I was just wondering if there was any big differance with the HP gain's on a Top Mount vs. Ram Horn? I've seen gain's on the ram horn, but only on a stock GSR with 10 psi. and those #'s where around 50-75whp. Havn't seen any on a Top Mount though.

I'm guessing there would be more HP gain's from the Top Mount because of the longer runner, but I've heard they spool smaller turbo's a little slower then a Ram Horn. I'm Just wondering because I'm running a T3/T67 and I love the spool but I really want to go equal length Mani. If at all possible, where in the Powerband would these gains be?

Anyone have any experiance with this? Or any dyno #'s? I've have a Stock Block @ 10 psi (B18C5) and a mildly built head (crower turbo cam's, port match, 3 angle, springs & retainers). I'm just wondering which would be better w/ 3'' DP..

Thanks for the help..

 

I never notice any diff. between the 2 (FullRace ram horn V/S FullRace top mount) I never did side by side dynos, but I did run the car at the track and it didnt run any faster or spool any better.

 

Might just be better off to go Ram Horn then huh?

 

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those cams are gona suck either way