originally Posted by fsttang96

Were can I get a set of SVO heads and an intake ?

God for sure could get you a set. Maybe Jesus, but don't hold me to it.

97GT4.6 · May 29th, 2009, 07:39 PM

Originally Posted by 97S281

God for sure could get you a set. Maybe Jesus, but don't hold me to it.

lmao.

well they came out with those new nPI heads that flow pretty well, and work with lower compression.

Boostang · May 30th, 2009, 04:35 PM

ok just a thought but they say you cant run pi heads because it ups compression?
well im preety sure that there are some stock 99-04 stangs running superchargers.. and their compression is also 10.5 to 1!
as long as u stay below 450 to the crank ur safe..

4.6LMadness · May 30th, 2009, 04:40 PM

Originally Posted by Boostang

ok just a thought but they say you cant run pi heads because it ups compression?
well im preety sure that there are some stock 99-04 stangs running superchargers.. and their compression is also 10.5 to 1!
as long as u stay below 450 to the crank ur safe..

whoa whoa, 99-04 have a smaller chamber because they have different pistons to keep compression down. its still in the 9 to whatever for the new edges. not no 10.5 to 1.

Boostang · May 30th, 2009, 04:42 PM

ok my bad...
didnt know for sure just thought the heads and intake was the difference. didnt know they had diff peistons..

4.6LMadness · May 30th, 2009, 04:47 PM

Boost + High compression = fail because it will cause the motor to detonate not blow apart because of horse power. You would have to run some pretty high octane to keep it from detonating with the supercharger. Or run super low boost. Like 6-7 psi.

G.T. Rags · May 30th, 2009, 05:59 PM

Originally Posted by 97S281

God for sure could get you a set. Maybe Jesus, but don't hold me to it.

i tried, they both told me to call santa......

May 27th, 2009, 07:23 PM	#1
fsttang96 Regular 1996 Mustang GT need tuned Join Date: Oct 2007 Location: Shanksville, PA Posts: 161 iTrader: 1 reviews	What is a guy to do???? Called and cancelled my PI heads because I was told it would run my compression up to 10.5 - 11.5 to 1 and it would not be wise to run a supercharger with that amount ! So I was just going to keep my NPI heads on swap out the cams for some PI (or some Comp Cams if the budget allows) and put on the PI intake so I could still run my SC ! Then I was told not to put the PI intake on NPI heads with a SC because I would have Intake gasket issues !!! How do I get more out of this car and still keep my SC on ?!?!? P.S. Really dont want to run Nitrous !!! P.S.S Dont want to spend thousands either !! __________________ 1 of 829 made Bright Tangerine Orange 10Lb Vortech V2,CXRacing FMIC MHS Stage 2 Blower cams,39# Injectors PI Intake,Ported and Polished NPI Heads BBK Headers,78mm BBK Throttle Body Mac H Pipe,2.5 inch Flowmaster Exhaust ,373 Gears

May 27th, 2009, 08:12 PM	#2
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Get a set of 2 valve SVO heads. Or use thick cometic head gaskets with the swap to keep the compression down. __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

May 28th, 2009, 07:44 AM	#3
97stanggt Regular 1997 Mustang GT Join Date: Feb 2009 Location: South Dakota Posts: 299 iTrader: 0 reviews	use cometic thicker gaskets to lower cr on pis but PI heads will raise to 10.5ish and could still run bout 6lbs to it lil more i beleive if you add like a 25 shot of n202 __________________ ____________________________________________ 97 Stang GT 5sp 5.4L SOHC 96 F-250 Stroker -=-Modded-=- 08 Kawasaki Brute Force 7504x4I Selling PI Cams/NPI intake Alum Cross/4.6L LongBLock minus Oil pan and most of the timing cover bolts.

May 28th, 2009, 11:40 PM	#5
2002 BLK GT Hardcore Enthusiast 03 Mach 1 & 02 GT *************** Join Date: Apr 2009 Location: S. California Posts: 2,178 iTrader: 0 reviews	I would say to try to get the phone numbers of junkyards close to you and start calling, I couldnt find anything online bro... __________________ 2003 Mach 1 Procharged 500rwhp club

May 29th, 2009, 06:00 PM	#6
mustangracer2g Regular 1997 Mustang GT not as slow... PI swapped :-) Join Date: May 2008 Location: San Diego, Ca Posts: 275 iTrader: 0 reviews	svo heads are pretty rare nowadays, but yeah, i'd say if you want to do things right, do that, OR, get your stock heads ported, then get the PI instake, and install it using the intake spacers like the ones that are sold on Home and then get some PI cams, or supercharger cams and you should be good to go man. __________________ If there's one thing in life you should never take for granted its the ability to drive fast when given the hp to. (PI engine swapped now, so i can go just a lil bit faster haha) oh yeah, and why the hell do imports always try to race me?!

May 30th, 2009, 04:35 PM	#9
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	ok just a thought but they say you cant run pi heads because it ups compression? well im preety sure that there are some stock 99-04 stangs running superchargers.. and their compression is also 10.5 to 1! as long as u stay below 450 to the crank ur safe.. __________________ If It Dont Flow It Wont Go!!! forged pistons,teksid block and a romeo cast cranks for sale.. pm if interested.. selling them for next too nothing

May 30th, 2009, 04:42 PM	#11
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,747 iTrader: 0 reviews	ok my bad... didnt know for sure just thought the heads and intake was the difference. didnt know they had diff peistons.. __________________ If It Dont Flow It Wont Go!!! forged pistons,teksid block and a romeo cast cranks for sale.. pm if interested.. selling them for next too nothing

May 30th, 2009, 04:47 PM	#12
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845 iTrader: 0 reviews	Boost + High compression = fail because it will cause the motor to detonate not blow apart because of horse power. You would have to run some pretty high octane to keep it from detonating with the supercharger. Or run super low boost. Like 6-7 psi. __________________ Pi Swapped, K&N CAI, Diablo Tune, BBk O/R X-Pipe with Flow's dumped and a 5.4L on its way.

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