Comp Cams 262ah

100GT03 · Jun 18, 2010

Im looking at getting these cams for my 03GT and i was wondering if anyone had these and would let me know there experience with them?.i just dont wanna spend all the money to get the cams and then get them in and be disappointed with the results..thanks for any help.

nyuk98gt · Jun 18, 2010

100GT03:

What goals do you have for the car? That's the big question that, once answered, will tell you what kind of cams you need.

The 262AH's make good power from low RPM to 'almost redline'. They don't require springs either. They do not require a lot of tuning to get idle perfect. If you want a dragstrip terror then look for something that moves the powerband up but then you need to spend time tuning to get the idle working properly. IMHO, the 262's are under-appreciated by the Mustang community.

For bigger cams, check out Nick's site, modularheadshop.com. He has done a lot of research and his cams are very impressive. HiTech makes nice cams, too. Run some searches and you will have a lot of reading to do, lol.

HTH,

Chris

trinity_gt · Jun 18, 2010

I've got them on mine. Pre-blower the car gained 30HP at redline from these cams and didn't lose a thing down low. The idle has a bit of lumpiness but it's not objectionable. As nyuk said, they don't require springs and they idle nicely.

They're not as aggressive as some but I think they (or cams with similar grinds) are the perfect cam for a mildly-modded, daily driver GT. Really, any bigger cam is going to require more revs than the stock block is good for, will need springs and moves torque out of the low-RPM band, a place that the 281-CID modular really needs to at least maintain.

I think they suit the PI heads well and even passed emissions testing here (sniffer) with the OR H-pipe in place.

COramprat · Jun 19, 2010

It's a nice boost that you can feel but you will need a tune to get the full effect. I gained in the neighborhood of 30HP on a conservative tune.

sneaky98gt · Jun 19, 2010

How are they with fuel mileage?

Back when I was just a young lad, before I had ANY mods on my car, I was strongly considering the 262AHs. Now that I have the blower and bolt ons done, and because of the non-intercooled blower, I only have a few options left to gain more power without sacrificing driveability and fuel mileage: pulley and meth (don't really want to have to refill with washer fluid every gas fill up), nitrous (power isn't always there), and cams (but I might loose fuel mileage, which I don't want to do). Any of you guys running these cams, did you notice any change fuel mileage wise before and after with these cams?

Trinity_GT, how much power do you think I'd make over my current setup? 35 rwhp?

trinity_gt · Jun 19, 2010

sneaky98gt said:
How are they with fuel mileage?

Back when I was just a young lad, before I had ANY mods on my car, I was strongly considering the 262AHs. Now that I have the blower and bolt ons done, and because of the non-intercooled blower, I only have a few options left to gain more power without sacrificing driveability and fuel mileage: pulley and meth (don't really want to have to refill with washer fluid every gas fill up), nitrous (power isn't always there), and cams (but I might loose fuel mileage, which I don't want to do). Any of you guys running these cams, did you notice any change fuel mileage wise before and after with these cams?

Trinity_GT, how much power do you think I'd make over my current setup? 35 rwhp?

My fuel mileage pre-blower didn't really change with them. I mean, if I used the additional power available at 4500RPM a lot, I'd see a drop naturally but for daily driving, no, no change to speak of.

I don't know if 262AHs are directly compatible with NPI heads. You might want to check with Comp to see if there'd be any mechanical issues (e.g. lift at the valve and retainer/seal interference?) or springs. If not, Comp has the 262H for NPI heads... The major problem with the NPI head is really the exhaust port. It stalls at ~0.350 lift so additional lift isn't going to give much more flow. I'm not certain what additional power to expect from these cams on a blown NPI car. My gut says that 35 sounds kinda high. Perhaps someone with such a combo can chime in.

sneaky98gt · Jun 19, 2010

trinity_gt said:
My fuel mileage pre-blower didn't really change with them. I mean, if I used the additional power available at 4500RPM a lot, I'd see a drop naturally but for daily driving, no, no change to speak of.

I don't know if 262AHs are directly compatible with NPI heads. You might want to check with Comp to see if there'd be any mechanical issues (e.g. lift at the valve and retainer/seal interference?) or springs. If not, Comp has the 262H for NPI heads... The major problem with the NPI head is really the exhaust port. It stalls at ~0.350 lift so additional lift isn't going to give much more flow. I'm not certain what additional power to expect from these cams on a blown NPI car. My gut says that 35 sounds kinda high. Perhaps someone with such a combo can chime in.

Ok, that's what I was thinking about those cams (fuel mileage wise). I know that once you get to a certain point of wildness, the fuel mileage begins to decrease a good bit.

Yea, after I posted this, I started looking at some other threads on other forums; some of the folks say they will work fine, some say they won't. I was thinking that the 262AHs would work problem free in the NPI heads, but because at least a few people say they won't, I probably won't be getting them.

