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FP3X cams,,,,what do you guys think

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chuckdog_5

20+ Year Contributor
1,338
0
Oct 23, 2002
San Diego, California
allright guys, i went ahead and got it over with, i bought a race head and i decided to go with the forced performance 3x cams. i just wanted to get some opinions from you guys that have them on what you think so let me hear it.

charles
 
You ordered cams without doing any research first? Are you running a 2.0, 2.1, 2.3, or 2.4? Who's "race head" did you purchase?
 
no i researched a lot, im running a stock 2.0, don down at polk is going to do my head and he reccomended the cams over the 272s for what i want. i just wanted to get personal opinions
 
Good cams if you have the right set up. What turbo will you be running? The 57trim or are you upgrading?
 
You don't have the right setup for them cams. You need a 2.3L or 2.4L to take full advantage and their upgraded spings. If you running 2.0L you need Fp2 or Fp2X.. better than 272..IMO I running Fp2 myself.
 
chuckdog_5 said:
no i researched a lot, im running a stock 2.0, don down at polk is going to do my head and he reccomended the cams over the 272s for what i want. i just wanted to get personal opinions

Don recommended the FP cams or Don recommended specifically the 3X line? You need to be more specific if you're going to quote someone.
 
Mindslayer said:
You don't have the right setup for them cams. You need a 2.3L or 2.4L to take full advantage and their upgraded spings. If you running 2.0L you need Fp2 or Fp2X.. better than 272..IMO I running Fp2 myself.
How do you know he's not running their upgraded springs? And how do you know his setup isn't right for those cams? I'll answer the 2nd question for you, you don't know cause you've never run those cams in a 2.0. Though the FP3x cams were intended for strokers who's to say they won't work well on a 2.0L. I know plenty of people running the FP3s in a 2.0L and they work fantastic with the nice square lobe design with decent lift. The 3x is a much larger cam but its barely more aggressive than a crower 415, and their are quite a few members running the 415s in a 2.0L with great success.

Chuckdog_5, I have been researching large cams in a 2.0L for the last two months, and the cams I am specifically researching were the crower 415s, and the 3x cams. No one I have found runs a 3x in a 2.0L, but I wanted to try but just haven't come around to getting them yet. From my research their are numerous 2.0L cars running the crower 415, which is a damn large cam, and they make great peak power with flat torque, but I think that is on low boost. Let us know what kinda success you have with them. Personally I think they'll run their ass off topend, but you'll have to see what torque is like up top on high boost to tell exactly what they do compared to a FP3 or a 2x.
 
1SloColt said:
How do you know he's not running their upgraded springs? And how do you know his setup isn't right for those cams? I'll answer the 2nd question for you, you don't know cause you've never run those cams in a 2.0. Though the FP3x cams were intended for strokers who's to say they won't work well on a 2.0L. I know plenty of people running the FP3s in a 2.0L and they work fantastic with the nice square lobe design with decent lift. The 3x is a much larger cam but its barely more aggressive than a crower 415, and their are quite a few members running the 415s in a 2.0L with great success.

Chuckdog_5, I have been researching large cams in a 2.0L for the last two months, and the cams I am specifically researching were the crower 415s, and the 3x cams. No one I have found runs a 3x in a 2.0L, but I wanted to try but just haven't come around to getting them yet. From my research their are numerous 2.0L cars running the crower 415, which is a damn large cam, and they make great peak power with flat torque, but I think that is on low boost. Let us know what kinda success you have with them. Personally I think they'll run their ass off topend, but you'll have to see what torque is like up top on high boost to tell exactly what they do compared to a FP3 or a 2x.

Forced Performance themselves has said on several occassions that you'll see better performance from the FP2 cams than the FP3 cams in a 2.0. If you're running the 3x you HAVE to have dual springs. FP recommends the FP2 cams for a drop-in replacement on the 2.0, and the FP2x for a drop-in with upgraded springs.
 
rob told me himself that hes seen fp2x's float at 8500-9k with a 80-85lb seat pressure. And thats about a crower/manley setup at 1.520 height. Dual springs really are necessary, but i also wouldnt suggest fp3's on a 2.0. Go with the FP2x's over 3x's IMO.
 
