Intake Manifold Options

[caseypayne69]

It's really hard now days to know who to trust as far as horse power advertising is concerned. Most of the time people love to throw ranges like 5 to 15 rwhp. But never specify that 5 rwhp is going to be avg for NA cars and 15 rwhp is going to be avg for supercharged cars. With that being said, I have four intakes to talk about. And no lets not bring up those race only hp at the top end torq loss at the bottom end intakes either, I'm sure you know the ones that I'm refering too. Anyway on with the comparison for intakes that will fit on to 96-98 GT's.

Ford Racing Performance Parts Intake http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=3330
Cost: $1,695.00
Ford Advertised Flywheel Horse Power: 35
Requires installation hardware kit Cost: $325 (probably cheaper somewhere else)
Sean Hyland Motorsports Comments http://www.seanhylandmotorsport.com/online/product_info.php?cPath=30&products_id=192
-Comments: "Large diameter primary runners produce a significant horsepower increase in the 4000 to 6000 RPM range without loss or mid-range torque." Which is exactly where the npi Intake fails at 4k rpms.
Total Cost $2,020
Total Possible Flywheel HP: 35 Whether thats for NA or Blown is a mystery, will have to call Ford.
Horse Power Per Dollar Spent: $57.71






'96-98 4.6L PI Intake Adapter Kit from Livernois Motorsports http://www.livernoismotorsports.com/product.phtml?p=457
Cost: $499
Livernoise Advertised Rear Wheel Horse Power: 35 on a stock application (consider avg of 15% driveline loss on Manual Cars roughly 40 Flwheel Horse Power)
Requires no Installation Kit, Everything included.
Comments: "During testing we have seen as much as 35 rear wheel horsepower on a stock application. Tuning may be required due to the increase of airflow from the Non-PI Intake manifold." "The new kit uses specialized adapter plates, a modified intake manifold (un-modified manifold will not clear stock hood), and gaskets to make it a direct bolt on with limited alterations."
Total Cost: $499
Total Possible Horse power Flywheel hp 40+ off stock applications. need to call and find out what "Stock Applications" mean.
Horse power per dollar spent: $12.48


PI Intake, using RTV sealant http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=6125
Cost: $209
Non Advertised but forum agreed apon flywheel horse power: 20
Comments: "Additional modifications and parts required"
Total Cost: $209 + sealant
Total possible horse power: 20
Horse power per dollar spent: $10.45






P-51 Intake
Not sure if in can be fitted on 96-98 GT's. But it rocks for 99-04 GT's.




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[quickstang_1994]

frpp is made for their head not npi. The rest is how much money you want to spend.

 

[caseypayne69]

What do you mean? I'm pretty sure FRPP heads will fit on to 96-98 heads.

 

[Jrgunn5150]

The FRPP intake is a direct bolt on to NPI ports, it's just better coupled to SVO heads, which match the NPI water passages as well.

 

[quickstang_1994]

for not much more you can get a frpp blower. the new aluminum intakes will fit with rtv and they probably flow better or just as good as frpp intake

 

[Jrgunn5150]

for not much more you can get a frpp blower. the new aluminum intakes will fit with rtv and they probably flow better or just as good as frpp intake

I won't disagree with that, but the FRPP is the one and only aftermarket intake for NPI cars, probably will always be the one and only, and man imagine if you had one on your car 30 year's from now..

 

[quickstang_1994]

the blower replaces the intake. If I used their intake it really needs the heads.

 

[freefallin98]

Every body chill out for a second. Will the FRPP intake fit MY npi heads? If not, what are the necessary steps to make it work?

 

[caseypayne69]

It should mate right up, but make sure you purchase the gasket kit from Ford. And if I'm not mistake the FRPP intake is on back order or always seams to be. So no one is interested in the livernois kit with the advertised 35 rwhp? I believe they are boasting a bit much without dyno sheets but still.

I believe the Livernoise kit is referring to Super charged applications with the 35rwhp. I personally, wouldn't expect more then a normal PI intake with goo. On a personal note, I still prefer the frpp intake.

 

[sanchezcruz_20]

It should mate right up, but make sure you purchase the gasket kit from Ford. And if I'm not mistake the FRPP intake is on back order or always seams to be. So no one is interested in the livernois kit with the advertised 35 rwhp? I believe they are boasting a bit much without dyno sheets but still.

I believe the Livernoise kit is referring to Super charged applications with the 35rwhp. I personally, wouldn't expect more then a normal PI intake with goo. On a personal note, I still prefer the frpp intake.

I gained 35+ rwhp at 5500rpms naturally aspirated with the Livernois PI Intake Kit. It's expensive, but it works.

 

[quickstang_1994]

at higher rpms you will again more power. Look at the curve not the peak.

 

[freefallin98]

SO...what you guys are saying is: I could purchase and 99+ P.I. intake and it WOULD bolt right up to my NPI heads? Also, Let's just say I run the P.I. intake with my stock npi heads. Could I run a stage II Comp or VT Cams? I would be looking at like 50 or so rwhp out of that swap eh? :-\

 

[Pennywise2]

Save your money install a PI intake useing the RTV method
works fine when done correctly.

 

[97stanger]

my buddies had problems with rtv...i got the livernois kit and picked up what was it 25rwhp mid range, more like 40something at the peak. i would suggest the kit, but ive read about guys just rtv'ing it and being fine. but definately just grab a PI manifold. car will pull great up top.

 

[freefallin98]

yeah i really want to put a p.i. intake on but i want to run like a stage II cam also... what do you guys think? :-\

 

[Jrgunn5150]

I RTV'd mine, it was fine, just be careful. However, you still can't put pi cams in NPI heads without either machine work or offset retainer's.

I beleive the SVO intake is actually discontinued, that's why it's always on "back order", Ford is too busy making overpriced 3 v parts now to bother with us.

I have seen the dyno sheet for the Livernois kit, It did add 35 rwhp on a NPI car with exhaust and an accompanying tune, partially due to the tune, but also probably due to the air not hitting a wall of port mis-match as well.

 

[caseypayne69]

Surely, the FRPP intake produces more all around hp then the PI intake. I would think it would for the price tag.

 

[Jrgunn5150]

I'm sure it does, but it's so rare I can't point to any evidence.

 

[Dalamar]

SO...what you guys are saying is: I could purchase and 99+ P.I. intake and it WOULD bolt right up to my NPI heads? Also, Let's just say I run the P.I. intake with my stock npi heads. Could I run a stage II Comp or VT Cams? I would be looking at like 50 or so rwhp out of that swap eh? :-\

50? maybe...

Here's more info on the swap yoru asking about:
http://www.sn95forums.com/forum/index.php?topic=11825.0

 

[DropTopPony]

yeah i really want to put a p.i. intake on but i want to run like a stage II cam also... what do you guys think? :-\

VT does not make a NPI grind and the only PI cam that works is the stock...if you want to run PI aftermarket Cams in a NPI head you will need to have work done to them first.