Please post your numbers and Dyno sheet. GO head put all your other mods too. I wondering how HOT cam repsone to differnet mods. If some body have audio clips please put it up
Thanks in advance

 

I could post my Dyno sheet but I dont know where to post it at. Who provides free pic hosting anymore?

RWHP 349.5 @ 6400
RWTQ 351.6 @ 4500

Stock Heads, LT4 Hot Cam Kit, Stock MAF sensor with screen, PCMFORLESS Program, 4.10, Custom CAI, !cats, !air, !egr

 

I just picked up my LT4 production cam today. It's the same one found in the 1996 Corvettes. I was advised NOT to go with the LT4 Hot Cam because it would need computer recalibrations and wasn't emissions legal.

Does anyone just have the basic LT4 production cam installed? If so, can you post some numbers?

Also, I'm ordering a set of Crane Gold 1.6RRs and LT4 valvesprings to go with the cam. I've ordered an aluminum driveshaft, and I'm picking up an SLP Loudmouth, AS&M headers, 3.73s, Art Carr carrier, and Vigilante 2400 stall (and a trans cooler).

Can anyone give me an estimate on what kind of numbers I should be putting out? Estimate on 1/4 times? Any help would be great.

 

or you can em ail me mir@torquecentral.com

 

Not sure if I'd go to the effort for a stock LT4 cam, but to each his own. The 1.6RR's will make more difference than that cam will I think...

As for emissions legality... the LT4 production cam isn't legal in your engine either... technically speaking. Many people pass emissions with the LT4 Hotcam or the Comp Cams 305 and a good computer program.

As for advice, the cam install is long and tedious. I'm doing mine right now. Unfortunately paying someone to do it is also very costly *sigh*...

-Michael

 

From what I've been told it is emissions legal, and you can go a step higher and still pass I believe....

My #s are in sig. I need a tune and I had a lot of knock. New #s on May 29th!

 

Whoever was your advisor obviously doesn't know very much about these engines/cars. That cam is so tiny that it is going to be a complete waste of time to upgrade. I have a 305 cam in my car that drives like it is completely stock! You will probably only pick up like 10hp with that cam alone.

 

Actually, the "advisor" is pretty competent in the field of the late-model Fbodies. I basically told him what I was looking for, and he gave the recommendations.

I told him I was interested in a Hot Cam setup, and he basically told me that it would take major computer recalibrations to get it to run right, plus there was a good chance it would not pass emissions because the Hot Cam is an "offroad" cam.

I'm not looking for the biggest cam I can throw in an LT1, or the biggest possible gain. I'm looking for something that's going to give it a little bit more power, and will comfortably sit in traffic and drive like a stocker without any hiccups.

I told him I was looking to make hp figures in the 330-360hp range. No, it won't be a track terror, and it's not a track terror that I'm looking for with that car. I've already got something else in mind for a big project to go *****-out on.

I'm "restoring" the Camaro back into its former glory, but I just want a little bit extra on the side. As far as doing the cam now, or the other parts, I'm not even going to waste the time until the motor is ready for a rebuild. I've got 135,000 on the car now, and the motor puffs no smoke, and not even a hint of knock. There's no sense in doing a "premature" rebuild if it isn't needed. I'm just buying parts right now.

To get back on the subject of hp figures, if I'm correct, the LT4s were rated at around 330hp, but in actuality they were making closer to 350hp. That's plenty to be reliable and fun at the same time.

 

Now i know he doesn't know what he is talking about! Major tuning to get the car to run right with a hotcam??? That doesn't even make sense. You would get much more hp with a hotcam with NO tuning then you are going to get with your little cam TUNED and the hotcam will have completely stock drivability even without tuning. My buddy passed emissions with the hotcam and he has no tuning. Why would this guy advise you to get this cam when it is basically going to give you NOTHING if he knew what he was talking about? Anyways, just don't want you to do all this work for that cam and then regret it when you are done and it drives exactly like it did before the cam.

 

Thanks for lookin' out for me Krein. I appreciate the response. I don't get why someone would recommend something that wouldn't work though. He's a very knowledgeable person when it comes to motors and what-not, but I guess I don't understand why he's saying to go against the Hot Cam setup.

I ended up ordering it from a dealer in DE. Think I could return it? Hell, I dunno. I've heard so many conflicting stories on cams it's unreal.

I'm not passing judgement on you Krein, as I've never even seen you here, but I'm very careful about what I believe coming from CZ.com. The last time I took heed to peoples' recommendations on a transmission shop through members of CZ.com, they turned out to be some cheap-skate rip-off low-rent shop in the rectum of Baltimore. "Transmission specialists" my ***. I would have had better luck rebuilding the thing myself. The only thing they specialized in was screwing me out of my $1300.

 

Also, remember that the LT4 engine isn't an LT1 with a "bigger"cam in it. It has a totally different intake, heads, and on the stock exhaust manifolds it adds close to 10hp over the stock LT1 manifolds alone. The whole upgrade, heads, intake, cam, and manifolds=~45hp...look it up. I know this because a friend did it and was very upset for what he spent. And for the "hot cam" not passing emissions is b.s. They pass in Houston all of the time with little or no tunning. Word to the wise for the most effective and efficient upgrades for the money...get a second opinion.

 

That's the thing, Penny. I've heard so many different contradicting stories I don't know what to believe.

It's become one of those "Don't feed me bullsh*t and tell me it's chocolate icecream" type things. I guess when in doubt, don't listen to anything.

 

Yeah, I'm with everyone else who says your "advisor" isn't giving you very good advise. The production LT4 cam is actually very slightly smaller than the LT1 cam. You would be better off leaving your stock cam in and go with the 1.6 rockers and springs if you're really that worried about computer recalibration/emissions. I can tell you first-hand that a cam swap is a royal PITA, so my advise would be to go with something with at least a little "size" to it.
BTW, Crane makes an emissions-legal cam; specs as follows: 280/280 adv. duration, 218/218 duration @ .050, .498/.498 lift w/1.5 rockers. There are quite a few other cams that will pass, you just need to look around and do some more research on the subject. Use the "search" function on this board and you'll find pages upon pages of material on cams.

 

Dan, I'm kinda going through the same thing as well. To tell you the truth, this board has been very helpful in answering my questions. After looking at all of my options, I went with the "hot cam". I have heard and drove in on many cars, and it is really close to stock...except you can feel quite a bit of power in mid to high band. I really like the way it drives and can't wait to put it in my camaro. Good luck with the cam thing, you know you can get the whole set up for under $500 buck and that includes rr's, springs, retainers, cam, etc...it is a good deal...Good luck.

 

Ya know what.....f*ck it. Maybe I'll just return the cam. Can I return it? It was an ordered item.

I just want to do something that is worth my money and is worth the while. I don't want anything ludicrous, but I do want something I will be happy with (obviously). I do want some more power on the top end as well.

Yes, I do know I can get the setup for under $500. That was what I was originally going to do, until advised otherwise. The deal I got on the production LT4 cam was $193. I thought that was a pretty good price.

I was looking at the cam specs today, and compared them to the LT1 cam specs, and to be honest, I didn't see a significant difference on either the intake or exhaust sides. I was asking a few people about it and they said that the numbers weren't really a big issue, and the main issue is how the lobes are shaped and what-not.

I've gotten beyond the point of frustration now. Now I'm just so damned confused and pissed off it's unreal.