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Rb26 Inlet Manifold And Phenolic Gaskets *results*

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STATUS Grand Master

STATUS

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Posted (edited)

Has anyone played with this on the 26? i have some nice phenolic gaskets to insulate the inlet plenum and will do a few runs on the dyno and the track and log the results for those who may be interested in this cheap power upgrade. I have always used them on my SR's but they required much more than just the gaskets as the throttle body and aac valve all needed the water passages bypassed aswell, The GTR doesnt.

products_gaskets.jpg

official blurb if you dont know what phenolic gaskets are; http://www.gizzmoelectronics.com/product_gasket.htm

Edited by URAS
  • 2 weeks later...
STATUS Grand Master

STATUS

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given the air speed of WOT into the manifold, I don't think a hell of a lot of heat would transfer off the plenum to the injested air charge...

you would be suprised, hondas get fairly large gains in regards to total power percentages. Dsport did some testing a while back.

in GTR i wont know til sat till i put it on CREATDS dyno, i dont expect much but i expect it will be 90 dollars well spent in reducing inlet charge over a period of time.

gotRICE? Veteran

gotRICE?

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you would be suprised, hondas get fairly large gains in regards to total power percentages. Dsport did some testing a while back.

in GTR i wont know til sat till i put it on CREATDS dyno, i dont expect much but i expect it will be 90 dollars well spent in reducing inlet charge over a period of time.

Although on your average honda, Bar the K-Series and F20C, the Intake manifold sits on the back of the motor, and has none, to sweet f**k all airflow around it. Its kinda getting all the heat of the engine bay thrown at it.

I put a HONDATA gasket on my ITR, and i believe the only difference it made was less available funds on my card, and a few cuts and scratches getting the bitch in there :thumbsup:

STATUS Grand Master

STATUS

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Although on your average honda, Bar the K-Series and F20C, the Intake manifold sits on the back of the motor, and has none, to sweet f**k all airflow around it. Its kinda getting all the heat of the engine bay thrown at it.

I put a HONDATA gasket on my ITR, and i believe the only difference it made was less available funds on my card, and a few cuts and scratches getting the bitch in there :)

did you re-route the other heat sources fron the inlet manifold.... like water etc... i have seen plenty of excellent honda data, but many do not understand the preocesses and only fit the gasket.

heller44 Mentor

heller44

Posted
Posted

On the topic of phenolic spacers, when the 5.0 was new to the mustang, one of the popular mods was a phenolic spacer between the upper and lower halves of the intake manifold. I remember seeing test results showing a definate improvement.

James.

gotRICE? Veteran

gotRICE?

Posted
Posted
did you re-route the other heat sources fron the inlet manifold.... like water etc... i have seen plenty of excellent honda data, but many do not understand the preocesses and only fit the gasket.

That "mod" is already done on Integra Type R's from factory. The only one you need to re-route is the cold start line that warms up the throttle body. So thats more than likely why the ITR doesnt respond as well as other Hondas.

STATUS Grand Master

STATUS

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heres the latest dyno i will post up a table later comparing the two datalogs of inlet temp and timing.

with the new gaskets inlet temps were reduced by a substantial amount, to the point that the turbo outlet pipes would were so hot they would scald and the plenum was COOL to touch after 21 runs......... if you dont believe me check our the run number on the dyno sheet :P

The cooler charge allowed us to dial in another 3-5 degrees of peak timing throughout the peak torque and top end IGN map areas.

post-34927-1180350300_thumb.jpg

Edited by URAS
Adriano Grand Master

Adriano

Posted
Posted
On the topic of phenolic spacers, when the 5.0 was new to the mustang, one of the popular mods was a phenolic spacer between the upper and lower halves of the intake manifold. I remember seeing test results showing a definate improvement.

James.

I believe in this case, the gains were mostly due to the "thick"gasket(up to 5cm thick) increasing plenum volume and reducing flow discrepencies between the cylinders, and or increasing runner length

  • 2 years later...
noone Experienced

noone

Posted
Posted

Any advice on actual fitting these gaskets assume they would need some gasket sealant etc.

Whst sorta torque values standard?

also as they are alot thicker than standard any issues with the stud length being too short??

any advice appreciated

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