MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP!
09-21-2003, 08:19 PM
#61
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! Thats is cool, I was thinking about that cam combined with 382 all stroke setup from lunati. With all that stroke i would think that it does not like to rev. And since this cam makes alot of power down low(or that is the impression im getting) it would complement the lunati 382 crank.
09-23-2003, 10:54 AM
#64
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP!
Are you going to dyno your car anytime soon?
BTW, I scanned the dyno sheets and sent them to Tony to put up. I should have them up shortly.
09-23-2003, 05:08 PM
#67
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! With a small to moderate shot? Just fine.
Going BIG on the nitrous? You'll want more exhaust duration.
Going BIG on the nitrous? You'll want more exhaust duration.
09-23-2003, 05:14 PM
#68
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! To get a little more specific about that question. This is a subjective question so these are just my views...
For a small shot (say, 125 or less) I think it would do great to make the most power from your nitrous by creating higher cylinder pressures. Very little overlap helps with this.
With a moderate shot (150-175) I think it would work ok but you're starting to need more exhaust flow. You're not really that serious about your nitrous performance if this is all the nitrous you're running so it's not a big deal, IMO.
With a large shot (200+) you're seriously being limited by the small exhaust duration and you're obviously serious about making alot of power so, go alot bigger on the exhaust side.
For a small shot (say, 125 or less) I think it would do great to make the most power from your nitrous by creating higher cylinder pressures. Very little overlap helps with this.
With a moderate shot (150-175) I think it would work ok but you're starting to need more exhaust flow. You're not really that serious about your nitrous performance if this is all the nitrous you're running so it's not a big deal, IMO.
With a large shot (200+) you're seriously being limited by the small exhaust duration and you're obviously serious about making alot of power so, go alot bigger on the exhaust side.
09-24-2003, 03:51 PM
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP!
Who are you talking to?
BTW, I scanned the dyno sheets and sent them to Tony to put up. I should have them up shortly.
BTW, I scanned the dyno sheets and sent them to Tony to put up. I should have them up shortly.
Where can we see the dyno sheets that tony posted up?
09-24-2003, 06:36 PM
#70
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! Ahh, yeah, ok. That didn't really make a whole lot of sense to me by you asking, "Are you going to dyno your car anytime soon?", since that's EXACTLY what this thread is about...my dyno numbers! 
Read my third post up from this one.
"Ok, dyno sheets are up."
They're in my original post in this thread.
Read my third post up from this one.
"Ok, dyno sheets are up."
They're in my original post in this thread.
09-24-2003, 07:21 PM
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP!
...that's EXACTLY what this thread is about...my dyno numbers!
After reading all your posts with a microscope, you seem to be running 3.23 gears and something called "Femera" double springs. I think you should put all your mods/setup in the original post (or your sig)--it will help others read what this means.
As far as the graphs, thanks for posting, that's great, but the first two are hard to read. I for one can't convert MPH to RPM on the fly.
Do you have one like the third one, that goes past 6k, or another version of the first two that have rpm not mph?
09-24-2003, 07:29 PM
#72
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! I wish I had one with RPM that went past 6000. I'm going to ask Jayson if he has one next time we talk.
My mods have pretty much been told already. All of the normal bolt-ons, this H/C package, and a 3500 stall with drag radials.
I'll be glad to post a detailed list though (I've done this many times so it'll just be a matter of digging it up.)
My mods have pretty much been told already. All of the normal bolt-ons, this H/C package, and a 3500 stall with drag radials.
I'll be glad to post a detailed list though (I've done this many times so it'll just be a matter of digging it up.)
09-24-2003, 07:37 PM
#73
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! For some reason I keep getting an error message when I try to add to my original post. So, here is a full list of mods to this car for anyone that is curious...
Fast Toys Ram Air
MTI Lid
GMS MAF sensor
Ported TB
NGK TR-6 plugs
QTP 1 3/4" headers and Y-pipe
3" QTP electric cuttout
Lowered the car approximately 1 1.5" by cutting the front springs and removing the rear spring cushions.
LCA relocators
Fikse FM-5 17" wheels
315/35/17 Nitto drag radials
ACPT carbonfiber driveshaft
TCI 3500 converter
TCI shift kit
TCI tranny cooler
LS1 Edit programming
160 degree thermostat
Removed spare tire, jack, and tunnel brace.