FP reccomends the 3X's on large turbo (75+ lb/min) applications for 2.0 liters.
 
huafist said:
Forced Performance themselves has said on several occassions that you'll see better performance from the FP2 cams than the FP3 cams in a 2.0. If you're running the 3x you HAVE to have dual springs. FP recommends the FP2 cams for a drop-in replacement on the 2.0, and the FP2x for a drop-in with upgraded springs.

They told me themselves that the 3x will make more power than the fp2 even on a 2.0. They cost the same no matter what so why would they lie about it?
 
1SloColt said:
How do you know he's not running their upgraded springs? And how do you know his setup isn't right for those cams? I'll answer the 2nd question for you, you don't know cause you've never run those cams in a 2.0. Though the FP3x cams were intended for strokers who's to say they won't work well on a 2.0L. I know plenty of people running the FP3s in a 2.0L and they work fantastic with the nice square lobe design with decent lift. The 3x is a much larger cam but its barely more aggressive than a crower 415, and their are quite a few members running the 415s in a 2.0L with great success.

Chuckdog_5, I have been researching large cams in a 2.0L for the last two months, and the cams I am specifically researching were the crower 415s, and the 3x cams. No one I have found runs a 3x in a 2.0L, but I wanted to try but just haven't come around to getting them yet. From my research their are numerous 2.0L cars running the crower 415, which is a damn large cam, and they make great peak power with flat torque, but I think that is on low boost. Let us know what kinda success you have with them. Personally I think they'll run their ass off topend, but you'll have to see what torque is like up top on high boost to tell exactly what they do compared to a FP3 or a 2x.


Wow an actual answer. I will definitly let you know when im done, may be another month or two. let me know anything interesting you find out. first off guys, im running a 57trim turbo with a 20g exhaust housing, and yes i am doing the required dual springs. since my post is about the fp3x cams, when i said don reccomended these cams over the 272s, i figured common since would of set in that he was speaking of the cams i was. anyways, yes i know that these cams are mainly for stroker motors, i spoke with a guy from FP and he said i would be fine with these cams, obviously more aggressive but not going to cause me problems.
 
So you called FP, told them you are running a turbo this small on a 2.0l, and they told you the FP3x would be fine? I call BS.

For the record, I am running the FP3 cams in my 2.0l with aT67/P trim and my car just made a noticeable improvement in spool and peak power over 272s. My car has been on a few different dynos so I can't offer direct comparisons but I will say that the improvement was well worth it.
 
Mike 99GSX said:
So you called FP, told them you are running a turbo this small on a 2.0l, and they told you the FP3x would be fine? I call BS.

For the record, I am running the FP3 cams in my 2.0l with aT67/P trim and my car just made a noticeable improvement in spool and peak power over 272s. My car has been on a few different dynos so I can't offer direct comparisons but I will say that the improvement was well worth it.


allrite look, sorry you were in on the conversation, but dont sit there and call me a liar, instead you should think that the guy from FP didnt know what he was talking about instead of assuming i made this up because we all know i sit at home and try to think of ways to impress everyone on tuners :toobad:
 
huafist said:
Forced Performance themselves has said on several occassions that you'll see better performance from the FP2 cams than the FP3 cams in a 2.0. If you're running the 3x you HAVE to have dual springs. FP recommends the FP2 cams for a drop-in replacement on the 2.0, and the FP2x for a drop-in with upgraded springs.
Show me one single solitaire piece of evidence of FP saying that and I will believe it. Common sense dictates a bigger motor letting you run a more aggressive cam
(pulls more vac). I could see more driveabilty problems runing the bigger stuff on a 2.0, but not less performance. Show me where FP said you would have better performance on a 2.3 with these cams than you would a 2.0.
 
Mike 99GSX said:
So you called FP, told them you are running a turbo this small on a 2.0l, and they told you the FP3x would be fine? I call BS.

For the record, I am running the FP3 cams in my 2.0l with aT67/P trim and my car just made a noticeable improvement in spool and peak power over 272s. My car has been on a few different dynos so I can't offer direct comparisons but I will say that the improvement was well worth it.

