Cog dyno/boost results.........
Thread Starter
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From: Albuquerque, NM
Dirty I ran that idea past Lee, I even provided mocked up picks of my stock ATI pulley with 3 paper slots(representing raised aluminum pieces) on it to show how they would fit inbetween the spokes real snug. But I guess he didn't like the idea, he never got back to me. I guess that he didn't feel like making a couple new crank cogs for the few that have order these huh.
J
J
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Joined: Nov 2001
Posts: 11,603
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From: Chi-Town, IL
Nah, he has time to talk to people about other setups I hear, but he doesn't have time to respond to the e-mails and phone calls of the people who are trying to get his non working setup to work.......
I've dealt w/ASP before w/8 rib, now w/COG, I feel I can get the COG to work, but I won't send people running to ASP for stuff, their customer service sucks
I've dealt w/ASP before w/8 rib, now w/COG, I feel I can get the COG to work, but I won't send people running to ASP for stuff, their customer service sucks
Hey there guys...
Just wanted to give the COGS people a update. A Few of our car clubs here in Denver had a Big Dyno day on Saturday. I forgot about it, then I got a call at Noon. Anyway I went down there and there was a great turn out of about 40 cars or so. I guess 30 cars dynoed. I got there and people asked me to dyno my car. I had no intention to dyno my car since I really have not changed my programing any. I did mess with the Fuel dilevery tables a little. I leaned it out in the mid range and lowered my timing a degree accordingly. Well the people talked me into dynoing my car. They said some lightning did 440 at the wheels and they wanted a Chevy on the top of the list. I was not expecting anyting at all. I thought it was going to be in the high 500's, since I'm running regular 93 gas and lowered my timing a little. Well on my first pull at 5,000 rpms I starting to see a ton of smoke coming from the back of the car. I thought my tune was way off but it ended up being the tires spinning on the dyno. WOW. My first pull was 609 RWHP. A new best..
5 minutes later I dyno again and some guy sat on my rear bumper. The car did 621 and 560 Torque. I was very impressed. Same amount of boost, just leaned it out a little in the mid range. The A/F ended up being 12.1 to 1 in the upper rpms! I'm happy and it's time to update my sig.. Not too bad for a stock displacement, stock crank LS1.
Gotta love Cogs!!
Take care..
Clint
Just wanted to give the COGS people a update. A Few of our car clubs here in Denver had a Big Dyno day on Saturday. I forgot about it, then I got a call at Noon. Anyway I went down there and there was a great turn out of about 40 cars or so. I guess 30 cars dynoed. I got there and people asked me to dyno my car. I had no intention to dyno my car since I really have not changed my programing any. I did mess with the Fuel dilevery tables a little. I leaned it out in the mid range and lowered my timing a degree accordingly. Well the people talked me into dynoing my car. They said some lightning did 440 at the wheels and they wanted a Chevy on the top of the list. I was not expecting anyting at all. I thought it was going to be in the high 500's, since I'm running regular 93 gas and lowered my timing a little. Well on my first pull at 5,000 rpms I starting to see a ton of smoke coming from the back of the car. I thought my tune was way off but it ended up being the tires spinning on the dyno. WOW. My first pull was 609 RWHP. A new best..
5 minutes later I dyno again and some guy sat on my rear bumper. The car did 621 and 560 Torque. I was very impressed. Same amount of boost, just leaned it out a little in the mid range. The A/F ended up being 12.1 to 1 in the upper rpms! I'm happy and it's time to update my sig.. Not too bad for a stock displacement, stock crank LS1. Gotta love Cogs!!
Take care..
Clint
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Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Originally Posted by HUGGER ORANGE SS
Hey there guys...
<snip>
The car did 621 and 560 Torque. I was very impressed. Same amount of boost, just leaned it out a little in the mid range. The A/F ended up being 12.1 to 1 in the upper rpms! I'm happy and it's time to update my sig.. Not too bad for a stock displacement, stock crank LS1.
Gotta love Cogs!!
Take care..
