ffrp hotrod cams w/ procharger?

jerzeykilla · Aug 30, 2008

Looked around couldnt find anyone...does anyone have a procharged GT with the Ford Racing hotrod cams?? can it be done? im not trying to bend a valve or anything

DarkFireGT · Aug 30, 2008

It can be done. But the problem is that you don't have a lot of low end torque to begin with, with the SC. The cams would amplify that. You're better off with a custom grind blower cam. If you were roots or ts blown, then maybe.

SpartaPerformance · Aug 30, 2008

I would partially agree, the hot rod cams are good to spin and make power to 6,800RPM so provided you have atleast UDP's they should be a good cam even for centrifugal type chargers...you might need a 3.73 gear to either compensate for lack of low end like DarkFire states if you find it powerless or to pass the traps top of 3rd instead of fourth. Personally I don't like centrifugal chargers on these cars, DarkFire is correct in suggesting a roots/twin screw charger like the FRPP blowers or such as those.

jerzeykilla · Aug 30, 2008

yeah very true...the only reason i chose a centrifugal charger is because its so much less stress on the motor, boost doesnt really kick in till 2300 so it drives normal just crusing. anyways thanks for the imput guys. much appreciated. anyone else have comments?

Five Oh Brian · Aug 31, 2008

I have a centrifugal blower (Vortech V-2, 10.5 psi boost). I see that Comp Cams makes a variety of blower cams for our cars. Here are their current blower cams that I've looked into....

NSR (No Springs Required)....

Stage I has solid gains from 4700-6200 rpm's. Compatible with stock springs. Best with stock gears.

Stage II has solid gains from 4900-6400 rpm's. Works with stock springs. Best with 3.73+ gears & 2500 stall.

VSR (Valve Springs Required)....

Stage I has power gains from 4400-6400 rpm's. Requires spring upgrade. Tuner required, Stock gears & converter OK.

Stage II has power gains mid to upper rpm range. Requires spring upgrade, Computer tuning required. Best with 4.10 gears and or 3000+ stall.

SPR (Springs and Phaser mods Required)....

Stage I has power gains from 4500-6700 rpm's. Requires spring & phaser upgrade. Custom tuning required, Stock gears & converter OK.

Stage II has power gains from 4900-6900 rpm's. Spring & phaser upgrade required. 4.10 gears & 3000+ stall.

Stage III has incredible power gains from 4900-7100 rpm's. Requires spring & phaser upgrade. Custom tuning required. 4.10+ gears & 3200+ stall.

In my case, I have 4.10 gears and my stall converter flashes to 4,800 rpm's, so I would be looking at a Stage II or Stage III cam that would perfectly complement my blower, gears, and converter. Modding a car successfully is all about matching components to a specific operating range (rpm powerband).

As I'm on a tight budget now, I'm leaning toward a stage II NSR cam to keep labor costs way down, while maximizing the 4800-6400 rpm window I'm already set up for (my stall converter flashes to 4,800 rpm's and my redline is 6,400 rpm's, so it's perfect).

I hope this info helps you in your quest.

anthony05gt · Aug 31, 2008

The FRPP hot rod cams are not a real good performance gain cam to begin with. They are mainly for that old school sound. JPC is working with Comp right now testing a new cam set up for forced induction which will have the old school sound too, only they will utilize the phase limiter plates, springs and have the variable valve timing still intact so you won't lose any bottom end power. I know Comp already has F/I cams, but these will be different because of the attempt to get the old school idle in addition to real performance gains in the mid and upper rpm range.

UrbanRedneck · Aug 31, 2008

The FRPP cams also have a lot of valve overlap, which is why they sound so lopey but also not good for an FI car, becaue overlap loses a lot of cylinder pressure, so you are basically just pumping your boost right out the exhaust valve. You want a blower cam that is designed for it, bith wider LSA and less overlap.

jerzeykilla · Aug 31, 2008

anthony....anymore info on these cams? release? casue i have the hot rods on order and not sure if should cancel or keep them

MikeysOTP · Aug 31, 2008

I disagree that the hot rod cams are going to amplify your lack of low end torque since I have them and I didn't lose anything down low. I didn't gain anything down low but I didn't lose anything either.

They are definitely not the best blower cams you can get, but if you want the choppy idle then you are going to have to sacrifice a little. I plan on running a twin screw with these cams but I am not worried that they are not specifically made for a blower since I should still be able to easily reach the limits of the stock internals, even if it takes little more boost than it would with a different cam set.

ranger04 · Sep 1, 2008

I heard the hot rod cams are good for 30 hp on all motor, 60 hp with ported heads. If so, then thats not a bad performance bump. As far as the comp cams, JDM Engineering made 401 rwhp all motor with the new comp cams with phase limiter on a 298 stroker 3 valve and still passed emissions testing on a street legal package. Comp cams are making 3 grinds for n/a motors and 3 grinds for FI motors with the phase limiter. They really sound promising.

ranger04 · Sep 1, 2008

Also C&L is now making the new inatke manifold for the 3 valve that is supost to work well with cams and ported heads and really bring an engine to life with FI.

