Toyota HD-FTE Split Run Exhaust Manoffold

Submitted: Friday, Mar 12, 2021 at 12:24
ThreadID: 141232 Views:4621 Replies:2 FollowUps:5
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As alternative to the OEM manifold I found Eclipse Split Run manifold. There is some information on their website, but I am interested in hearing from actual users. I haven't found any reviews on the web so far. The split flow manifold supposedly increases low rpm torque which may be of value towing.

as a alternive to s
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Reply By: Member - John - Friday, Mar 12, 2021 at 13:12

Friday, Mar 12, 2021 at 13:12
Oops, looks like you forgot the pics..........
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Follow Up By: Nomadic Navara - Friday, Mar 12, 2021 at 18:14

Friday, Mar 12, 2021 at 18:14
It was the link to the web site for the device he forgot, not the picture.
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Reply By: RMD - Friday, Mar 12, 2021 at 17:23

Friday, Mar 12, 2021 at 17:23
Looked at the site and see the manifold is made to direct one half of cylinder output through a Half circle port to turbo and the other half cylinder output to the other side Half circle port immediately before entering the turbo. The only thing it would do is increase the velocity of each stream of hot gasses entering the turbo, no increase in volume though, instead of premixing with exhaust from the other end of the engine at the junction before the turbo entry. Less swirl and more direct I suppose. The question is, does the half/half design actually reduce the ease of gas exit from the cylinders at higher flows when full power gas flows is asked for? Hardly worth money unless you are experiencing less performance down low. Maybe have the valve clearances on the buckets looked at first as they have to be correct for an benefit of any mod or normal use to happen correctly. Remember, Toyota NEVER check valve clearances unless a power problem is found to be real. Not uncommon for Toyota engine to have 250K or much more and NEVER had valves checked.
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Follow Up By: axle - Saturday, Mar 13, 2021 at 12:26

Saturday, Mar 13, 2021 at 12:26
Hi RMD, I think the problem with toyota workshops is the fact that not many can do a ACCURATE shim adjustment and just go with the " its ok thing". and its so important with the later six cyl diesels.

The v8 petrol 4.7l is a nightmare to do also, under bucket shims with them, i know i had one ... lol

The toyo serviceman TOLD me they never have to touch them???


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Follow Up By: RMD - Saturday, Mar 13, 2021 at 14:21

Saturday, Mar 13, 2021 at 14:21
Can most mechanics in todays world "actually read a feeler gauge" and decide the appropriate reduction or increase in shim thickness to make it correct? Toyota mechanics believe they never alter because they have never have seen inside one. Toyota Trained Technicians of course. I know my Local Toyota mob have NO idea how brakes work, personal confrontational experience had with that one. Understanding the whizzy bits inside an engine must be difficult for them.
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Follow Up By: Member - abqaiq - Tuesday, Mar 16, 2021 at 11:51

Tuesday, Mar 16, 2021 at 11:51
Thanks Guys, just I thought. Not beneficial without a special $$$$ double inlet turbo. I have had the valve clearances checked/reset by an independent skilled mechanic while the diesel specialist changed out the injectors. I have to agree many dealer mechanics are poor. I do most of my vehicle work myself or at a local shop where i can watch/participate.
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Follow Up By: RMD - Tuesday, Mar 16, 2021 at 16:00

Tuesday, Mar 16, 2021 at 16:00
That is good you can do work like that, many places won't allow anyone to be there, and if they did you would have to complete the 5 days course on correct fitment of overalls and how to safely do them up and present the ticket for verification.
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