The 262Hs and 268Hs are still a possibility also. I actually bought a set of 268Hs about a year ago to put in, but the seller tried to screw me and sent two different cams. Big ordeal with them, and Ebay finally sided with me and I got my money back (besides the shipping). And I had to settle with little ole PI cams... But I still may get a set of the 262s or 68s one day.

100GT03 · Jun 20, 2010

i want some cams that are gonna give me some power and also sound good too...i have about 145,000 miles on my car so a huge cam isnt really what im looking at cause i dont wanna move my powerband up in the rpms but i love the way cams make the car sound and the help of some added horse will be nice. thanks for the help.

COramprat · Jun 21, 2010

262's won't really give you a noticeable lope...well it does but is very subtle. You don't buy cams for sound anyway but to be practical I'd go with something like a 262. Nice HP bump without the challenge of swapping valve springs. I installed my cams at 170,000 miles ( I think) and now have 230K. Never had an issue...

100GT03 · Jun 24, 2010

after putting the cams in your car was it a noticable improvement in horsepower?

nyuk98gt · Jun 26, 2010

100GT03:

MM&FF or 5.0 did a "Comp Cams cam shoot-out" several years ago (it was late in the year but I can't remember the year) for 2V cars. Not to sound snotty but all of the aftermarket cams produced sizable gains in RWHP. The more aggressive cams produced power at higher RPM but tended to lose a little torque below 3000 RPM (so, in the 'around town' operating range). The article concluded that the 262's were the best all-around cams: great street performance because they got working early and quite respectable at the track.

Don't get too hung up on numbers. Bigger may be better but if bigger happens at 6500 RPM and you don't go to the track all that much then you might not be happy with your big cams. I will dig around for the article.

Chris

trinity_gt · Jun 26, 2010

Back then I definitely noticed that around town the car didn't feel much different around town except for additional idle roughness at the lights. But when I dialed in some RPM, like on a highway on-ramp or when passing someone the car didn't feel like it was dying as the tach passed 5000RPM. It just felt stronger up there, like the pulling wasn't letting up.

It's not like your tires are going to start spinning after 5K but, post-cams, the car actually vaguely reminded me a bit of a Mach 1 (4 valve) I'd test driven once. Not quite as effortless and turbine-like but you could tell it was still breathing at redline...

Midnight2V · Jun 26, 2010

Regarding the MMFF article, they used a set of TEA fully ported heads with notched pistons in them. Comp's profiles work best in heads already ported. Their LSA and ICL are not ideal for stock heads. Give Nick at modular head shop a call and see what he can do for you. Don't get me wrong, they are great cams, but they may not be the best match for you.

nyuk98gt · Jun 26, 2010

Midnight2V:

That's good advice. Nick offers some excellent cams, imho. The OP did ask specifically about the 262's so that is why I didn't deviate off topic too much. Lastly, thanks for the details about the article.

Chris

97gtstang01 · Jun 18, 2016

Anyone have them degreed? My install is not up to par. Getting a ticking sound

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Dsg40th · Jun 26, 2016

I ran a set of 262AH's in my 04 GT I also put the comp springs in too. My car was an automatic. The mods were trick flow upper plenum, 75mm throttle body, UPR CAI, BBK shorty headers, SLP catted X pipe, Maganaflow magna pack cat back. With the automatic it made 268 RWHP at the time with stock 3.27 gears and a custom SCT live wire dyno tune for 87 octane gas. All combined it was a decent bump in power but not earth shattering. Gas milage dropped considerably in city driving but was still decent in the highway. I has occasional stalling problems with the A/C running and if I made too quick of a stop with the automatic, which was annoying.

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Dsg40th · Jun 26, 2016

The idle had a mild lope to it which sounded nice too. But I feel it was a lot of labor and money for not very huge gains in power. I might have picked up 30 or 40 rear wheel horse with all the mods combined with the cams.

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COramprat · Jun 26, 2016

97gtstang01 said:
Anyone have them degreed? My install is not up to par. Getting a ticking sound

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I had a ticking sound with mine too. Seems like the valve train gets a little noisy after the install. Never had any issues though. Had 50K miles on the install before the car was totalled.

97gtstang01 · Jun 26, 2016

COramprat said:
I had a ticking sound with mine too. Seems like the valve train gets a little noisy after the install. Never had any issues though. Had 50K miles on the install before the car was totalled.

Did the ticking ever go away? And mine dies if I rev it up. It's got a bama tune on it as well.

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COramprat · Jun 26, 2016

97gtstang01 said:
Did the ticking ever go away? And mine dies if I rev it up. It's got a bama tune on it as well.

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Never went away.

If it dies while revving you have something else going on. Did you do the install or a shop?

Comp Cams 262ah

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