Vics06 · Sep 1, 2008

I should have my Hot Rod Cams installed midweek along with a custom tune....so will see how they effect a whippled car...I will post up the numbers...

anthony05gt · Sep 1, 2008

The hot rod cams sound great. I'll admit that, but even Justin Burcham's telling me to stay away from them.

MikeysOTP, do you have dyno sheets to show no loss down low? Just curious.

Any cam that's going to make some real serious gains is going to need either the phasers locked out due to the valve lift or phaser limiters which will allow VVT to still benefit performance.

I'm waiting for the next offering that JPC has been telling me about. Right now as far as I'm concerned the Comp sets are the best thing out there because of the phaser limiter plates. Justin told me they were testing a set last Monday. That's all I know about the new cams in the works. I haven't heard anything yet.

Missyandrob2005 · Sep 1, 2008

anthony05gt said:
The FRPP hot rod cams are not a real good performance gain cam to begin with. They are mainly for that old school sound. JPC is working with Comp right now testing a new cam set up for forced induction which will have the old school sound too, only they will utilize the phase limiter plates, springs and have the variable valve timing still intact so you won't lose any bottom end power. I know Comp already has F/I cams, but these will be different because of the attempt to get the old school idle in addition to real performance gains in the mid and upper rpm range.

I will be waiting for some more info on these, im Vortech blown and want the old school sound but I also know JPC's work. Thanks for the post ...

MikeysOTP · Sep 1, 2008

WOW......

FRPPs don't make power?

FRPPs, lose low end torque?

Comps make more power because of phaser limiters?

Hahahahahaha.....

First of all, our cars have cam phasers to make torque, and Comp is telling people that phaser limiters are a good thing?

Show me a dyno sheet from someone with Comp NSR cams that equals or betters these gains on a cam swap only:

Yeah, I didn't think so.

ranger04 · Sep 2, 2008

If you want the dyno sheet for comp cams with phase limiters, contact JDM Engineering. They have the dyno sheet from thier build. It was a 298 3V stroker with the comp cams. They made 401 rwhp all motor on a strre legal package that passed emissions with the comp cams. I'm not going to do the leg work on this one, but if your interested enough, you can do it. My plans are to do the comp cams, and the C&L intake manifold, patroit heads combo. The dyno numbers will be out soon on the intake and the heads. CNLPERFORMANCE.COM

jerzeykilla · Sep 2, 2008

haha hey guys...just got off the phone with ford racing....said they will work fine with my procharger, said i MIGHT lose some torque down low but wont even feel it because of the high torque i already have from the blower. said they sound really badass and work great with the VCT. btw im having Jim Diamore SR. of JDM engineering dyno tune this beast himself. works magic. hes the guy that factory tunes saleen S7s...for saleen.

anthony05gt · Sep 2, 2008

MikeysOTP said:
WOW......

FRPPs don't make power?

FRPPs, lose low end torque?

Comps make more power because of phaser limiters?

Hahahahahaha.....

First of all, our cars have cam phasers to make torque, and Comp is telling people that phaser limiters are a good thing?

Show me a dyno sheet from someone with Comp NSR cams that equals or betters these gains on a cam swap only:

Yeah, I didn't think so.

The Comp phase limiters allow more lift than the FRPP cams are even capable of which makes the limiters necessary on the more aggressive Comp cams to avoid piston/valve collision. If not for the limiters you'd have to lock out the VVT all together. You don't need the limiters or lock out kit with the FRPP cams because they are not that aggressive of a cam. That's why your gains are minimal. Comp only pitches their limiter kit so that your pcm can still ad the benefit of the VVT which like you said ads torque down low by changing the valve timing. These Comp cams are making some real power, but I will admit I haven't seen any dyno comparision of high lift cams with and without phase limiters. The intention of the limiters makes sense though. My only question is, how do the heavier springs affect the VVT which is controlled by engine oil pressure? Will heavier springs adversly affect the VVT? This remains to be seen. Even then, I still say Comp's on top of the 3-valve cam game right now even with the questions.

SpartaPerformance · Sep 2, 2008

Exaclt the Comp cams with pahse limiters made all that power on a STROKED...motor with ported heads. We're talking NSR to NSR cams I believe the FRPP's will be better then anyone elses, so far all the dyno sheets i've seen say avg of 40RWHP...good enough for me.

MikeysOTP · Sep 2, 2008

tommyroc said:
Exaclt the Comp cams with pahse limiters made all that power on a STROKED...motor with ported heads. We're talking NSR to NSR cams I believe the FRPP's will be better then anyone elses, so far all the dyno sheets i've seen say avg of 40RWHP...good enough for me.

Just to be clear though, I only gained somewhere in the 30s. My baseline pull was only to 6,000 and the final pull was to 6250. It was still making power right until he let off too.

ffrp hotrod cams w/ procharger?

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