Melling 24209 Camshaft Stock or Perf ?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=15057
Printed Date: May-08-2024 at 4:05pm
Topic: Melling 24209 Camshaft Stock or Perf ?
Posted By: Hooty222
Subject: Melling 24209 Camshaft Stock or Perf ?
Date Posted: August-25-2009 at 3:07am
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Hello all, any thoughts on a Melling camshaft P# 24209 ? Any HP increases over the stock pleasurecraft engine? I ask all of this because I have a 24209, and a set of GT40p's to go on this winter. Just don't have alot of cam information on the web anymore on Reverse ROT engines. (Unless you go custom grind) and wondered what I could expect..
Thanks, Bob  ------------- 1986 Ski nautique 351 1988 Barefoot nautique 454 |
Replies:
Posted By: 81nautique
Date Posted: August-25-2009 at 9:33am
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Hooty, I found the specs for that cam on the net and pluged them into desk top dyno. It's better than stock but nothing remarkable. I would call cam research and have them grind one for you. ------------- You can’t change the wind but you can adjust your sails |
Posted By: Hooty222
Date Posted: August-25-2009 at 9:17pm
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Thanks for your help... Any part number / cam spec you may suggest for a 351 R ROT with gt40p heads?
(1986 sn 2001) Bob ------------- 1986 Ski nautique 351 1988 Barefoot nautique 454 |
Posted By: kapla
Date Posted: August-25-2009 at 9:37pm
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I did that same upgrade now on my 92 engine but it is a std rotation..I ordered by recomendation of these guys here a cam from cam research and the model is the cr266, i don´t know if its the same model for a rr engine..
the cost was $265 for the cam and the lifters..and and extra 60 for having the breakin service...plus shipping talk to scott from cam research he will know the best for your set up!!! cam specs are the following lift 490 Int. exh. duration @ .50 218 int 222 exh. The engine is almost complete now and the striger job its in its way so no comments yet on performance... telephone (303)762-0022 question were did you order the heads? ------------- <a href="">1992 ski nautique |
Posted By: Hooty222
Date Posted: August-25-2009 at 10:16pm
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Thanks, got the heads off of ebay..... $ 340.00 to my door. hope there are no problems, will check out this winter.
Bob ------------- 1986 Ski nautique 351 1988 Barefoot nautique 454 |
Posted By: kapla
Date Posted: August-25-2009 at 11:05pm
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you might need to upgrade the valve springs if you choose the cr cam...ask scott he will tell you!!! ------------- <a href="">1992 ski nautique |
Posted By: TRBenj
Date Posted: August-26-2009 at 12:26pm
Not just the CR cam, but any cam that approaches .500 of lift. Basically if you want to run anything but the stock cam on a 351w, then you should upgrade the stock P valvesprings. Kap ended up ordering the same cam that I have in my '90. I replaced the whole top end at once (heads/intake/cam) and it really woke the boat up. Be sure to get the bolt holes on the heads drilled out to 1/2" before you go to bolt them on! Stock size on the P's are 7/16" since they originally came on 302's. ------------- |
kapla wrote: