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Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   OPA/The Jersey Boyz (https://www.offshoreonly.com/forums/opa-jersey-boyz-193/)
-   -   Class 3 (https://www.offshoreonly.com/forums/opa-jersey-boyz/249538-class-3-a.html)

Panther 03-21-2011 08:06 PM
Originally Posted by berns29scarab (Post 3355776)
well since STOCK 500efi's seem to be making in the 475-485 range "if" there stock i would guesstimate there now between 600 and 620
I dunno Bern, that estimate sounds real shy on power for a whipple setup. Rob Stringer was making over 800 hp with Whipples on his 500EFI's with stock compression and an off-the-shelf 741cam. Also that's with steel heads. He even made 900 hp on one pull.

[youtube]www.youtube.com/watch?v=k5m4Cbnt5NQ[/youtube]
[youtube]www.youtube.com/watch?v=yYRR0tN5TxA[/youtube]

Panther 03-23-2011 09:55 AM
Bern, I found some more info.

If all they did was bolt a set of 2.3's onto the 500efi's it'll make 700 hp @ 6 lbs boost.

If they went with a bigger cam, ported heads or alunimum heads you're looking upwards of 800 hp.

berns29scarab 03-23-2011 05:27 PM
dayum !! there goes those bravo's !!

TylerCrockett 03-27-2011 10:01 AM
Originally Posted by Panther (Post 3357470)
Bern, I found some more info.

If all they did was bolt a set of 2.3's onto the 500efi's it'll make 700 hp @ 6 lbs boost.

If they went with a bigger cam, ported heads or alunimum heads you're looking upwards of 800 hp.


3.3 Whipples with cnc ported Dart heads and a low lash solid roller and 9#'s of boost. you guys are all off. The bravos are for sale he installed NXT drives.

F1-00 Racing 03-27-2011 03:43 PM
Originally Posted by TylerCrockett (Post 3360907)
3.3 Whipples with cnc ported Dart heads and a low lash solid roller and 9#'s of boost. you guys are all off. The bravos are for sale he installed NXT drives.
yawn...... thats all hes got? Hows his new SVL coming along Tyler?

Bilgerat 03-27-2011 03:51 PM
Originally Posted by F1-00 Racing (Post 3361157)
yawn...... thats all hes got? Hows his new SVL coming along Tyler?
He got a SVL?? Really ? and what could Tyler do to it? Aren't they supposed to be sealed, or is Tyler able to Seal 525's for OPA

Wahoo ATV 03-27-2011 06:58 PM
The blowers on jim's boat are as big as my mail box!

happy 03-27-2011 07:29 PM
thats not the only SVL from DETROIT !! come on race season.:drink:

Panther 03-28-2011 09:55 AM
Originally Posted by TylerCrockett (Post 3360907)
3.3 Whipples with cnc ported Dart heads and a low lash solid roller and 9#'s of boost. you guys are all off. The bravos are for sale he installed NXT drives.
Nice!!!

The sit-down OL that had a setup like that made 900+ hp on Zul's dyno on pump gas!

And this is for class III???:eek:

TylerCrockett 03-29-2011 07:42 AM
Originally Posted by Panther (Post 3361717)
Nice!!!

The sit-down OL that had a setup like that made 900+ hp on Zul's dyno on pump gas!

And this is for class III???:eek:



Sounds like a perfect Class 4 boat :D


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