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737jetmech 04-05-2013 09:37 PM

8 Attachment(s)
color change ...

737jetmech 04-05-2013 09:45 PM


Originally Posted by 502ss (Post 3899845)
That's some stout power! How fast does she run? Looking very nice!!

Still dialing in ... 93.6 GPS is the best so far ... trying to lower my slip # ... @ 11.5 want to be around 9 or so . Ordered a pair of -2 imco's this week ... we will see what happens ??? Might need some PX5 hydro's also ... time will tell ???

737jetmech 04-05-2013 09:49 PM

1 Attachment(s)
running ... the boat hanging tough on the right of the video is a 94 mph Scarab Panther owned by Forum member Blue Thunder ... We were pace boats for a local poker run ... you can hear and see when it was time to go . :)

Rookie 04-06-2013 12:42 AM

Looks great and nice work!
What size pulley are you running at 5psi? Are you running the 731cam or is that Blue Thunder?

737jetmech 04-06-2013 06:22 AM


Originally Posted by Rookie (Post 3899923)
Looks great and nice work!
What size pulley are you running at 5psi? Are you running the 731cam or is that Blue Thunder?

3.34 pulley ... 731 works really well ... last year I upgraded to a custom Teague blower cam ... it's used in the 800 SC ... grind fall's between the 741 and the 651 similar to Cranes 139661 grind

@050
19.0 BTDC open 57.0 ABDC close 109 max 256 Duration
71.0 BBDC 13.0 ATDC 119 264

Intake 318 Degrees Exhaust 326 632 @ valve intake / exhaust . installed @ 107

Didn't see any gain in power on the dyno ... :(

badmonkey 04-06-2013 07:31 AM

Scarab
 
Great looking boat. What an amazing project. Next year we'll put some HP's to ours as well. Have a great season !!!

tcwcar 04-06-2013 08:45 AM

Looks and sounds great Bob, hope to see you at HapHas run.....Joe

Rookie 04-07-2013 07:29 PM


Originally Posted by 737jetmech (Post 3899953)
3.34 pulley ... 731 works really well ... last year I upgraded to a custom Teague blower cam ... it's used in the 800 SC ... grind fall's between the 741 and the 651 similar to Cranes 139661 grind

@050
19.0 BTDC open 57.0 ABDC close 109 max 256 Duration
71.0 BBDC 13.0 ATDC 119 264

Intake 318 Degrees Exhaust 326 632 @ valve intake / exhaust . installed @ 107

Didn't see any gain in power on the dyno ... :(

Thanks,
That's to bad no gain. I have the same pulleys on my 250's and finalizing some custom cams this week. Probably run NA for the first half of the season then put the blowers on my 454's. What was your compression ratio if you don't mind me asking?

sr73z 04-07-2013 08:29 PM


Originally Posted by 737jetmech (Post 3899873)
running ... the boat hanging tough on the right of the video is a 94 mph Scarab Panther owned by Forum member Blue Thunder ... We were pace boats for a local poker run ... you can hear and see when it was time to go . :)

that thing sounds awesome man!! sick scarab! great job! :eekdrop:

737jetmech 04-08-2013 07:30 AM


Originally Posted by Rookie (Post 3900893)
Thanks,
That's to bad no gain. I have the same pulleys on my 250's and finalizing some custom cams this week. Probably run NA for the first half of the season then put the blowers on my 454's. What was your compression ratio if you don't mind me asking?

C/R 9.37 to 1 static with a 106 cc head ... just under 12 @ boost... tuned for 93 octane on the dyno ... timimg @ 30 . Boost @ 4.5 - 5 lbs.

I have a new pair of 3 inch pulleys ... no plans to use them being @ the edge of a 93 octane tune already .


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