COramprat said:
BTW what kind of tires were you running to get those 60's
I need to get some better tires so I can get a 1.9 60 foot. I have done 2.0's on these tires before but I did it on a night with horrible air and was trapping 98-99 mph
well I just added a x pipe and I think i might install my control arms somtime this week and go back up.. I need to relax and get a better launch and get a 2.0 out of these tires..
I would think the heads would have a lot to do with it, from experience at the track. I was running 13.8 in my car last year, and an NPI SN95 with a dyno tuned centrifugal blower and 5-speed was running low 14's. I would think the blower should help overcome the shortcomings of only cams and intake.TGJ said:
He was not a happy camper.
The stock ports on the NPI heads are tiny. They can be ported though to be as good as ported PI heads.
Its not the heads!!!!!MaxedGT said:
If that guy swapped to a PI intake and PI cams he would not only add over 50 rwhp but also now be making power up to 6,000 rpms instead of getting choked off at 4500rpms.
Centi's on stock NPI's only get you like 260-280rwhp...just a intake/cam swap will get that same car to 330rwhp area.
I didn't know you could swap the PI intake on NPI heads. I thought the NPI intake wouldn't fit the PI heads, unless you have one of those kits. I thought the PI heads, intake, and cams were a package deal that coudn't be interchanged with the NPI stuff. Aren't the PI cams made to match the PI heads??..
Why not swap to the PI heads also instead of just intake and cams? It's apparant that the PI heads outflow the NPI heads and porting the NPI heads will get you the flow of the non-ported PI heads. A ported set of PI heads will kill a set of ported NPI heads. So why limit your potential by choking off HP with the NPI heads? Plus, people are selling the entire package dirt cheap...
Why not swap to the PI heads also instead of just intake and cams? It's apparant that the PI heads outflow the NPI heads and porting the NPI heads will get you the flow of the non-ported PI heads. A ported set of PI heads will kill a set of ported NPI heads. So why limit your potential by choking off HP with the NPI heads? Plus, people are selling the entire package dirt cheap...
I definatly agree with the use of NPI heads,.. but they need to be ported, they can be ported to outflow ported PI heads. I am just saying with stock NPI heads and PI intake cams.. your not gonna make the same power as a similiarly modded PI car. It wont happen.
and ramprat I am not bashing your car. you have done a great job with it, and I always tell my wife how much I like it. but be serious. you had more mods than I had when you ran those numbers. All I had was flowmasters and underdrives. you had CAI, plenum, Tb, prochamber, exhaust and a tune. I dont wanna put down on your car. your making guys around here look again,.. but be honest. a pi intake and cams wont make the same power as a pi headed motor with the exact mods.
lover said:
PI cams- 100.00 New
PI Intake- 200.00 New
-------------------- = 300.00
PI heads swap - 1350.00 New
So your spending 1050.00 for 10HP!
Im planning on getting the comp 268H cams and a PI intake.
268H - 550.00
PI Intake - 200.00
So for 750.00, I will make more power than a head swapped car. And my compression won't be to high for a S/C in the future.
01Steeda said:
Bull****, 3 cars that didn't and a tonne of cars that are. If you what to say I am posting bad info, you better start bringing some supporting threads. I have debated this in the past and brought quite a few threads to support what I am saying. I don't feel like doing that right now.
My TBird:
Removed Air Silencer, 03 GT MAF, 04 GT intake Tube, PI intake, PI cams, 3800 Stall TC, 3.73 TL, Custom 2.5" Exhaust, Custom SCT Tune, Hoosier QT Pro, 14.11 @ 96 MPH
Friends Tbird:
03 GT MAF, 01 GT 4.6L( PI ), C&L intake, BBK 75mm TB, 3500 Stall TC, 3.90 TL, Custom 2.5" Exhaust, Custom SCT Tune, Hoosier QT Pro, 14.56 @ 94 MPH
Cars were side by side. My Tbird is heavier because of the stereo equipment in the trunk that his car didn't have. Also, my car has 160,000 kms on the motor, the other TBird, got that motor with 2000 kms on it, when we ran, he had about 16,000 kms on the motor.
I have not had my TBird dynoed but going off the 1/4 times, my car is making more power. I bought the car new, so nobody swapped PI heads on to it.
Bone Stock 99+'s put down 230rwhp.
That still is more than a 96-98 with PI heads/PI cam (NPI heads). Plus the examples given had "bolt-ons" to help out...a bone stock 99+ does not.
The PI heads help out, quite a bit...they aren't just for looks. Ever seen them side by side, I think that'll answer your questions?
Where can I get PI cams and PI intake new for $300 dollars total?
I have beat a zo6 before, that doesn't mean I make more power than it does.
Will the PI intake fit on non-pi heads with no changes or "adapters"?
That still is more than a 96-98 with PI heads/PI cam (NPI heads). Plus the examples given had "bolt-ons" to help out...a bone stock 99+ does not.
The PI heads help out, quite a bit...they aren't just for looks. Ever seen them side by side, I think that'll answer your questions?
Where can I get PI cams and PI intake new for $300 dollars total?
I have beat a zo6 before, that doesn't mean I make more power than it does.
Will the PI intake fit on non-pi heads with no changes or "adapters"?
There is no need for adapter's when using the PI intake on NPI heads. Most of the mods required to use a PI intake on an NPI car are required whether you use NPI or PI heads, the only one difference when using NPI heads is that you need to use RTV on either certain coolant or the intake ports depending on the gasket used. There is adapter kits out there.
That said, a 99+ 5 Spd car makes 230 RWHP, the auto's are from about 210 - 225. Using the test car I referred to that an upgraded MAF over the stock TBird one, made 220 RWHP through an auto and IRS. All that car had was a Lightning MAF, PI Cams and PI Intake with a tune. That car was bang on with what a tuned PI motor makes when swapped into a TBird/Cougar.
I am not going to continue to argue with you guys. Do a search on posts by me to see where I have been getting the info from. I suggest you start bringing data to refute it instead of what you believe or don't.
That said, a 99+ 5 Spd car makes 230 RWHP, the auto's are from about 210 - 225. Using the test car I referred to that an upgraded MAF over the stock TBird one, made 220 RWHP through an auto and IRS. All that car had was a Lightning MAF, PI Cams and PI Intake with a tune. That car was bang on with what a tuned PI motor makes when swapped into a TBird/Cougar.
I am not going to continue to argue with you guys. Do a search on posts by me to see where I have been getting the info from. I suggest you start bringing data to refute it instead of what you believe or don't.
Look all that really needs to be said is.... if your gonna stay N/A spend some money and you can find a good set of used PI heads for a reasonable amount...if your gonna look into a SC ot turbo set up save the 500-1250$$ keep the NPI heads and put money to the Power adder. but yes FOR SURE get a PI intake. I think other than a 3.73 or up rear end its the only power you really feel on the SOTP dyno.