Does anyone here run the 221/221 grind anymore?
Re: Does anyone here run the 221/221 grind anymore?
I would no longer waste my time on small cams for the LS1 unless you're worried about emissions. Futral Motorsports has some EXTREMELY drivable grinds. Even their F13 which is a 230/232 drives like stock. My 236/239 drives like stock over 1800 rpm 
Mike

Mike
Re: Does anyone here run the 221/221 grind anymore?
But some people don't care the change springs every 20-30k miles or want to run gears or run the RPM up to 6800 for peak power.
Its all about set up and preference.
I'm going to run a 226/226. Its larger than I wanted for my daily driver, but for $80...
Its all about set up and preference.
I'm going to run a 226/226. Its larger than I wanted for my daily driver, but for $80...
Last edited by Greed4Speed; Dec 4, 2005 at 12:02 PM.
Re: Does anyone here run the 221/221 grind anymore?
Greedy, is that the cam that was for sale on a board? A friend was asking me about that one I believe. Isn't is on a 114? He thought about buying it.
As for my mild cam selection;
Just a few thoughts.
Ben T.
As for my mild cam selection;
- My cam was cheap as I purchased it used
- I can use inexpensive LS6 springs which are known for their longevity
- A tune although desirable is not necessary. It can wait 'till I get HPtuners
- I don't want to give up any off-idle performance from closing my intake valve way later than stock, and this lobe will not do such
- I drive my car a lot and I don't want to significantly decrease my operating economy
- I'll have a stock idle (set at 1000ish as of now)
- And lastly, judging by our local FM cam'd cars I'll dyno less, but cut lower ETs.
Just a few thoughts.
Ben T.
Re: Does anyone here run the 221/221 grind anymore?
Originally Posted by Greed4Speed
But some people don't care the change springs every 20-30k miles or want to run gears or run the RPM up to 6800 for peak power.
Its all about set up and preference.
I'm going to run a 226/226. Its larger than I wanted for my daily driver, but for $80...
Its all about set up and preference.
I'm going to run a 226/226. Its larger than I wanted for my daily driver, but for $80...
You're going to eat valve springs faster with nearly any newer-style aftermarket LS1 cam based on the aggressive XE or XE-R lobes, regardless of duration.
Here's my Dyno Graph It doesn't peak remotely close to 6800 rpm, does it?