MTI Stage II LS6 heads with Femera valvesprings
MTI Stealth II cam
Fast Toys Ram Air
MTI Lid
GMS MAF sensor
Ported TB
NGK TR-6 plugs
QTP 1 3/4" headers and Y-pipe
3" QTP electric cuttout
Lowered the car approximately 1 1.5" by cutting the front springs and removing the rear spring cushions.
LCA relocators
Fikse FM-5 17" wheels
315/35/17 Nitto drag radials
ACPT carbonfiber driveshaft
TCI 3500 converter
TCI shift kit
TCI tranny cooler
LS1 Edit programming
160 degree thermostat
Removed spare tire, jack, and tunnel brace.
MTI Stage II LS6 heads with Femera valvesprings
MTI Stealth II cam
09-28-2003, 09:14 PM
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! Colonel what kind of power do you think I would make with the new MTI 2E heads (economic heads) and the MTI Stealth II cam.? Would you recommend the springs you put on yours. Your article on your setup had me rethinking instead of going with a bigger cam. Great writeup and please give some input on this combination. Cheers......
09-28-2003, 10:03 PM
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP!
To get a little more specific about that question. This is a subjective question so these are just my views...
For a small shot (say, 125 or less) I think it would do great to make the most power from your nitrous by creating higher cylinder pressures. Very little overlap helps with this.
With a moderate shot (150-175) I think it would work ok but you're starting to need more exhaust flow. You're not really that serious about your nitrous performance if this is all the nitrous you're running so it's not a big deal, IMO.
With a large shot (200+) you're seriously being limited by the small exhaust duration and you're obviously serious about making alot of power so, go alot bigger on the exhaust side.
For a small shot (say, 125 or less) I think it would do great to make the most power from your nitrous by creating higher cylinder pressures. Very little overlap helps with this.
With a moderate shot (150-175) I think it would work ok but you're starting to need more exhaust flow. You're not really that serious about your nitrous performance if this is all the nitrous you're running so it's not a big deal, IMO.
With a large shot (200+) you're seriously being limited by the small exhaust duration and you're obviously serious about making alot of power so, go alot bigger on the exhaust side.
09-30-2003, 11:23 AM
#79
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! Sorry fellas, been at Panama City Beach for Thunder Beach Bike Week since Thursday.
"Colonel what kind of power do you think I would make with the new MTI 2E heads (economic heads) and the MTI Stealth II cam.? Would you recommend the springs you put on yours."
I think it'll make within 5 RWHP with the new E heads. I would have gone with the E heads except that I plan on upgrading to a larger CI engine sometime within the next year or two.
I like the dual springs best, especially if you're getting heads at the same time. These springs are almost failproof and I really like that peace of mind with a daily driver. I'm NOT saying the single springs aren't really good-they are. But the duals are certainly better.
"OK, what do you think would result from a cam like this(for Nitrous use): .581/.588 224*/228* @116*lsa. Car will have AS S2 heads, lS6 intake, Kook's long tubes, Bauer TB, ASP pulley, TSP lid, and a NX 200 wet shot."
I REALLY like that idea. Sounds like something I would do.
"Colonel what kind of power do you think I would make with the new MTI 2E heads (economic heads) and the MTI Stealth II cam.? Would you recommend the springs you put on yours."
I think it'll make within 5 RWHP with the new E heads. I would have gone with the E heads except that I plan on upgrading to a larger CI engine sometime within the next year or two.
I like the dual springs best, especially if you're getting heads at the same time. These springs are almost failproof and I really like that peace of mind with a daily driver. I'm NOT saying the single springs aren't really good-they are. But the duals are certainly better.
"OK, what do you think would result from a cam like this(for Nitrous use): .581/.588 224*/228* @116*lsa. Car will have AS S2 heads, lS6 intake, Kook's long tubes, Bauer TB, ASP pulley, TSP lid, and a NX 200 wet shot."
I REALLY like that idea. Sounds like something I would do.
09-30-2003, 04:47 PM
#80
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Re: MTI Stealth II cam+Stage II LS6 heads makes 422.7 RWHP! BTW, when I said it would make within 5 RWHP with the E heads, I meant with LS6 E heads. Make it LS1 E heads and you'll drop another 10 RWHP, IMO.