Added 310 Pulley

[Jim Vaccaro]

456/455 @ 13lbs boost..actually a tad over 13lbs
AF ratio 11.1
Power Mods are:
Diablo Chip,Mac Catback,Bassani catted x pipe,Cool air kit,310 pulley


Jim V.

 

[i8u]

Cool!5 lbs of boost with that? Where did you get it?

 

[Jim Vaccaro]

Originally posted by i8u
Cool!5 lbs of boost with that? Where did you get it?

Amazon Racing,,It is a lazer cut Aluminum pulley.Black anodized..Nice Piece..

Jim V.

 

[i8u]

Thanks.:beer:

 

[mjchip]

Originally posted by Jim Vaccaro
456/455 @ 13lbs boost..actually a tad over 13lbs
AF ratio 11.1
Power Mods are:
Diablo Chip,Mac Catback,Bassani catted x pipe,Cool air kit,310 pulley


Jim V.

:thumbsup:

MJ

 

[LR 01 Cobra]

Jim: Nice numbers! Amazon has some really nice stuff!
That's the kit I'm getting. What belt did you use.
Part #
Thanks in advance!

Tim

 

[HIGH ROLLER]

Jim,
Excellent info and great numbers for your setup!

Matt

 

[totaled]

Ditto on the great numbers for your setup :thumbsup: These Cobra's seem to really respond well to mods :-D

 

[StreetSnake]

What's the deal Jim? Thought you were gonna hold on to your warranty for a little while. lol What happened did you get a case of Bowling Green fever. Barry:beer: :lol:

 

[cubes]

Good numbers. Why didn't you go with the 2.93 pulley?

 

[T3 Cobra]

Originally posted by cubes
Good numbers. Why didn't you go with the 2.93 pulley?

Yeah what he said

 

[Rick@Amazon]

Well all I can say he held out longer then mosts. hehehehe Great numbers Jimmy!! Jim made a wise choice in the 3.10. It makes the boost, has a nice belt wrap and the belt don't slip. Better to have 13-14 lbs of boost all through the rpm range then to have 15 then have it drop to 10 by 5000 rpm. Now for the 2 lb lower! lol
Congrats JImmy
Rick

 

[Jim Vaccaro]

The belt i used is 74.5 Stock belt is 75.5.
I made the mistake of driving a pullied car..
I went with the 310 from Rick..I always take his advice.He gave me a boost level i feel comfortable with..I really only wanted 12lbs.The 320 size would of been ok also.
I really didn't want more boost. :chicken:

Jim V.:burnout:

 

[03DOHC]

Originally posted by AmazonRacing
Well all I can say he held out longer then mosts. hehehehe Great numbers Jimmy!! Jim made a wise choice in the 3.10. It makes the boost, has a nice belt wrap and the belt don't slip. Better to have 13-14 lbs of boost all through the rpm range then to have 15 then have it drop to 10 by 5000 rpm. Now for the 2 lb lower! lol
Congrats JImmy
Rick

So are you saying that the reason for peoples boost dropping off w/the L pulley and smaller, is due to belt slip?

 

[Jim Vaccaro]

Another reason for my decision.
While at Bowling Green i saw 293 pullied cars getting the same or more MPH as the 280 pulied cars.As a matter of fact there was a car there with 6lb lower and L(293)upper that ran 96MPH to the 1/8 and only 118 to the 1/4.That car dynoed 515/545 All that tqe aint worth a dam after the first 100 ft.Once you get to 6400 and back to about 5000 ,your peak TQE number is not going to help you.
500 rwhp on the dyno nice number,however how much of the 500 will you have after 3 gears under load?
I will take my car to the track soon to get real world numbers..
Larger pullied cars seemed to fair better on the big end.

Jim V.

 

[SB 03]

I would think the 3.1" pulley would be better suited for the blower, not maxing out its effieciency, sp.., sounds like it, seems the boost doesnt fall off, great job guys
Greg

 

[03DOHC]

Jim V. can you post your dyno graph so it can be compared to others? Thanks.:thumbsup:

 

[sfkarp]

Thanks for the info Jim. And thanks much for all your time spent with me and my wife at bowling Green. Looking forward to your times with the new setup.

 

[TopRacer]

Correct me if im wrong, but doesn't the 2.93 pulley give 12-12.5lbs of boost and you are running 3.10 and have 14-15lbs...that doesn't seem right...

does the cool air kit make the boost rise also??

 

[SB 03]

no he said it made 13, I have heard the 2.93 pulley make 14-15 lbs.