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Author
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Topic: 03 cobra pulley change?
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johnson50
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Member # 4608
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posted
 
 
is there any other thing i have to do if i change from the stock supercharger(only) pulley to like a 2.93 or lower? thanks
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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TRIXSNK
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Member # 2844
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posted
On my old Cobra i added a 100mm aux idler to prevent slip but i had a 2.76 pulley.
I went with a gates 74.5 belt as well.
Oh ya a tune might be a good idea as they say a 3.10 should be the smallest w/o a tune.
Either way gotta get that A/F checked after ![[burnout]](graemlins/burnout.gif)
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9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
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91 5.0 5speed
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Member # 1867
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posted
quote:
Originally posted by johnson50:
is there any other thing i have to do if i change from the stock supercharger(only) pulley to like a 2.93 or lower? thanks
What color is your Cobra? is it red?
Posts: 1383 | From: Vallejo | Registered: Sep 2002
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03SVT
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Member # 5987
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posted
If you need the pulley removal tool I will let you borrow it PM if you need help I am glad to as long as you have the tools.
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03 Cobra (wife), 06 G35 Coupe (sold), 07 TBSS (mistress), 07 F150 Harley Davidson (girlfriend) 08 BMW M5 (side chick),
Posts: 79 | From: Vallejo | Registered: Sep 2005
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johnson50
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Member # 4608
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posted
I have a black 03. and TRIXSNK, when you say A/F, you mean air/fuel mixture right? lets say i put a 2.95 pulley on and no other idle, etc. will i mess something up or no. and will i need another size belt for a 2.95?
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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johnson50
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Member # 4608
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posted
and thanks 03SVT but i have the pulley puller covered.
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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91 5.0 5speed
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Member # 1867
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posted
quote:
Originally posted by johnson50:
I have a black 03. and TRIXSNK, when you say A/F, you mean air/fuel mixture right? lets say i put a 2.95 pulley on and no other idle, etc. will i mess something up or no. and will i need another size belt for a 2.95?
For best results and to possibly save your motor get a tune when you do the pulley swap. You will also need a different size belt. I think I may have seen your car at 7 flags in Fairfield. You reved at my Cobra while I was at the car wash. I have a redfire 04 if that was you. I think you need a gates 74.5 belt but I could be wrong. I will check to see what is on my car and let you know
Posts: 1383 | From: Vallejo | Registered: Sep 2002
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johnson50
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Member # 4608
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posted
i may have been that person on north texas. but i forget. i do live around that area. anyone know the number to JeffS of santa clara.
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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Jeff S
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Member # 371
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posted
quote:
Originally posted by johnson50:
i may have been that person on north texas. but i forget. i do live around that area. anyone know the number to JeffS of santa clara.
408-623-2373 ![[Big Grin]](biggrin.gif)
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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johnson50
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Member # 4608
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posted
thanks for the # and does anyone know the stock supercharger pulley size on a 03.
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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91 5.0 5speed
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Member # 1867
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posted
quote:
Originally posted by johnson50:
thanks for the # and does anyone know the stock supercharger pulley size on a 03.
stok is 3.65
Posts: 1383 | From: Vallejo | Registered: Sep 2002
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johnson50
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Member # 4608
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posted
thanks and like i read earlier, i can get a 3.10 pulley and dont have to tune it. im just tryin to put the smallest pulley on i could and do nothing else. thanks ![[Smile]](smile.gif)
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2003 10th anniv. cobra
2.3l gen2 Whipple
AED Tuned
HP/TQ: too much!
Posts: 256 | From: fairfield/suisun | Registered: Jun 2004
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Jeff S
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Member # 371
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posted
quote:
Originally posted by johnson50:
thanks and like i read earlier, i can get a 3.10 pulley and dont have to tune it. im just tryin to put the smallest pulley on i could and do nothing else. thanks
Changing the pulley to ANY size without a tune is a VERY bad idea and not give anywere close to optimal performance and safety.
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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TRIXSNK
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Member # 2844
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posted
quote:
Originally posted by Jeff S:
quote:
Originally posted by johnson50:
thanks and like i read earlier, i can get a 3.10 pulley and dont have to tune it. im just tryin to put the smallest pulley on i could and do nothing else. thanks
Changing the pulley to ANY size without a tune is a VERY bad idea and not give anywere close to optimal performance and safety.
Sorry i should have clarified to not lead anyone in the wrong direction ![[Frown]](frown.gif) .
When i said "they" i meant what others have tried not saying you should attempt the same.
Just like Jeff said with any pulley change it's imperative to get it on a dyno, tuned, and that will usually come with the A/F ratio.
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9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
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