116.5 mph missing 3rd gear at stock weight? I'd like to see a smaller cam do that.
Mike
Last edited by Kraest; Dec 5, 2005 at 07:40 AM.
Re: Does anyone here run the 221/221 grind anymore?
Study,
I bought it local. Its on a 112. Its the GTP420, and I'm running it for your #1 reason. lol I wanted a smaller cam, but I can't argue with $80.
Kraest,
First, You're comparing your .600/.611 to a IIRC .551/.551 lift cam. You WILL change springs more often. Yours is an XER his is a Lunati grind. Lunati lobes are no where near as radical.
If your curve is petering out at 6500 RPM, you need some heads bad. 6500 rpm is still higher than some people care to spin their engine. I know I'd rather not spin that high but I will.
If you look at your torque curve it says it all. You don't hit peak until after 4500 rpm. If you aren't going to run gears you're going to be out of your curve and getting left behind off the line and after each shift. This is what a larger cam does. It'll produce larger numbers, but the curves move up. And again, not everyone wants to run gears.
If you care to search on ls1tech. There is a nice dyno graph of a 224, fm13 and some other .23X cam all overlayed. The TR224 totally owns the 2 large cams in the lower RPMs. Now take these cars to the track with stock gears, and guess who is going to win.
I bought it local. Its on a 112. Its the GTP420, and I'm running it for your #1 reason. lol I wanted a smaller cam, but I can't argue with $80.
Kraest,
First, You're comparing your .600/.611 to a IIRC .551/.551 lift cam. You WILL change springs more often. Yours is an XER his is a Lunati grind. Lunati lobes are no where near as radical.
If your curve is petering out at 6500 RPM, you need some heads bad. 6500 rpm is still higher than some people care to spin their engine. I know I'd rather not spin that high but I will.
If you look at your torque curve it says it all. You don't hit peak until after 4500 rpm. If you aren't going to run gears you're going to be out of your curve and getting left behind off the line and after each shift. This is what a larger cam does. It'll produce larger numbers, but the curves move up. And again, not everyone wants to run gears.
If you care to search on ls1tech. There is a nice dyno graph of a 224, fm13 and some other .23X cam all overlayed. The TR224 totally owns the 2 large cams in the lower RPMs. Now take these cars to the track with stock gears, and guess who is going to win.
Last edited by Greed4Speed; Dec 5, 2005 at 11:15 AM.
Re: Does anyone here run the 221/221 grind anymore?
Originally Posted by Greed4Speed
Study,
I bought it local. Its on a 112. Its the GTP420, and I'm running it for your #1 reason. lol I wanted a smaller cam, but I can't argue with $80.
Kraest,
First, You're comparing your .600/.611 to a IIRC .551/.551 lift cam. You WILL change springs more often. Yours is an XER his is a Lunati grind. Lunati lobes are no where near as radical.
If your curve is petering out at 6500 RPM, you need some heads bad. 6500 rpm is still higher than some people care to spin their engine. I know I'd rather not spin that high but I will.
If you look at your torque curve it says it all. You don't hit peak until after 4500 rpm. If you aren't going to run gears you're going to be out of your curve and getting left behind off the line and after each shift. This is what a larger cam does. It'll produce larger numbers, but the curves move up. And again, not everyone wants to run gears.
If you care to search on ls1tech. There is a nice dyno graph of a 224, fm13 and some other .23X cam all overlayed. The TR224 totally owns the 2 large cams in the lower RPMs. Now take these cars to the track with stock gears, and guess who is going to win.
I bought it local. Its on a 112. Its the GTP420, and I'm running it for your #1 reason. lol I wanted a smaller cam, but I can't argue with $80.
Kraest,
First, You're comparing your .600/.611 to a IIRC .551/.551 lift cam. You WILL change springs more often. Yours is an XER his is a Lunati grind. Lunati lobes are no where near as radical.
If your curve is petering out at 6500 RPM, you need some heads bad. 6500 rpm is still higher than some people care to spin their engine. I know I'd rather not spin that high but I will.
If you look at your torque curve it says it all. You don't hit peak until after 4500 rpm. If you aren't going to run gears you're going to be out of your curve and getting left behind off the line and after each shift. This is what a larger cam does. It'll produce larger numbers, but the curves move up. And again, not everyone wants to run gears.
If you care to search on ls1tech. There is a nice dyno graph of a 224, fm13 and some other .23X cam all overlayed. The TR224 totally owns the 2 large cams in the lower RPMs. Now take these cars to the track with stock gears, and guess who is going to win.
Who in their right mind would leave stock gears in a car? What fun is that?
The LS1 doesn't make peak torque any lower than 4000rpm anyway, so IMO, you need gears and/or converter right off the showroom floor 
Anyway, my 4.10s do 2000 rpm at 73 mph...makes 6th gear usable

