How much more power with a tunnel ram type of intake?
09-20-2004 | 06:40 AM
#11
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From: Pompano Beach FL, USA
Re: How much more power with a tunnel ram type of intake?
In back to back testng the tunnel ram was worth about 40 HP on a pair of 540's, probably would be more with the larger displacement. Also, as part of the same test we did twin 750's compared to Dominators. Guess which made about 15 more HP at 6000 and 25 ft lbs more at 4000?
This was on an old Edelbrock Victor, I think the Dart is better but never tried it, went to blowers next.
Hint - it was not the dominators
This was on an old Edelbrock Victor, I think the Dart is better but never tried it, went to blowers next.
Hint - it was not the dominators
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09-20-2004 | 07:06 AM
#12
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From: GLOC
Re: How much more power with a tunnel ram type of intake?
WV-
I just built a set of Tunnel Rams and the motors are great.
Plenty of low end for the boat, afterall the top end is where it counts and I think from what I read and heard during the research phase of building around 30hp over Single plane with a Dominator. The custom Intakes may be the best route and run about $2000; I used Holley and have two Weiand that I will try next on another set in a ouple of weeks. The advantage of the Holley was you can use your MSD or Merc ingnition and distributor.
Zul builds a couple of nice T/R motors; and Pfaff where I got my cams has built a few 598's like yours with huge hp #'s if you call Steve out there he can tell you about them.
I just built a set of Tunnel Rams and the motors are great.
Plenty of low end for the boat, afterall the top end is where it counts and I think from what I read and heard during the research phase of building around 30hp over Single plane with a Dominator. The custom Intakes may be the best route and run about $2000; I used Holley and have two Weiand that I will try next on another set in a ouple of weeks. The advantage of the Holley was you can use your MSD or Merc ingnition and distributor.
Zul builds a couple of nice T/R motors; and Pfaff where I got my cams has built a few 598's like yours with huge hp #'s if you call Steve out there he can tell you about them.
Last edited by P Offshore; 09-20-2004 at 07:45 AM.
09-20-2004 | 06:26 PM
#13
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From: Grand Rapids Mi. U.S.
Re: How much more power with a tunnel ram type of intake?
Tom, currently I'm using a Holley Pro Ram. The boat GPS 95. If I was starting fresh I'd problaby use the Dart (longer runners). I had problems with the efi earlier in the season. I installed a single plane dart with a 1050 and lost about 7 mph. Tried a 1250 and narrowed it to 5 mph loss. When I was running the blower GPS 101 and a lot of blowed up drives.
Last edited by JimV; 09-20-2004 at 06:40 PM.
09-20-2004 | 07:00 PM
#15
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From: LaPorte IN.
Re: How much more power with a tunnel ram type of intake?
MBAM,
My guess is the Dominators made more torque and HP than the 750's. From speaking to some other enthusiasts that don't frequent the board it seems there could be as much as 50 HP from the change. I would likely go 1050's. Winter gets pretty boring so this may be happening.
Craig
My guess is the Dominators made more torque and HP than the 750's. From speaking to some other enthusiasts that don't frequent the board it seems there could be as much as 50 HP from the change. I would likely go 1050's. Winter gets pretty boring so this may be happening.
Craig
09-20-2004 | 08:36 PM
#16
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From: LIBERTY TOWNSHIP,OHIO
Re: How much more power with a tunnel ram type of intake?
WV,I'm using edlebrock on a 548,it has plenty of low ,mid and 6200 on top w/ a hydraulic roller.The edlebrock is close to the dart except for the top,have to use adaptors to turn 4150's sideways,so I made my own top.I believe T/R's run more consistant in hot humid weather than single carbs.my .02
