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Search: Posts Made By: JaniH
Showing results 1 to 25 of 500
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Forum: General Q & A
03-23-2026, 09:44 AM
Replies: 1
Views: 204
Posted By JaniH

I am in The same situation, i also need custom...

I am in The same situation, i also need custom tails For My cmi long tube headers, 31"AVG primary lenght. All The cmi/stelling tails and collectors has huge id, 3.75"-4" Even with dry tails, why?...
Forum: General Q & A
03-16-2026, 04:26 PM
Replies: 16
Views: 1,002
Posted By JaniH

I don't have a photo od O2 bungs. But the headers...

I don't have a photo od O2 bungs. But the headers are CMIs and the bungs are in the collectors and straight out the side, in the standard location for boats. One in each collector.[/QUOTE]
You Mean...
Forum: General Q & A
03-12-2026, 04:00 AM
Replies: 16
Views: 1,002
Posted By JaniH

Your tail pipe Angles/style looks exactly what I...

Your tail pipe Angles/style looks exactly what I am doing right now, except mine IS going to Be with 3.5" innner Pipe and 4" outer. Do you Have a picture of 02 sensor bungs location?
Forum: General Q & A
03-07-2026, 12:24 PM
Replies: 10
Views: 599
Posted By JaniH

Just advance IT 6dg and Run it. What kind of...

Just advance IT 6dg and Run it. What kind of exhaust? GM lifters Are good with mild springs, 150/400lbs. i used gm lifters on My Old Combo, 230/236 @050 cam
Forum: General Q & A
03-07-2026, 06:05 AM
Replies: 135
Views: 25,931
Posted By JaniH

Handy 👌

Handy 👌
Forum: General Q & A
03-06-2026, 02:16 PM
Replies: 10
Views: 599
Posted By JaniH

Crane 731 ...

Crane 731
https://cimg4.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/900x2000/screenshot_2026_03_06_22_13_34_89_40deb401b9ffe8e1df2f1cc5ba480b12_7b7a1a87f195b4e613d88cced519425c0ebb541d.jpg
Forum: General Q & A
03-06-2026, 02:07 PM
Replies: 10
Views: 599
Posted By JaniH

In My opinnion IT might Be fine If you advance IT...

In My opinnion IT might Be fine If you advance IT 6 degrees, 104icl. Exhaust valve closing IS then Similar compared to Crane 731....
Forum: General Q & A
03-06-2026, 11:52 AM
Replies: 10
Views: 599
Posted By JaniH

What IS The exh Valve closing point with factory...

What IS The exh Valve closing point with factory icl?
Forum: General Q & A
03-06-2026, 05:01 AM
Replies: 135
Views: 25,931
Posted By JaniH

3.5" v-band flange Mock up. ...

3.5" v-band flange Mock up.
https://cimg2.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/1500x2000/img20260306100355_5381ba7e440a00908fd438430c33440a38a8cf8f.jpg...
Forum: Do It Yourself, Boating on a Budget
03-01-2026, 12:01 PM
Replies: 7
Views: 660
Posted By JaniH

I made The main cap like that to My engine, might...

I made The main cap like that to My engine, might do The pump For next season. Good video?
Forum: Drives and Lower Units
02-27-2026, 01:43 AM
Replies: 14
Views: 1,457
Posted By JaniH

I have CAD/dxf filee, for large cav plate used...

I have CAD/dxf filee, for large cav plate used with -2 sportmaster. Just bend The sides after IT IS Cut. Works like at charm, prop shaft 3.7" Below bottom on My 26ft stinger....
Forum: General Q & A
02-21-2026, 07:27 AM
Replies: 135
Views: 25,931
Posted By JaniH

AVG primary lenght 32", The shortest IS 30" and...

AVG primary lenght 32", The shortest IS 30" and 34" The longest. Should Be guite nice For 6000rpm 509cid. Going to build 19" long custom tails, 3.4" ID...
Forum: Swap Shop
02-20-2026, 12:45 PM
Replies: 18
Views: 1,172
Posted By JaniH

Are these For the older or new style AFR heads

Are these For the older or new style AFR heads
Forum: General Q & A
02-19-2026, 01:41 AM
Replies: 11
Views: 895
Posted By JaniH

I saw this video few years ago, and Have been...

I saw this video few years ago, and Have been doing IT like this since. Much less chance For error.
Forum: General Q & A
02-13-2026, 01:18 PM
Replies: 135
Views: 25,931
Posted By JaniH

Yes, down turn IS outside right after The...

Yes, down turn IS outside right after The transom.there IS not so much spacer For The down turn because of The stinger esim platform....
Forum: General Q & A
02-13-2026, 07:12 AM
Replies: 135
Views: 25,931
Posted By JaniH

Here IS link For different collector shapes. ...

Here IS link For different collector shapes.
https://burnsstainless.com/blogs/articles-1/merge-collectors?srsltid=AfmBOoqipEY0lW50AE4mkdP6L_mSL5NEn6WJqzkmxWiB7hvfWslzUW2k
Forum: General Q & A
02-13-2026, 07:09 AM
Replies: 135
Views: 25,931
Posted By JaniH

Dry to transom with 4.5" downturns. Not sure how...

Dry to transom with 4.5" downturns. Not sure how and where exactly to enter The Water. I Would really like to hear some opinnions how to do IT. Also The collector on those cmis IS stupid large,...
Forum: General Q & A
02-11-2026, 08:14 AM
Replies: 135
Views: 25,931
Posted By JaniH

Going to upgrade My exhaust from stainless marine...

Going to upgrade My exhaust from stainless marine manifolds to a CMI headers, 1.7/8" primary id/ full lenght primary tubes. I am building custom taill pipes and The question IS what Would Be The...
Forum: General Q & A
02-11-2026, 06:28 AM
Replies: 33
Views: 2,676
Posted By JaniH

Oops, wrong thread.

Oops, wrong thread.
Forum: Swap Shop
01-18-2026, 12:59 AM
Replies: 13
Views: 1,037
Posted By JaniH

Ill take The actuators!

Ill take The actuators!
Forum: Swap Shop
01-16-2026, 03:41 PM
Replies: 13
Views: 1,037
Posted By JaniH

Wait, Are these For bravo?

Wait, Are these For bravo?
Forum: Swap Shop
01-16-2026, 01:10 PM
Replies: 13
Views: 1,037
Posted By JaniH

Ill take The mech trim actuators, If those Are on...

Ill take The mech trim actuators, If those Are on working condition.
Forum: General Q & A
01-09-2026, 02:44 PM
Replies: 11
Views: 835
Posted By JaniH

Unfortunately these stelling whites Are For TRS...

Unfortunately these stelling whites Are For TRS drive boats and The collector IS too far Back. How about The primary tube Inside diameter? IS 1.7/8" primary tube too small For 670hp BBC, looking at...
Forum: General Q & A
01-06-2026, 02:19 PM
Replies: 33
Views: 2,676
Posted By JaniH

They Make XR Gears From better material vs merc...

They Make XR Gears From better material vs merc junk. Lower Gears Are on The market allready. Not sure about upper Gears. They where searching For people For The upper gear test program while ago.
Forum: General Q & A
01-06-2026, 10:31 AM
Replies: 33
Views: 2,676
Posted By JaniH

Quench IS very tight ,0.036"-0.037". My Pistons...

Quench IS very tight ,0.036"-0.037". My Pistons now Have 6.5cc solid dome, so Domes Have to go If lowering The compression IS needed. I always target For 0.039" quench, But this one came really tight.
Showing results 1 to 25 of 500
 
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