I'm very familiar with LS1Tech

Mike
Re: Does anyone here run the 221/221 grind anymore?
I've done the largeish cam, small converter, and low gear thing. Not my bag anymore. And if you do want to race often, a proper set up is far more important than a large cam.
This car is not and will not be for drags. I may go out once in a while but its rare. So doing 85 mph at ~2k rpm in 6th is great to me. I can cruise at 2k rpm in 5th at a lower speed around the city just as easily and more legally.
My 226 is larger and dirtier than I was wanting. I wanted a sleeper cam, but I'll give it a try for a while. If I could have found a GT2-3, B1, T1, C1 or something near those specs for cheap locally, I'd jump on it. I'd much rather spend $60 on
LS6 springs than what I'm looking at for my .590 lift.
Being familiar with tech you should know there are some very impressive numbers and ETs coming from some short duration cam only cars. Especially the short durtation tight LSA grinds.
There is a nice thread from May on tech about this. A guy askes about a small torquey cam and people can't help but try to get him to run a larger cam.
There are also some guys with great numbers on the B1 cam for Study.
http://www.ls1tech.com/forums/showth...ight=tight+lsa
This car is not and will not be for drags. I may go out once in a while but its rare. So doing 85 mph at ~2k rpm in 6th is great to me. I can cruise at 2k rpm in 5th at a lower speed around the city just as easily and more legally.
My 226 is larger and dirtier than I was wanting. I wanted a sleeper cam, but I'll give it a try for a while. If I could have found a GT2-3, B1, T1, C1 or something near those specs for cheap locally, I'd jump on it. I'd much rather spend $60 on
LS6 springs than what I'm looking at for my .590 lift.
Being familiar with tech you should know there are some very impressive numbers and ETs coming from some short duration cam only cars. Especially the short durtation tight LSA grinds.
There is a nice thread from May on tech about this. A guy askes about a small torquey cam and people can't help but try to get him to run a larger cam.
There are also some guys with great numbers on the B1 cam for Study.
http://www.ls1tech.com/forums/showth...ight=tight+lsa
Re: Does anyone here run the 221/221 grind anymore?
Originally Posted by Greed4Speed
I've done the largeish cam, small converter, and low gear thing. Not my bag anymore. And if you do want to race often, a proper set up is far more important than a large cam.
This car is not and will not be for drags. I may go out once in a while but its rare. So doing 85 mph at ~2k rpm in 6th is great to me. I can cruise at 2k rpm in 5th at a lower speed around the city just as easily and more legally.
My 226 is larger and dirtier than I was wanting. I wanted a sleeper cam, but I'll give it a try for a while. If I could have found a GT2-3, B1, T1, C1 or something near those specs for cheap locally, I'd jump on it. I'd much rather spend $60 on
LS6 springs than what I'm looking at for my .590 lift.
Being familiar with tech you should know there are some very impressive numbers and ETs coming from some short duration cam only cars. Especially the short durtation tight LSA grinds.
There is a nice thread from May on tech about this. A guy askes about a small torquey cam and people can't help but try to get him to run a larger cam.
There are also some guys with great numbers on the B1 cam for Study.
http://www.ls1tech.com/forums/showth...ight=tight+lsa
This car is not and will not be for drags. I may go out once in a while but its rare. So doing 85 mph at ~2k rpm in 6th is great to me. I can cruise at 2k rpm in 5th at a lower speed around the city just as easily and more legally.
My 226 is larger and dirtier than I was wanting. I wanted a sleeper cam, but I'll give it a try for a while. If I could have found a GT2-3, B1, T1, C1 or something near those specs for cheap locally, I'd jump on it. I'd much rather spend $60 on
LS6 springs than what I'm looking at for my .590 lift.
Being familiar with tech you should know there are some very impressive numbers and ETs coming from some short duration cam only cars. Especially the short durtation tight LSA grinds.
There is a nice thread from May on tech about this. A guy askes about a small torquey cam and people can't help but try to get him to run a larger cam.
There are also some guys with great numbers on the B1 cam for Study.
http://www.ls1tech.com/forums/showth...ight=tight+lsa
Ben T.
Re: Does anyone here run the 221/221 grind anymore?
Mine is the B1 cam. Here is a the dyno from when the car had the heads/cam installed by the original owner(Sporadic from LS1tech).
http://img.photobucket.com/albums/v2...nce/TAdyno.jpg
Last Fall, I made 409rwhp with the heads/cam and ls6 intake and no tune, through cats, cutout and some heavy 18" Chrome Y2K rims and an additional 40k miles on the car.
I haven't made it back into the 11's, due to the tranny. But it should be rebuilt by this Spring.
http://img.photobucket.com/albums/v2...nce/TAdyno.jpg
Last Fall, I made 409rwhp with the heads/cam and ls6 intake and no tune, through cats, cutout and some heavy 18" Chrome Y2K rims and an additional 40k miles on the car.
I haven't made it back into the 11's, due to the tranny. But it should be rebuilt by this Spring.
Re: Does anyone here run the 221/221 grind anymore?
I have the B-1 on a 114* w/most bolt-ons and 12 bolt w/4.10s.My car dynoed 415/402 with kooks/ORY and magnaflow catback.I run 11's off the street with DRs and no weight reduction except !spare/jack.It is one awesome cam and the torque peak is pancake flat which makes it a fun street cam.Believe it or not I have the devinci tuner and it put the package together.Car has enough lope to know it has a cam but has great driveability also.
B-1
B-1
Re: Does anyone here run the 221/221 grind anymore?
Originally Posted by glennster
I have the B-1 on a 114* w/most bolt-ons and 12 bolt w/4.10s.My car dynoed 415/402 with kooks/ORY and magnaflow catback.I run 11's off the street with DRs and no weight reduction except !spare/jack.It is one awesome cam and the torque peak is pancake flat which makes it a fun street cam.Believe it or not I have the devinci tuner and it put the package together.Car has enough lope to know it has a cam but has great driveability also.
B-1
B-1

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B1- The proof's in the pudding, 117.6 mph!
Re: Does anyone here run the 221/221 grind anymore?
No,it was a dynomite dyno.I'm not real familiar with how it stacks against a mustang or dynojet but it is a load type dyno and from me being in the car during the run I could feel it load the car in 4th.Heads are factory,never been touched.
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