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Search: Posts Made By: JaniH
Showing results 1 to 25 of 176
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Forum: General Q & A
04-08-2024, 02:47 PM
Replies: 55
Views: 3,463
Posted By articfriends

You can always put it down .100 in hole and seal...

You can always put it down .100 in hole and seal it then cc the difference too if in doubt
Forum: General Q & A
04-08-2024, 08:45 AM
Replies: 55
Views: 3,463
Posted By Brad Christy

Jani, I have an '02. I think it runs really...

Jani,

I have an '02. I think it runs really well for the power you give it. Mine has the 496HO with the Whipple stage 2 tune and an M1 ProCharger. Procharger advertises this kit at 615HP. Opinions...
Forum: General Q & A
04-08-2024, 07:11 AM
Replies: 55
Views: 3,463
Posted By articfriends

There a stepped hull, Ive heard that steve Stepp...

There a stepped hull, Ive heard that steve Stepp or something to do with Velocity had input on that 280 PQ hull. I bought a stock one a couple years ago w stock 502 as a quick flip/plus used it to...
Forum: General Q & A
04-07-2024, 02:31 PM
Replies: 14
Views: 837
Posted By Rookie

These arrived a little bit ago. I'll be swapping...

These arrived a little bit ago. I'll be swapping out my single planes later this summer....
Forum: General Q & A
04-07-2024, 12:12 PM
Replies: 55
Views: 3,463
Posted By articfriends

Yes, the runner length of 14/15" dictates hp peak...

Yes, the runner length of 14/15" dictates hp peak on these restricted intake engines, even with intake mods, You can add more and more cam on them and gain nothing, just shifts tq peak to a higher...
Forum: General Q & A
04-05-2024, 11:21 AM
Replies: 55
Views: 3,463
Posted By sutphen 30

I've seen 630hp w/ a crane 240/248 ls112 for an...

I've seen 630hp w/ a crane 240/248 ls112 for an 8.1L in a gen 6 502,cams a double swap,dart heads 10-1 compr. on an ego breaking dyno.:)
Forum: General Q & A
04-05-2024, 11:12 AM
Replies: 55
Views: 3,463
Posted By articfriends

Fwiw I know someone that used that ron sporl...

Fwiw I know someone that used that ron sporl grind in a modded 502 mag, had a chopped down , extrude honed intake, bored tb, dart heads. He advised customer to advance it some, guy randomly advanced...
Forum: General Q & A
03-31-2024, 05:50 PM
Replies: 13
Views: 648
Posted By im MartinB

Well I've blue printed a lot of boats over the...

Well I've blue printed a lot of boats over the years, mostly boats running 80+ mph. My boat was running 86 when I did the blue print.. and gained a whopping 1mph or probably a little less. I went...
Forum: General Q & A
03-30-2024, 06:38 PM
Replies: 13
Views: 648
Posted By Rookie

Yes, the boat handling characteristics improved...

Yes, the boat handling characteristics improved and the balance is better. My Panther was a good boat in rough water, but it immensely helped the angle of attack. Less trim and carries the bow better.
Forum: General Q & A
03-29-2024, 10:00 PM
Replies: 13
Views: 648
Posted By im MartinB

Lower strakes 31 Sonic

I am going to add to my lower lifting strakes this week and I thought I would see if anyone has done this to a 31 sonic before? I was planning to start with 12" and see how the boat likes it. It's...
Forum: General Q & A
03-25-2024, 05:56 PM
Replies: 55
Views: 3,463
Posted By ICDEDPPL

Personally , I like my CR lower, closer to 8.0:1...

Personally , I like my CR lower, closer to 8.0:1 for blower and seat pressure clower to 200# but if you`re not running to 6000rpm probably fine.
Fill your cylinders with fuel and air instead of...
Forum: General Q & A
03-24-2024, 05:56 PM
Replies: 55
Views: 3,463
Posted By Rookie

If those were the only cam choices, I'd go with...

If those were the only cam choices, I'd go with the Comp cams and run 1.8 rockers. at the least on the exhaust side. 0.340" lobes are going to be easy on the valve train. (I do actually run 1.8's on...
Forum: General Q & A
03-24-2024, 02:40 PM
Replies: 55
Views: 3,463
Posted By Tartilla

If you used bushed rods, you could leave the CR...

If you used bushed rods, you could leave the CR higher for NA, and if you ever go boosted you could do a quick tear down/inspection and machine them to a more friendly boosted CR.

Flotek 290s are...
Forum: General Q & A
03-04-2024, 11:23 AM
Replies: 240
Views: 91,075
Posted By Tartilla

Great Eric Weingartner video on Promaxx 290 and...

Great Eric Weingartner video on Promaxx 290 and 317 heads on a 496 dyno comparison.

These are essentially the same castings as Floteks.

He milled the 317s to have the same chamber size as the...
Forum: Do It Yourself, Boating on a Budget
03-02-2024, 10:13 PM
Replies: 12
Views: 1,354
Posted By NautiSouth

There's a calculator on this page that might...

There's a calculator on this page that might help:

http://allmondmarine.com/valvetrain-engineering-services/ (https://allmondmarine.com/valvetrain-engineering-services/)
Forum: Prop Talk
02-29-2024, 11:02 AM
Replies: 6
Views: 567
Posted By 87MirageIntruder

I've got Cutting Edge 28P and 30p 5 blade props...

I've got Cutting Edge 28P and 30p 5 blade props and I like them on my Nordic Heat.
...
Forum: General Q & A
12-30-2023, 08:20 AM
Replies: 17
Views: 1,585
Posted By liquidlounge

I...

I (https://www.offshoreonly.com/forums/report.php?p=4807535) found SB's post from 2021:


Found a 502 with max power 5600rpm I had run into pipemax:

@ 5800 RPM
- Induction System Tuned Lengths...
Forum: General Q & A
12-29-2023, 08:23 AM
Replies: 17
Views: 1,585
Posted By snapmorgan

Pretty sure that i read where the OP has...

Pretty sure that i read where the OP has purchased a set of "roval" heads. I seriously doubt that the intake will be a restriction and no amount of porting is going to help the situation. Maybe...
Forum: General Q & A
12-29-2023, 05:25 AM
Replies: 17
Views: 1,585
Posted By articfriends

[QUOTE=liquidlounge;4887676]Isn't there some kind...

[QUOTE=liquidlounge;4887676]Isn't there some kind of "science" that determines ideal intake runner lengths? It seems like it has been lightly discussed here at OSO, but I don't recall anyone ever...
Forum: General Q & A
12-28-2023, 10:14 AM
Replies: 17
Views: 1,585
Posted By liquidlounge

Isn't there some kind of "science" that...

Isn't there some kind of "science" that determines ideal intake runner lengths? It seems like it has been lightly discussed here at OSO, but I don't recall anyone ever reporting that they arrived at...
Forum: Do It Yourself, Boating on a Budget
12-13-2023, 05:45 AM
Replies: 32
Views: 3,022
Posted By BillK

Whats interesting on those is that the bottom of...

Whats interesting on those is that the bottom of the skirt looks fine ? I would think that if they were loose and rocking that the bottom of the skirt would take the most beating ? Strange.
Forum: General Q & A
12-09-2023, 10:31 AM
Replies: 24
Views: 2,003
Posted By getrdunn

Several proven shelf cams with your combo that’s...

Several proven shelf cams with your combo that’s been around a long time will suit you fine but ya a custom grind is a great option also but will need your flow numbers and CR.

If you’re...
Forum: General Q & A
12-02-2023, 11:52 AM
Replies: 35
Views: 13,152
Posted By Tartilla

They also work harden as they break in. Powdered...

They also work harden as they break in. Powdered seats are a win/win system. Easy to machine, best to break in and seal.
Forum: General Q & A
11-23-2023, 01:26 AM
Replies: 13
Views: 1,316
Posted By Tartilla

Floteks are a great marine choice. They have...

Floteks are a great marine choice. They have powdered metal seats.

I normally don't like powdered metal parts. Like the new S&W powder metal hammer etc.

But the tech in the powdered seats is...
Forum: General Q & A
11-08-2023, 02:13 PM
Replies: 13
Views: 1,316
Posted By getrdunn

The flow ratio is decent for GM heads. I...

The flow ratio is decent for GM heads. I remember GM heads always liked a bigger split (10-12 deg + -) due to the poor exh etc. If you have a good reliable package I’d call it a day unless you go...
Showing results 1 to 25 of 176
 
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