Speedinc TU2
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From: Home town Clive,IA current town FORT BENNING GEORGIA
Speedinc TU2 Hey guys just looking for a little input on this cam, i just bought it lastnight and am wondering how it is exactly. Is this a good boost cam how many would recommend it.
my set up is:
402ci
317's
t6 flange hot side
ls6 intake
gt88 or 91
and 3.50 gear
if anyone one could post a couple sound clips or give me any input on how it feels/does with boost boost id appreciate it
my set up is:
402ci
317's
t6 flange hot side
ls6 intake
gt88 or 91
and 3.50 gear
if anyone one could post a couple sound clips or give me any input on how it feels/does with boost boost id appreciate it
The TU2 will work decent, i'd still prefer to have a bigger cam in a 402, but if it's a street car it will have good street manners and get the job done. A friend of mine has that cam in his 408 and it has good street manners and went 158 mph in the 1/4 on about 20 psi from a couple of turbonetics 67mm turbos, wasn't too shabby.
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Thread Starter
TECH Enthusiast
iTrader: (4)
Joined: Apr 2008
Posts: 525
Likes: 0
From: Home town Clive,IA current town FORT BENNING GEORGIA
its just the point being that i wanted an ls6 cam and decided to work my way up i didn't want something to big. but i did want something that would still give me some lope as well as react good with boost
i ran a tu2 on a 396 ane a 408, cam made 1000rwhp through a th400 and 9inch with a s91, pm if you would like the cam, its for sale and has 50 passes on it., i went to a pt101mm turbo and more cubes so it wont work for me anymore.
That is a great turbo cam.
Most people try to over cam turbo cars. With a turbo car you want as little overlap as possible, with the tighetest lsa you can get away with to help build boost.
As you saw where phil posted in the how to stage an auto turbo car that advancing the cam will allow the turbo to spool faster.
Also with a turbo car SCR is crucial as it helps with cylinder filling and building boost.
I don't think you will be dissapointed with that cam and it should have great manners in a 402.
Most people try to over cam turbo cars. With a turbo car you want as little overlap as possible, with the tighetest lsa you can get away with to help build boost.
As you saw where phil posted in the how to stage an auto turbo car that advancing the cam will allow the turbo to spool faster.
Also with a turbo car SCR is crucial as it helps with cylinder filling and building boost.
I don't think you will be dissapointed with that cam and it should have great manners in a 402.
I run this cam in a 418 and can't say anything but good about it. My tq comes on huge and I don't have to rev the car out at all. My power does pk pretty early and tapers off a little which I would assume is from the cam being so small in the 418. But the drivability is amazing and I made great numbers so far
418 ls3
dart pro1 heads
ls6 intake mani
FI S-88
Pk hp is listed at bottom right of the graph and it drops off early because I let off the gas not because it runs out. On other pulls I ran it to 6700 and it holds the power to the top. I had really soft timing and rich A/F which was not helping.
But needless to say I was really happy as this is on 12.5lbs/pump gas
418 ls3
dart pro1 heads
ls6 intake mani
FI S-88
Pk hp is listed at bottom right of the graph and it drops off early because I let off the gas not because it runs out. On other pulls I ran it to 6700 and it holds the power to the top. I had really soft timing and rich A/F which was not helping.
But needless to say I was really happy as this is on 12.5lbs/pump gas
Single pattern cams with relatively tight lsa's (112-114) seem to be the way to go now a days on turbo cars as they keep the scr up which promotes better cylinder filling thus really helping to give the turbo a kick in the pants in the spooling department down low. Single pattern's seem to like headers feeding the turbo, while small split reverse grinds seem to help a truck/c6 manifold set-up better. Although as long as you don't have a big traditional split cam with a really tight lsa and you err to the small side with the aforementioned attributes I talked about above no choice would be wrong.
These are observations I have made on the big player's cams and also what I have heard from one or two VERY well renowned and respected cam guru's out there this same information.
My cam is a old grind TR came out with a long time ago, yet it works because it sticks to those guidelines for a manifold set-up. I'd say 50% plus people can't even tell my car has a cam. Now I do have a Dynomax 3" bullet in the I-pipe and a Dynomax Ultra Race Magnum 1 chamber muffler 3" inlet/dual dual OTL 2.5" outlets keeps it really mellow until I get on it.
In short, all the speed inc cams stick to these principles also and they work time and time again. Good choice can't wait to see what this baby makes and runs!
These are observations I have made on the big player's cams and also what I have heard from one or two VERY well renowned and respected cam guru's out there this same information.
My cam is a old grind TR came out with a long time ago, yet it works because it sticks to those guidelines for a manifold set-up. I'd say 50% plus people can't even tell my car has a cam. Now I do have a Dynomax 3" bullet in the I-pipe and a Dynomax Ultra Race Magnum 1 chamber muffler 3" inlet/dual dual OTL 2.5" outlets keeps it really mellow until I get on it.
In short, all the speed inc cams stick to these principles also and they work time and time again. Good choice can't wait to see what this baby makes and runs!