Call bs all you want but you may want to contact them for yourself and see what they say. They told me they would work great with my setup on a 2.0, and as I stated above, why would they do that when they cost the same!
 
GILZTSIAWD said:
Call bs all you want but you may want to contact them for yourself and see what they say. They told me they would work great with my setup on a 2.0, and as I stated above, why would they do that when they cost the same!


I HAVE talked to them at length about it. I was specifically told the FP3x was way too much cam for my setup which just made short of 700whp on boost with what they called a "medium" sized turbo. I was told the 3x was for 85 lb/min type combos and up.

Also, like I said, people that are saying the FP3 isn't a good choice on a 2.0l haven't seen what I have recently. Have fun guys.
 
GILZTSIAWD said:
Call bs all you want but you may want to contact them for yourself and see what they say. They told me they would work great with my setup on a 2.0, and as I stated above, why would they do that when they cost the same!

Maybe to try to get you to buy the dual valve springs too :confused: . Afterall, it is a business, and at the end of the day its all about how much they sell not how much they've helped the dsm community.....only a possibility, but a very probable one.

I myself choose the FP2x's with dual valve springs, to ensure that I'll be ok when rev'ing to 9K. I finally got my hands on a Magnus SMIM, so we'll soon see how well they pull up top. BTW the turbo I have is an FP RED, so its only a mid-sized turbo :cool:
 
2deep said:
I myself choose the FP2x's with dual valve springs, to ensure that I'll be ok when rev'ing to 9K. I finally got my hands on a Magnus SMIM, so we'll soon see how well they pull up top. BTW the turbo I have is an FP RED, so its only a mid-sized turbo :cool:

are the FP2x's making you happy? i considered them as well, i want something stronger than the 272s, i thought the FP2xs were about the same but im not a 100% sure. i am starting to consider going a step lower, does anyone have any info on the FP4's or heard anything about them. FP's numbering scheme doesnt make sense, so i have been trying to figure out what order they go in as strongest to weakest, i think i got it

FP3X
FP4
FP3
etc...

can anyone confirm or correct me?
 
chuckdog_5 said:
are the FP2x's making you happy?

I have no complaints about them, but in all fairness I was coming from stock cams.

I just got a SMIM, so once that's on we'll really see how well she does up top. But to be honest with you, I'm sure I won't be feeling the need for more cam right away.
 
2deep said:
I have no complaints about them, but in all fairness I was coming from stock cams.

I just got a SMIM, so once that's on we'll really see how well she does up top. But to be honest with you, I'm sure I won't be feeling the need for more cam right away.

SMIM?

do you think the fp2x's are more aggressive than the hks 272s?
 
Good point, never thought about that part, but they did tell me that the dual ss springs would be fine too, but they probably thought that I would buy their's instead. Oh well, too late now, just waiting to get enough to get springs and all that :)

2deep said:
Maybe to try to get you to buy the dual valve springs too :confused: . Afterall, it is a business, and at the end of the day its all about how much they sell not how much they've helped the dsm community.....only a possibility, but a very probable one.

I myself choose the FP2x's with dual valve springs, to ensure that I'll be ok when rev'ing to 9K. I finally got my hands on a Magnus SMIM, so we'll soon see how well they pull up top. BTW the turbo I have is an FP RED, so its only a mid-sized turbo :cool:
 
Does anyone know what the max safe rpm limit of the Fp3x/fp dual spring combo is? With a mid to large size turbo setup (T67, T72 w/GTQ turbine) & large ports, revving to 9700-10,000rpm might be necessary on a 2.0L.
 
The fp2x's are more aggressive than 272's. Shit the fp2's showed a 20hp gain over 272's up top. They give up a little low end but shine over 272's up top from the graphs ive seen....
 
BrokenTsi said:
The fp2x's are more aggressive than 272's. Shit the fp2's showed a 20hp gain over 272's up top. They give up a little low end but shine over 272's up top from the graphs ive seen....


thats good to hear, so you would say the FP2xs would be a pretty good jump up from the 272s. any idea on a hp gain on the fp2xs, would the 3's be more agressive or less than the fp2s
 
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