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Yea you'll be there.I don't get my work done here..I get it done at LMR up in Houston.The only thing I get done here in my tune..which works out really well for my car lol
Man i know this is a really old thread, but with that combo wouldn't you be over spinning that blower by quite a bit? Only asking because i'm curious about IAT temps and how it worked out for you. The smallest recommended upper pulley is 3.6 with a 10% overdrive lower i believe. Any input or help is appreciated. Thanks!
Man i know this is a really old thread, but with that combo wouldn't you be over spinning that blower by quite a bit? Only asking because i'm curious about IAT temps and how it worked out for you. The smallest recommended upper pulley is 3.6 with a 10% overdrive lower i believe. Any input or help is appreciated. Thanks!
When over spin them hard like that you really need to be running meth. The pulley combo has a lot to do with the rpm you plan to turn. If you plan to spin it hard then you may look into switching to a V2 TI at some point because the self contained don't live when they are overspun. How long no one really knows. Setups and racing will change the time frame. The oil sling washer comes apart in them. The 1500 and V3 TI are the same unit. The V2 TI is the oil fed HD version of the 1500/V3TI that can be over spun without issue.
When over spin them hard like that you really need to be running meth. The pulley combo has a lot to do with the rpm you plan to turn. If you plan to spin it hard then you may look into switching to a V2 TI at some point because the self contained don't live when they are overspun. How long no one really knows. Setups and racing will change the time frame. The oil sling washer comes apart in them. The 1500 and V3 TI are the same unit. The V2 TI is the oil fed HD version of the 1500/V3TI that can be over spun without issue.
man thanks for chiming in! This is my first centri blower coming from positive displacement. Alot of great help in your post! Almost a shame to start with the 1500sl but i guess if you dont spin the snot out of it you can expect a decent life
man thanks for chiming in! This is my first centri blower coming from positive displacement. Alot of great help in your post! Almost a shame to start with the 1500sl but i guess if you dont spin the snot out of it you can expect a decent life
No problem!!! The 1500 is a fantastic head unit!! Snappy and works awesome especially with a cam. I made 831whp with mine (93/meth, cam, LS3 with the 3.47/10%)
No problem!!! The 1500 is a fantastic head unit!! Snappy and works awesome especially with a cam. I made 831whp with mine (93/meth, cam, LS3 with the 3.47/10%)
thats exactly what i’m looking for. Ive got a 3.33 and a 3.47 at the moment. (I havent ran this motor yet). Chris at ECS told me id be over spinning the blower with anything over 3.60 because i have the 10% over drive lower. So ive been debating running the 3.47 or just buying the 3.60
thats exactly what i’m looking for. Ive got a 3.33 and a 3.47 at the moment. (I havent ran this motor yet). Chris at ECS told me id be over spinning the blower with anything over 3.60 because i have the 10% over drive lower. So ive been debating running the 3.47 or just buying the 3.60
How did you like your 3.47?
Over spinning comes from rpm.. A 3.6/10% will turn the blower 52000rpm at 6500rpm (52000rpm is the max impeller speed for the 1500). At 7000rpm the 3.6/10% will over spin the blower by 4000rpm (56000rpm). A 3.47/10% will turn the blower 53948rpm at 6500rpm over spinning it by 1948rpm which its bad. Its for a quick sec from 6300rpm to 6500rpm. All comes back to the setup. I do have a buddy that ran a 3.47/10% on the 1500 shifting at 7000rpm (58097rpm/ overspinning 6097rpm) for about a year and a half. He raced during the week and weekends in mexico pounding the snot out of the unit. After about a year and half the unit started making noise "growling" from the abuse. Personally I don't think overspinning a little will hurt anything. When you over spin the blower you make the low and mid range more aggressive. Alot of times the unit will hit a peak boost number and not make anymore at peak. Example 3.47/10% peak boost 15psi at 6100rpm and 3.33/10% peak boost 15.2psi at 6100rpm. People think there is no gain but all the way up the curve the blower is spinning faster with the smaller pulley so at 4000rpm its now making 12psi where it was making 10psi. Area under the curve is making more.
The 3.47/10% was awesome. I had a 223/235 CMC20 cam on 93/meth. Car is a base with a M6. I ran a best 5.17 best 60-130 rowing gears. Car punched out hard on 50-60 rolls.
Over spinning comes from rpm.. A 3.6/10% will turn the blower 52000rpm at 6500rpm (52000rpm is the max impeller speed for the 1500). At 7000rpm the 3.6/10% will over spin the blower by 4000rpm (56000rpm). A 3.47/10% will turn the blower 53948rpm at 6500rpm over spinning it by 1948rpm which its bad. Its for a quick sec from 6300rpm to 6500rpm. All comes back to the setup. I do have a buddy that ran a 3.47/10% on the 1500 shifting at 7000rpm (58097rpm/ overspinning 6097rpm) for about a year and a half. He raced during the week and weekends in mexico pounding the snot out of the unit. After about a year and half the unit started making noise "growling" from the abuse. Personally I don't think overspinning a little will hurt anything. When you over spin the blower you make the low and mid range more aggressive. Alot of times the unit will hit a peak boost number and not make anymore at peak. Example 3.47/10% peak boost 15psi at 6100rpm and 3.33/10% peak boost 15.2psi at 6100rpm. People think there is no gain but all the way up the curve the blower is spinning faster with the smaller pulley so at 4000rpm its now making 12psi where it was making 10psi. Area under the curve is making more.
The 3.47/10% was awesome. I had a 223/235 CMC20 cam on 93/meth. Car is a base with a M6. I ran a best 5.17 best 60-130 rowing gears. Car punched out hard on 50-60 rolls.
So much good info here, thanks a ton. It sounds like the 3.47 is a nice compromise. I may still search for a 3.60, I haven't made up my mind. Car is a base, manual car and will be on E-85, and I haven't decided if I will be using meth yet. I know the 3.60 is playing it safe, my only concern with the smaller pulleys is aside from being "inefficient" at higher RPM for half a second here and there, do they change the whole curve to be "inefficient". What I mean is, are they changing the entire trajectory, and air temp generated to be inefficient during the duration of the pull? I guess all it comes down to is you can run a smaller pulley and make great power, but just be prepared to repair the unit ahead of schedule maybe.
Any recommendation on what oil to run in the Paxton Novi head unit?
So much good info here, thanks a ton. It sounds like the 3.47 is a nice compromise. I may still search for a 3.60, I haven't made up my mind. Car is a base, manual car and will be on E-85,
Is the cam in the car stock?
and I haven't decided if I will be using meth yet.
e85 is awesome but it will nothing for cooling the intake charge. The ecu will adjust timing based off the IAT sensor. Meth will cool down the intake charge so the computer doesn't pull timing which kills the power. What you dont want to do is make the car meth depend. You want enough fuel system to handle the power if the meth fails. Once you clear the max impeller speed is when your IATS will climb quickly.
I know the 3.60 is playing it safe, my only concern with the smaller pulleys is aside from being "inefficient" at higher RPM for half a second here and there, do they change the whole curve to be "inefficient". What I mean is, are they changing the entire trajectory, and air temp generated to be inefficient during the duration of the pull? I guess all it comes down to is you can run a smaller pulley and make great power, but just be prepared to repair the unit ahead of schedule maybe.
"INEFFICIENT" really isn't a term that I would use in this scenario. Overspinning the blower is said to be "inefficient" yet most all fast centri cars are way over spun. I have heard about people spinning YSI's over 80k on a 65k max impeller speed. Anything under the max impeller will be "efficient". So all the way up the curve the setup will make more power because its making more boost at every rpm. Alot of it comes back to the setup. I have owned both the V3TI/1500 and the V1TI which is the HD oil fed version. Same wheel but different setup ratios. The V3/TI would roll the power curve off around 6500rpm. You could just feel it nose off. The V1 would carry the power and hold it longer so the shifts could be made at 7k. Same wheel but the V3 was a 3.47/10 and the V1 was a 3.12/10. All comes down to the setup.
My wife C6 is getting a A&A setup with a SI. Car is a stock 08 LS3 A6. I do not have plans to go into the motor (ie cam). I'm installing LT'S with hi-flow cats and putting the car on E85. The stock cam tending to make peak around 5800-6000rpm. I'm going to start with a 3.8 pulley which will turn the SI 44K at the 6200rpm shift point. Once my wife gets use to it I will likely drop to a 3.4 which is 49k at 6200rpm. When she gets use to that I'll drop to the 3.25 that will be 51k at 6200rpm. Because I don't want to run meth on her car I will likely stop at the 3.25. If it was my car I would add meth. Go to the dedicated 8 rib setup and secondary drive then drop to a 3.12 turning the blower 53K with no worries
Any recommendation on what oil to run in the Paxton Novi head unit?
07-17-2023, 02:59 PM