Clint
<snip>
The car did 621 and 560 Torque. I was very impressed. Same amount of boost, just leaned it out a little in the mid range. The A/F ended up being 12.1 to 1 in the upper rpms! I'm happy and it's time to update my sig.. Not too bad for a stock displacement, stock crank LS1.
Gotta love Cogs!!
Take care..
Clint
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
Nice #'s, I would make it slightly more rich to be on the safe side for the street.....
That AFR would probably be almost 13:1 on the street......
Congrats on the new #'s, hopefully we see some good things out of toms car on wednesday.....
That AFR would probably be almost 13:1 on the street......
Congrats on the new #'s, hopefully we see some good things out of toms car on wednesday.....
Thread Starter
TECH Senior Member
iTrader: (16)
Joined: Oct 2002
Posts: 6,907
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From: Albuquerque, NM
DAYUM! Great Numbers Clint!
Bos look for those pins in the mail, I sent 4)1 inchers and 4) 1.5 inchers
J
Bos look for those pins in the mail, I sent 4)1 inchers and 4) 1.5 inchers
J
Last edited by frcefed98; Mar 22, 2004 at 06:43 PM.
Thread Starter
TECH Senior Member
iTrader: (16)
Joined: Oct 2002
Posts: 6,907
Likes: 6
From: Albuquerque, NM
Originally Posted by BIGBOS
Nah, he has time to talk to people about other setups I hear, but he doesn't have time to respond to the e-mails and phone calls of the people who are trying to get his non working setup to work.......
I've dealt w/ASP before w/8 rib, now w/COG, I feel I can get the COG to work, but I won't send people running to ASP for stuff, their customer service sucks
I've dealt w/ASP before w/8 rib, now w/COG, I feel I can get the COG to work, but I won't send people running to ASP for stuff, their customer service sucks
Yeah, some have told me just to send it all back and get my cash back, why pay for something that you have to MAKE WORK. It should work out of the ******* box. I just feel kinda bad that a lot of you bought these because of my mega post. I hope I can get them figure out...ol Clint gave me some more gusto to see it through.
J
TO ANYONE WHO WANTS A COG SET UP AND ORDERS FROM ASP PLEASE ORDER THEM WITH CLINTS TOOTH COUNT TO SAVE YOURSELF A LOT OF HASSLE WITH BELT FITTIMENT DO NOT ORDER THE 73/31 COUNT
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Go by Tooth Count, not by Diameter.. I'm running 72 Crank and 28 or 29 Blower pulley I believe. The 960 fits perfectly. I do remember when I had 32 Tooth count for the blower pulley it nearly didn't fit. When I went down to 29 Blower pulley teeth, the 960 fit much better.
I'm not sure many people can run my tooth count.. I'm seeing 11psi at high altitude. At sealevel I'm sure I would see 13 to 14psi of boost, not sure if everyone could run that amount of boost.
Let's do the math as well. Ok 72 teeth crank / 29 blower teeth = 2.48. 2.48 X 4.10 internal step up ratio for the P-1 or D-1. 2.48 X 4.10 = 10.17 So for every motor RPM, my Blower impeller spins 10.17 times. 6500 Rev limiter. 10.17 X 6500 = 66,105 Impeller rpms at max engine speed. The Impeller is spinning 66,105 rpms. That's over spinning it the 65,000 max impeller speed by 1,105 rpms. The blower is holding up fine, so far. The D-1SC is only rated for 62,000 impeller speeds so if you plan on shifting at 6500 then you will over spin it with my tooth count. You could spin the D-1SC to 6200 engine rpms with my tooth count and you'll be right there at Max impeller rpms. But could your motors handle this much boost??
Good luck guys.. When I go up to the F1 Blower, I'll need to totaly re-vamp my belt system. Because using this tooth count on a F-1 might give me too much boost. Although 17psi, (if it was that, which I doubt) would be cool!!
Clint
Clint
I'm not sure many people can run my tooth count.. I'm seeing 11psi at high altitude. At sealevel I'm sure I would see 13 to 14psi of boost, not sure if everyone could run that amount of boost.
