Help with MTI cam...
Thread Starter
Pro
Joined: Jan 2006
Posts: 606
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From: Wernersville PA
Help with MTI cam...
Will an MTI B1 cam, 221/221, .559/.559, 114 LSA be OK to drop right into an '03 Z06 with no other valvetrain modifications? Other mods to the car are Halltech intake, full SuperMaxx exhaust, ported TB & heads. Any help would be appreciated guys! Thanks.
Racer
Joined: Nov 2004
Posts: 271
Likes: 7
From: Wyoming MN
I would at least get a set of Comp Cams 26918 valve springs (they are only $170-180). You can use your stock retainers. A set of pushrods would be good too. The $249 package that Futral Motorsports sells (26918 springs, hardened pushrods) would be good.
That being said, I personally wouldn't go through the trouble of upgrading from a stock LS6 cam to a 221-duration cam, unless the cam itself was free and you did your own labor. I would go with at least a 224-duration .570-lift cam to make the swap worth it, but thats just my .02. I just got a custom 226-duration cam installed and picked up at least 40ft-lbs of torque from 3700rpm on, with no loss below that, and driveability was unaffected with a good tune.
Good luck,
Kris
That being said, I personally wouldn't go through the trouble of upgrading from a stock LS6 cam to a 221-duration cam, unless the cam itself was free and you did your own labor. I would go with at least a 224-duration .570-lift cam to make the swap worth it, but thats just my .02. I just got a custom 226-duration cam installed and picked up at least 40ft-lbs of torque from 3700rpm on, with no loss below that, and driveability was unaffected with a good tune.
Good luck,
Kris
Last edited by KrisR; Feb 18, 2006 at 09:14 PM.
Race Director
Joined: Aug 1999
Posts: 15,466
Likes: 0
From: GARDENA Ca, State Of Konfusion
St. Jude Donor '05
I bought the whole kit from MTI, it came with that cam, upgraded valve springs, hardened push rods and titanium retainers.
Last edited by WALLstAL; Feb 18, 2006 at 09:50 PM.
Le Mans Master
Joined: Nov 2003
Posts: 8,003
Likes: 248
From: Tampa Fl
St. Jude Donor '12-'13-'14
Originally Posted by KrisR
I would at least get a set of Comp Cams 26918 valve springs (they are only $170-180). You can use your stock retainers. A set of pushrods would be good too. The $249 package that Futral Motorsports sells (26918 springs, hardened pushrods) would be good.
That being said, I personally wouldn't go through the trouble of upgrading from a stock LS6 cam to a 221-duration cam, unless the cam itself was free and you did your own labor. I would go with at least a 224-duration .570-lift cam to make the swap worth it, but thats just my .02. I just got a custom 226-duration cam installed and picked up at least 40ft-lbs of torque from 3700rpm on, with no loss below that, and driveability was unaffected with a good tune.
Good luck,
Kris
That being said, I personally wouldn't go through the trouble of upgrading from a stock LS6 cam to a 221-duration cam, unless the cam itself was free and you did your own labor. I would go with at least a 224-duration .570-lift cam to make the swap worth it, but thats just my .02. I just got a custom 226-duration cam installed and picked up at least 40ft-lbs of torque from 3700rpm on, with no loss below that, and driveability was unaffected with a good tune.
Good luck,
Kris
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 613
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
With Everything PHILS C5 said and:You DEFINITELY need to upgrade the springs at a minimum to comp 918s and I agree, that such small cam is not worth opening your motor for, and if you do, at least go with the battle tested street performer, 224/224 cam with a .581 lift and 112 to 114 lsa, which MTI also sells as i believe their HAMMER CAM (may be wrong on the name) but now on the cam specs. If not b/c you want your car to handle and idle just like its stock, at leat go with the MTI s STEALTH CAM they offer that makes very good power without effecting stock feel of car!
Melting Slicks
Joined: Jun 2001
Posts: 2,743
Likes: 3
From: Davie Florida
Originally Posted by BLOWN ECS Z06
With Everything PHILS C5 said and:You DEFINITELY need to upgrade the springs at a minimum to comp 918s and I agree, that such small cam is not worth opening your motor for, and if you do, at least go with the battle tested street performer, 224/224 cam with a .581 lift and 112 to 114 lsa, which MTI also sells as i believe their HAMMER CAM (may be wrong on the name) but now on the cam specs. If not b/c you want your car to handle and idle just like its stock, at leat go with the MTI s STEALTH CAM they offer that makes very good power without effecting stock feel of car!
MTI sells the C2 cam it is 224/224 duration with .581/.581 lift. I would also take a look at the Futral F4 cam. It is 226/226 576/576, it has great street manners and excellent performance.
Last edited by Mitch C; Feb 19, 2006 at 05:49 AM.
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Thread Starter
Pro
Joined: Jan 2006
Posts: 606
Likes: 0
From: Wernersville PA
Well, here's the update. I went with the MTI cam and installed it today. I did upgrade the springs to 918's. 5 runs on the DynoJet averaged 388.1rwhp & 372.2lbft. of torque. 5 runs after the cam and springs netted 409.4rwhp & 393.2lb.ft. of torque. The whole shebang only cost me $500, so it was hard to pass up. I am not really a performance nut, so I am pleased with the results. It really is a mild cam though, you can't even tell the difference from stock at idle, just a little bit of lope. Also changed out the tranny & diff to RP SynchroMax and Max-Gear75w-90 and added Magnecor wires & Koolsox boots while I was at it. A very productive day and a half.
Safety Car
Joined: May 2000
Posts: 4,808
Likes: 344
From: Albuquerque NM
Good job. I'm with you on using smaller cams for the street, better low end torque, no need to rev it to 6500 (or more) for peak power, better gas mileage, and still you've got simular power to the bigger cam guys.
BTW I'm running an even smaller cam: 218/.561" and make pretty good power also: 422/398 sae rw and it sounds like stock
BTW I'm running an even smaller cam: 218/.561" and make pretty good power also: 422/398 sae rw and it sounds like stock
Thread Starter
Pro
Joined: Jan 2006
Posts: 606
Likes: 0
From: Wernersville PA
Originally Posted by 6Speeder
Good job. I'm with you on using smaller cams for the street, better low end torque, no need to rev it to 6500 (or more) for peak power, better gas mileage, and still you've got simular power to the bigger cam guys.
BTW I'm running an even smaller cam: 218/.561" and make pretty good power also: 422/398 sae rw and it sounds like stock
BTW I'm running an even smaller cam: 218/.561" and make pretty good power also: 422/398 sae rw and it sounds like stock
