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i bought a set of basset on ebay to put on my 24 ft glastron with a 496 stroker whit a close engine compartment, they are water injected but not water jacket, and they are supose to be dry under 2000 rpm as far as i know. The problem is that i have about 30'' long of heavy duty rober exhaust hose to connect the headers to the tips that are above the swiming bord. the guy from the performance shop that dyno the engine said that they gonna melt right off, even at idle , i dont plan to let it idle for long period of time anyway, and he sait that the weep hole will leak fume in the compartment to, what do you guy's think?? is that true??
 

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BIg Big mistake. Injected headers must only be used in OPEN engine bays. Before you go out on the boat REMOVE the engine cover, or prepair for liftoff.
 

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You have to lose the cover. At idle though as long as the exhaust tips are submerged, there should be enough water in the rubber exhaust tubes to keep them cool.

You may want to fabricate a length of stainless tube to take up the majority of the length of rubber hose, and just use the rubber hose to join the stanless extensions to the tips and to the headers themselves.

If you want to keep the lid, you need a set of high performance manifolds(ie Imco's) or some Lightning Headers.
 

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X3. Remove engine cover. Bassett's thru transom headers have water inlet bungs in the collectors. Your engine discharge water should be entering the pipes through those bungs. With all the engine discharge water going through there it will keep your exhaust hose nice and cool at an idle.
 

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Discussion Starter #6
if weld shut the weep hole, and i rap them all up with the special fabric to keep the heat down, would it do it?? i'm desperate.. anybody got a set of water jacket headers for sale????
 

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X3. Remove engine cover. Bassett's thru transom headers have water inlet bungs in the collectors. Your engine discharge water should be entering the pipes through those bungs. With all the engine discharge water going through there it will keep your exhaust hose nice and cool at an idle.
Only if he has the JACKETED Tri-Y headers.

The standard headers are INJECTED, and, water in them @ idle is asking for reversion, water getting sucked into the cylinders.

Injected headers will get VERY HOT at idle, especially if idling for an extended time.
If the exhaust tips are under water at idle, the rubber hoses will be fine, but the rest of the boat is asking for a fire.

Ditch the hood, or go with JACKETED headers, and they will NOT be cheap.
Mine were $1200 USED ($1900 or so new). Stainless steel, add almost another Thousand $$.
 

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Although this would'nt have been my choice and I would recommend against it. If your going to try to run/use these headers in an uncovered/open engine bay and assuming they are water injected thru hull headers they should be plumbed with exit two water sources :#1 to supply water to the injection lines (via a T valve) on acceleration and #2 a "tail pipe" constant water source to keep the tail pipes cool . This (#2) can be accomplished by "splitting" your overboard dump water and regulating a small amount to the tailpipes ahead of the rubber hose connection. If by chance you have a camshaft with duration at *50 exceeding 240 or so you still run the risk of "water reversion" causing a littany of engine issues (water in oil). Do not weld up the "pee holes" there present to allow water drain at low rpm and after shut off. If you need a thru hull plumbing diagram call or email Tom

** If you run it without cooling to the Rubber hoses its only a matter of a very short time to burn up the rubber hoses , the ensueing fire would likely be extinguished by the sinking however
:)coffee (just pickin Glastron call if we can help )

This is the "hot" ticket ,can be used in covered or uncovered they dont get hot and they'll handle a lot of HP
 

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You will have to either go go with the cheapest method and remove your engine cover, or next cheapest, pick up a set of logs here or on Ebay, or get some imco manifolds or the most expensive, pick up a set of jacketed headers.

Cy
 

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Only if he has the JACKETED Tri-Y headers.

The standard headers are INJECTED, and, water in them @ idle is asking for reversion, water getting sucked into the cylinders.

Injected headers will get VERY HOT at idle, especially if idling for an extended time.
If the exhaust tips are under water at idle, the rubber hoses will be fine, but the rest of the boat is asking for a fire.

Ditch the hood, or go with JACKETED headers, and they will NOT be cheap.
Mine were $1200 USED ($1900 or so new). Stainless steel, add almost another Thousand $$.
Fwiw BGMAN is right(at least as far as my bassetts go) they are injected, plus dump water goes into the collectors. And yes the exaust hose will go south if you don't run water to the collectors. Don't ask me how I know.:)sphss
 

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Discussion Starter #11
ok, if i run my dump line at the end of the headers to cool the rubber hose down, at that point can i run it with the hatch close or there is still a fire problem, is there a lot of fume comming out of those pee hole?
 

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Running that type of header under an engine compartment is not a smart choice, you are asking for trouble.:)hand
 

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in simple terms, you CANNOT run those headers in an enclosed hatch safely. all the tips mentioned were to use them in an open engine compartment, not a closed. either remove the hatch, or get differant exhaust. its that simple. lives may depend on it.
 

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Coming from someone who has blown off an engine hatch, I DO NOT recomend using these headers under the hatch. Although My explosion was caused by gas vapors. Show us some pix of your set up and why you are so against taking off your engine cover if you are so desperate to run your boat.

Cy
 

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i bought a set of basset on ebay to put on my 24 ft glastron with a 496 stroker whit a close engine compartment, they are water injected but not water jacket, and they are supose to be dry under 2000 rpm as far as i know. The problem is that i have about 30'' long of heavy duty rober exhaust hose to connect the headers to the tips that are above the swiming bord. the guy from the performance shop that dyno the engine said that they gonna melt right off, even at idle , i dont plan to let it idle for long period of time anyway, and he sait that the weep hole will leak fume in the compartment to, what do you guy's think?? is that true??
Not to be harsh but if you run those exhausts under hatch you will cause a fire and then sink. No if's and's or but's. You been warned. Not only is it illegal, it is just [email protected]&king dangerous to you and everyone around you. The money you saved on those headers will be cheap in comparison to the damage you WILL cause.
 

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the ensueing fire would likely be extinguished by the sinking however
Now thats a quote worthy of a sig line...


On a serious note..
Glastron, i have no experience one way or the other but if these guys are saying "Hell No" then dont do it man..
 

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Not to be harsh but if you run those exhausts under hatch you will cause a fire and then sink. No if's and's or but's. You been warned. Not only is it illegal, it is just [email protected]&king dangerous to you and everyone around you. The money you saved on those headers will be cheap in comparison to the damage you WILL cause.

That about covers it.... Ditto :)

Next time be harsh it seems he has a hard head. ;)

S CP :D
 

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Discussion Starter #19
Tanks guy's, i really apreciate your help, you might have save somebody's live with those ''warning'' you gave me cuz i was about to put them in no matter what! I will go with a different setup for sure!!! by the way i have a set of bassett jet boat headers for sale...:D
 
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