so pissed!!!! so i put on a reichard racing pulley and i only gain 1 pound of boost.... went from a 3.7 to a 3.4 pulley and only gained 1 pound, i dont get it !?!?!? did i do something wrong when i installed the cam or something!?!?!? i don't know what to do now still only see 7lbs on my p1 with the new pulley. im thinking about pulling the cam out if i cant get this resolved. according to the guy who speced it said i shouldn't of seen a lost in boost and the guy i bought it from said he saw no lose in boost when he was running it .... any way i know some of you guys wanted to see the cam card here it is ....






what do you guys think?

 

anybody have any thought ?

 

Leave the cam bet your making more power and faster in a 1/4 mile do not get wrapped up about boost your seeing CFM is where its at. Your now slipping the belt with a 3.4 6 ribs are good to about a 3.7 on a P1 procharger from what I have seen. We couldnt get more then 7psi with a 3.4 on 6 rib p1 went to a 8rib and got 9-10psi with a much bigger cam then your on a 6.0 233/234 112lsa at our 4500 high elevation.

 

Typically you can advance the camshaft at the crankshaft sprocket up to eight degrees with an aftermarket gear-set. Doing so alters valve timing somewhat and will increase your dynamic compression. If your dynamic compression increases, so should your boosted compression. To play with the what-if's of this use the attached MS Excel spreadsheet with plug-in variables for your engine and camshaft. The spreadsheet file is within the zip file.

 

well i know i em a lil slower now then b4 because i raced my buddies srt8 that is supercharged and he beats me now where i used to walk him b4 the swap . even with the slotted reichard racing pulley you think im seeing belt slip ?

 

Wow that is interesting you could pull the cam re-race him then you would know if it the tranny or the cam. I dont know enough about 80's to give advice I do recall seeing several post where guys slowed down after a 80 swap due to different gearing in the tranny.

 

The 80e eats up alot of low end tq specialy from a dead stop. For me going from a 60e to 80e was night day differnts.

 

cant open the zip file.

 

yeah and that is defiantly another reason i em slower the low end went by by for sure. but, freeway speeds i do feel i have more pull now for sure

 

The cam didn't help you with bottom end.
Yea after 80e swap the motor didn't want to do anything with boost in till i got in around the 3k but it would come on hard after that.