Comptech Cam Placement

[Honcho]

Comptech lists the following for intake and exhaust:

Intake: 90377 / 90378
Exhaust: 90379 / 90380

Does it matter which head they go on? I was going to do 377/379 front head and 378/380 rear head.

 

[Old Guy]

Comptech lists the following for intake and exhaust:

Intake: 90377 / 90378
Exhaust: 90379 / 90380

Does it matter which head they go on? I was going to do 377/379 front head and 378/380 rear head.

Honda lists separate part numbers for the front and back intake and exhaust cams, so four different pieces. That suggests that location matters. I don't have my shop manual handy so cannot advise on the presence of identifying marks. After you clean up your C30, you may have to check the OEM cams for identifying features such as shoulders / offsets which may help you differentiate front from back.

Or, if you are inclined to gamble, in a purely random selection of the cams (but, not mixing int and exh) you have a 25% chance of getting everything correct.

 

[Honcho]

Honda lists separate part numbers for the front and back intake and exhaust cams, so four different pieces. That suggests that location matters. I don't have my shop manual handy so cannot advise on the presence of identifying marks. After you clean up your C30, you may have to check the OEM cams for identifying features such as shoulders / offsets which may help you differentiate front from back.

Or, if you are inclined to gamble, in a purely random selection of the cams (but, not mixing int and exh) you have a 25% chance of getting everything correct.

Not going to gamble lol. I'm going to ask Shad, but thought someone on here might know.

 

[docjohn]

I thought that would be the benefit of leaving them in the heads...you could tell which one goes where....

 

[Honcho]

I thought that would be the benefit of leaving them in the heads...you could tell which one goes where....

Was moving too fast- got excited!

 

[docjohn]

LOL...................I love your enthusiasm....and wow to how you are learning the firmware of the ecu/tuning....

 

[Kaz-kzukNA1]

If you were referring to the camshaft, then you would notice the difference.
The front bank ones are much longer than the rear ones.

Kaz

 

[RYU]

When all else fails

 

[Honcho]

LOL...................I love your enthusiasm....and wow to how you are learning the firmware of the ecu/tuning....

We have it pretty much done- with datalogging. Should be able to fully tune it for the cams, RDX inj and big bore throttle/intake manifold. I'm targeting 300 whp. Would be thrilled with 310, but would rather have less peak power and a nice fat area under the torque curve....

If you were referring to the camshaft, then you would notice the difference.
The front bank ones are much longer than the rear ones.

Kaz

Thanks, Kaz. That makes it easy.

When all else fails

Just gotta trim yer cams down ther good buddy!

 

[RYU]

We've all gotta trim down there once in a while

 

[docjohn]

We've all gotta trim down there once in a while

unless you wanna party like its 1970....:biggrin: