1st round mods
03-22-2018, 03:44 AM
#1
Race Director
Thread Starter
1st round mods
OK so going with AR long tubes and akra evolution, TM tb and BMS filter. Thought I might as well do pulley while at it, so...pulley suggestions with this set up please....
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Z06NJ (03-22-2018)
03-22-2018, 09:03 AM
#2
03-22-2018, 09:53 AM
#4
Premium Supporting Vendor
Thanks!
Dane
03-22-2018, 12:31 PM
#5
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Shostopper (03-22-2018)
03-22-2018, 01:14 PM
#6
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03-22-2018, 01:31 PM
#7
Drifting
I did the upper from Cordes at the same time I had AR headers done. Three months later I did the lower, E85(flex fuel) and dual nozzle Alky control system. I keep getting use to the power. For WOT pulls with that set up meth was needed. I only use E85 for track and around town 91. MPG really drops off with E. Here we get varied blends of E. Phoenix, E54, Tucson has E85. With the flex fuel systems it adjusts the CPU for the various blends.
03-22-2018, 02:04 PM
#8
Le Mans Master
I would do 15% Under ATI. More than that, you need cooling n fuel. Or do meth at the same time, you'll love the feeling
)
If you go on meth, then cordes upper 3.5 and lower with the rest of your stuff should yeld 7**WHP!!
)If you go on meth, then cordes upper 3.5 and lower with the rest of your stuff should yeld 7**WHP!!
Last edited by timmyZ06; 03-22-2018 at 02:05 PM.
03-22-2018, 05:29 PM
#9
Pro
Ok so,
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
03-22-2018, 06:13 PM
#10
Good stuff here^^ thanks
03-22-2018, 06:45 PM
#11
03-22-2018, 07:02 PM
#12
Team Owner
Ok so,
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
The blower has a efficiency range or compressor map. Spin it too fast and you get less hp per pound of boost and higher IAT's.
03-22-2018, 07:14 PM
#13
Pro
The blowers efficiency range ends at about 18%. Spin it past that and it’s not gaining much HP, but you’ll be gaining a lot of heat. And you can actually lose power as the blower compresses air so innefficiently and the rotors are spinning too fast so they grab and push less air than it would in its efficiency zone.
03-22-2018, 07:16 PM
#14
Team Owner
03-23-2018, 12:38 AM
#15
Race Director
Thread Starter
As of right now, I don't plan on any other mods. Shouldve mentioned this I guess.
Thank you. This is what Im thinking.
Tune...of course...
Ok so,
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
It's not the "Upper vs lower" that makes one safe on 93 and one not. It's the Overdrive Percentage. There's Upper pulleys that are 5%, 7%, 9%, 15% and more custom sizes in between. Then there's lower pulleys that are 5%, 9%, 10%, 15%, 18% and more sizes in between.
For a stock cam on 93 running no Meth injection, I would NOT go over 9%. I know people do it but I've seen some pretty bad results with that much pulley without the aid of Meth. It will pull a LOT of timing in the summer heat after a pull. Don't even bother tracking the car with a 15% + No cooling mods.
I would go with a 2.30/2.31/2.38 Upper or a 5% or 9% lower pulley (I would recommend the 9% Innovators West crank pulley myself).
Now if you're just after some peak numbers and whatnot, by all means pulley the snot out of it but as I've posted about many times on various forums, when dealing with the LT4, you have to be MUCH more careful and thoughtful about adding supercharger RPM than with LSAs/LS9s etc.
Ben @ Weapon-X broke it down very nicely here:
http://www.camaro6.com/forums/showthread.php?t=521860
https://weaponxmotorsports.com/blogs...ng-mods-needed
Tune...of course...
Last edited by Boba Fett; 03-23-2018 at 12:40 AM.
03-23-2018, 03:20 AM
#16
I did ARH off road x, halltech, upper pulley, meth and e85(e55 tunes) I put down 711/691 and holy hell does it pull. I went with the largest pulley to try and prevent creating more heat and ease of installation. I however plan to road race so that was the biggest reason for not going with a 15% or 18%
03-23-2018, 07:26 AM
#17
Le Mans Master
If you dont do atleast meth, then stick with your current list. I always recommend lower first, cuz it gives you more belt wraps, less slipage. But i wouldn't bother swapping the HB for 9%! Its a lot of job, got at least 15% when you do it!
03-29-2018, 07:00 AM
#18
Race Director
Thread Starter
Yes it’s calculatable. I know David at Vengeance told me their 2.30” is an 8% pulley. And I think 2.31 is 7% and 2.38 is 5%. I really wish a vendor or shop would lay out a pulley guide as thorough and inclusive as we had available for LSA and LS9 engines, we always knew the overdrive percentage and limits of certain parts.
The blowers efficiency range ends at about 18%. Spin it past that and it’s not gaining much HP, but you’ll be gaining a lot of heat. And you can actually lose power as the blower compresses air so innefficiently and the rotors are spinning too fast so they grab and push less air than it would in its efficiency zone.
03-29-2018, 12:30 PM
#20
Team Owner
I would suggest the 2300 over the pulleys. My mod list now is
MAMO PTB.
Heartbeat 2300 Blower
AR 2 inch Jethot coated headers
Halltech intake and Halltech tric, dyno tune
DCS shock Controller
Next mod is LG cheek cooler kit. Allows an intercooler for each bank on the engine and frees everything up for max cooling to the radiator. This package fears no stock car.
Plan on building 2 of them 1 A8 1 M7.
ESP a ZR1 or DEMON bye bye!
MAMO PTB.
Heartbeat 2300 Blower
AR 2 inch Jethot coated headers
Halltech intake and Halltech tric, dyno tune
DCS shock Controller
Next mod is LG cheek cooler kit. Allows an intercooler for each bank on the engine and frees everything up for max cooling to the radiator. This package fears no stock car.
Plan on building 2 of them 1 A8 1 M7.
ESP a ZR1 or DEMON bye bye!
Last edited by 3 Z06ZR1; 03-29-2018 at 12:31 PM.