SLP Underdrive Pulley
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Joined: Jan 2009
Posts: 48
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From: new tripoli
just got done putting one on and like nemss1 said feel wise no but you'll never feel a big gain unless u do a cam or heads somthing like that but when u add parts together then the combo makes it work better for future upgrades
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From: Western Burbs of Detroit
Better gas mileage is always a bonus. Why not add the pully and an EWP at the same time and get big boost in highway gas mileage. RPMS come up much quicker with a ud pulley and ewp. Really reduces the parasitic load on your motor. The 2 mods together some have claimed 20 rwhp, I say no way, but I would say a legitimate 10+ rwhp can be head, and maybe a couple more depending on how your car responds to mods. Seems we have some factory freaks and dogs out here. Good luck !!! BTW if you are worried about an EWP failing, I've driven my car from MI to TX and back and other long trips as well without issue. Car runs cooler and I was able to get amazing gas mileage when my car was a h/c full bolt on 490 rwhp 445 rwtq 346 (Best actual was 34.5 mpg, not display). I'll have to post up when I find out what kind of gas mileage the new 402 gets. Only changes were displacement.
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From: Western Burbs of Detroit
How did I get 34.5 mpg ACTUAL mileage ?? 6th gear, 70 mph cruise set, and perfect driving conditions. No traffic, and I don't remember having to even hit the breaks leaving Wiley, TX with a full tank, until St. Louis where I had to stop and fill up. Car was on fumes literally.....
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Thread Starter
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Joined: Jul 2008
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Better gas mileage is always a bonus. Why not add the pully and an EWP at the same time and get big boost in highway gas mileage. RPMS come up much quicker with a ud pulley and ewp. Really reduces the parasitic load on your motor. The 2 mods together some have claimed 20 rwhp, I say no way, but I would say a legitimate 10+ rwhp can be head, and maybe a couple more depending on how your car responds to mods. Seems we have some factory freaks and dogs out here. Good luck !!! BTW if you are worried about an EWP failing, I've driven my car from MI to TX and back and other long trips as well without issue. Car runs cooler and I was able to get amazing gas mileage when my car was a h/c full bolt on 490 rwhp 445 rwtq 346 (Best actual was 34.5 mpg, not display). I'll have to post up when I find out what kind of gas mileage the new 402 gets. Only changes were displacement.
im sure the ewp is alot of money
yeah i wont do the cam and heads till later on
so im just wanted to see if it was worth it for now
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