I feel like this is wayy to low for what I have, with my v1 and a powerpipe and a 3.6 pulley with a non intercooled kit shouldn't I see around like 8-9psi? If not I'm getting a smaller pulley soon lol
6 PSI with powerpipe and non-intercooled??
bullitggt
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Sounds like you don't remember if the tensioner was changed. For $30 change it.
---------- Post added at 08:30 AM ---------- Previous post was at 08:27 AM ----------
Sounds like belt slip. At what rpm is it first hitting 6psi?
---------- Post added at 08:30 AM ---------- Previous post was at 08:27 AM ----------
Sounds like belt slip. At what rpm is it first hitting 6psi?
Could also be the homemade powerpipe. Might be as restrictive as factory inlet for some reason. Are you draw through or blow through maf? If draw through do you have a reducing coupler or anything on it? K&N filter or auto parts jobbie? Like its been said lots factors at play here.
Wait till you get it on a dyno to see what up. If its making good power then ignore the boost number. Bring the 3.4 pulley with you, and go from there.
Wait till you get it on a dyno to see what up. If its making good power then ignore the boost number. Bring the 3.4 pulley with you, and go from there.
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For what its worth before I took my car appart I had a v1 s trim with 3.40 pulley stock vortech inlet stock maf stock Vortech filter...even the stock belt which wasnt really tight enough. ..and na stage 2 cams made about 9.5 psi on an average temp day at 6500
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Completely different animal.
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I just did a pull in 2nd looking at the boost gauge, it looks like it hits about 5 psi at 5k, I'm gonna do the belt tensioner, looking at the belt it doesn't seem very tight when you twist it, I can almost get a full turn sideways outta it
That sounds loose to me, I cant get any movement out of my belt whatsoever. Double check routing, that the belt is the right length/P# and that the tensioner isn't pooched.
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same here
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Heres a vid of it, maybe itll give you guys a better picture if you think its loose or not, it seems pretty dam loose to me, my routing all seems fine however.
The belt I have is the belt I got in this kit:
Vortech 2000-2004 Mustang 4.6L Mounting Bracket Assembly [V4FL111-031] - $279.00 : SuperchargersOnline, Worlds largest Supercharger Resource. Get Serious About Power
which is a Belt, K061080-Gatesd Saleen
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I was worried about mine being loose, Yours is deff loose! The belt I have on was the one im soposed to run with the 10% OD crank (its not on yet lol) and its a good bit tighter than that but thats too loose IMO but Idkk
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That's what I'm thinking, somethings not right..
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You sure the 3.6 pulley is on the blower and not the 3.4? How easy is it to pull up on the belt? If you can get another video of you pulling up on the belt and then of the position of the tensioner at rest and then with you pulling on it as hard as you can.
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Looks like you are not using much effort to pull on that belt. My stock tensioner sat similar to yours with the 3.6 pulley and 108" belt, but I needed to pull a little harder to move it that much.
Below is a pick of my Dayco tensioner with 3.33 pulley and 107.55" belt. You have a lot of slack left on that tensioner.
![Image]()
Below is a pick of my Dayco tensioner with 3.33 pulley and 107.55" belt. You have a lot of slack left on that tensioner.
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So what do you think then? I need a smaller belt? New tensioner? Or is belt slippage really not my problem here?Looks like you are not using much effort to pull on that belt. My stock tensioner sat similar to yours with the 3.6 pulley and 108" belt, but I needed to pull a little harder to move it that much.
Below is a pick of my Dayco tensioner with 3.33 pulley and 107.55" belt. You have a lot of slack left on that tensioner.
![Image]()
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Well, you won't find out until you start trying different things. I would start with the tensioner and while you are at the store pick up a Gates K061075 belt which is 107.55". Change the tensioner and see how it is. Take it for a drive. If still loose try the smaller belt. Unfortunately, there is no belt size in between a Gates 107.55" and 108.14". The Dayco 5061080 is 108.07", which may make it a little tighter, but the Dayco grooves aren't as deep as the Gates.
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I say yea do it tomorrow and let us know 
Cause I would like to know lol
Cause I would like to know lol
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Alright will do! I'll try the tensioner and see where it goes from there, I just did another pull, and it pulls hard up to 5psi at 5k, then after that up to 6k the gauge just kinda falls flat on its face and barley moves up lol, its gotta be belt slip, idk what else it would be
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