Let's do the math as well. Ok 72 teeth crank / 29 blower teeth = 2.48. 2.48 X 4.10 internal step up ratio for the P-1 or D-1. 2.48 X 4.10 = 10.17 So for every motor RPM, my Blower impeller spins 10.17 times. 6500 Rev limiter. 10.17 X 6500 = 66,105 Impeller rpms at max engine speed. The Impeller is spinning 66,105 rpms. That's over spinning it the 65,000 max impeller speed by 1,105 rpms. The blower is holding up fine, so far. The D-1SC is only rated for 62,000 impeller speeds so if you plan on shifting at 6500 then you will over spin it with my tooth count. You could spin the D-1SC to 6200 engine rpms with my tooth count and you'll be right there at Max impeller rpms. But could your motors handle this much boost??
Good luck guys.. When I go up to the F1 Blower, I'll need to totaly re-vamp my belt system. Because using this tooth count on a F-1 might give me too much boost. Although 17psi, (if it was that, which I doubt) would be cool!!
Clint
Clint
Originally Posted by HUGGER ORANGE SS
Go by Tooth Count, not by Diameter.. I'm running 72 Crank and 28 or 29 Blower pulley I believe. The 960 fits perfectly. I do remember when I had 32 Tooth count for the blower pulley it nearly didn't fit. When I went down to 29 Blower pulley teeth, the 960 fit much better.
I'm not sure many people can run my tooth count.. I'm seeing 11psi at high altitude. At sealevel I'm sure I would see 13 to 14psi of boost, not sure if everyone could run that amount of boost.
Let's do the math as well. Ok 72 teeth crank / 29 blower teeth = 2.48. 2.48 X 4.10 internal step up ratio for the P-1 or D-1. 2.48 X 4.10 = 10.17 So for every motor RPM, my Blower impeller spins 10.17 times. 6500 Rev limiter. 10.17 X 6500 = 66,105 Impeller rpms at max engine speed. The Impeller is spinning 66,105 rpms. That's over spinning it the 65,000 max impeller speed by 1,105 rpms. The blower is holding up fine, so far. The D-1SC is only rated for 62,000 impeller speeds so if you plan on shifting at 6500 then you will over spin it with my tooth count. You could spin the D-1SC to 6200 engine rpms with my tooth count and you'll be right there at Max impeller rpms. But could your motors handle this much boost??
Good luck guys.. When I go up to the F1 Blower, I'll need to totaly re-vamp my belt system. Because using this tooth count on a F-1 might give me too much boost. Although 17psi, (if it was that, which I doubt) would be cool!!
Clint
Clint
I'm not sure many people can run my tooth count.. I'm seeing 11psi at high altitude. At sealevel I'm sure I would see 13 to 14psi of boost, not sure if everyone could run that amount of boost.
Let's do the math as well. Ok 72 teeth crank / 29 blower teeth = 2.48. 2.48 X 4.10 internal step up ratio for the P-1 or D-1. 2.48 X 4.10 = 10.17 So for every motor RPM, my Blower impeller spins 10.17 times. 6500 Rev limiter. 10.17 X 6500 = 66,105 Impeller rpms at max engine speed. The Impeller is spinning 66,105 rpms. That's over spinning it the 65,000 max impeller speed by 1,105 rpms. The blower is holding up fine, so far. The D-1SC is only rated for 62,000 impeller speeds so if you plan on shifting at 6500 then you will over spin it with my tooth count. You could spin the D-1SC to 6200 engine rpms with my tooth count and you'll be right there at Max impeller rpms. But could your motors handle this much boost??
Good luck guys.. When I go up to the F1 Blower, I'll need to totaly re-vamp my belt system. Because using this tooth count on a F-1 might give me too much boost. Although 17psi, (if it was that, which I doubt) would be cool!!
Clint
Clint
Clint i was always told by ATI to go by the diameter of the pulleys..... I was told to divide the blower pulley by the cran pulley and multiply that by the step up ratio of the blower so 4.1 and multiply that by your engine RPM .. so 6500rpm's...... im not sure though so you may be right dealing with the Cogs...... i just want to know what ill be spinning my blower to with these things at 6500 rpm's.
Kyle
