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kelford stg1 vs. 06-08 Tsx cams

28353 Views 54 Replies 22 Participants Last post by  Mamao
I was wondering if someone could help chime in and compare the Kelford stg1 cams vs. 06-08 TSX camshafts.
I am leaning towards the kelford stg1. upgrading my valve train is NOT an option.

Thanx 8th Gen
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I wish they would have done the RRC then cams (or vice-versa) to compare gains with each mod. From the last "test" of the Kelford Cams (albeit stage 2) the gains were "bad" (they never posted the results). So, I would say take these gains with a grain of salt.

Best regards,

The test mule in Import Tuner was my 2009 Civic and we did test the RRC manifold by itself. I have not read the article yet, but after bolting on the the manifold the car had initially lost significant power. After it was tuned we saw a gain of about 15hp. The car topped out at around 225hp with the manifold (DCRH, DC 65mm exhaust, K&N Drop in filter, Hondata Flashpro, and Honda intake manifold gasket). The next dyno session after the stage 1 cams were installed we finalized it at 243.7hp considering it was around 85 degrees or so that day. So it was about a 19hp gain just off cams after the tune was complete with the manifold. There was definitely more power to be made, but it would have required more rev, as you can see from the dyno sheet below, it was still making power with no dropping off whatsoever until we finally let off the gas, but unfortunately we were still on stock valve train. All testing done on 91 pump gas.

We chose to install the RRC manifold first because most people out there would most likely choose to install an intake manifold before they install cams. We will be doing some further testing on a 5.06 FD trans, throttle body spacer + Maxbore 65mm throttle body...hopefully with the shorter gear ratio we can shift the power band slightly over more to allow more room for more power at max rev.

All the products involved in this build can be purchased through us at Evasive Motorsports.


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i am surprised to see how much valvetrain noise there is with those drop in cams
Valve train noise is to a minimum, you can barely even tell there are cams in there.....

Nice gains! I assume the baseline is IHE untuned? Also, do you have any runs of the Kelford Stg1s without RRC? Thanks for your testing and expanding this community's options.

Best regards,

Please note I'm doing my best to go off memory, the results were from April.
1) Baseline was IHE, with Hondata Flash Pro... 210hp
2) Installing RRC then baseline... 185hp
3) Erick had to tune for the lost HP and easily found it, a 40hp turn around, so you cannot just simply bolt on the manifold and expect any type of gains... 225hp
4) Last step was to tune the cams. What we found was the cams like to be revved. For every 100 RPM increments the engine and cams were liking it.
8500 RPM 239
8600 RPM 242
8700 RPM 243.7
Unfortunately we were limited to rev due to the motor pretty much being stock.

Like mentioned in my previous post it made more sense to do the tuning with the manifold first. It would have been an unfair advantage to test the cams first and then the manifold. The manifold may have yielded more than average gains to a motor that has stock cams.

I will keep everyone posted when I do go back for more tuning with a few new simple bolt-ons including a slightly larger exhaust. Hopefully we can find some more torque some where in the motor.

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Evasive, is there any specfic reason you haven't stuck an aftermarket intake on there yet? Also, would a ported RBC be better than the RRC? I have a spare RBC I've been wanting to do something with and these cams look like what will come right after the manifold.
Originally there was a hot air intake on there, which may have yielded a little more torque and maybe a little more hp, but of course that is with the hood open with the intake receiving both a mixture of hot and fresh air. But it was hot as hell that week and we wanted to simulate the tuning closer to actually driving conditions. Although it maybe have been less volume in air, it wasn't hot air and would have more consistency in the test besides your avg heat soak from dynoing. I'm trying to max out the stock intake system to see what it can do first and later if I'm bored I will test it my set up with a CAI.
I have yet to see a ported RBC manifold make more power than an RRC. But that is just from what I have seen in my experience.

im not saying it didnt show that. just makes me think something wasnt right. i saw where one guy gained around 6 or 7 with stock ecu. but this one loses 25 with a tune for I/H/E if im not mistaken
I can assure you that the car lost power on the RRC manifold without tuning. The car is my daily driver so I know there was a power loss but didn't think it was that significant until we actually put the car back onto the dyno. The car has only been dyno'd at Erick's Racing and no where else so there would not be any discrepancies for the article in regards to the parts, HP, TQ, or tuning. I was there from beginning to end on the parts being installed at Autowave on the cams, I installed the intake manifold, and Erick doing the dyno tuning and there were no hiccups in the process... so everything went smooth so I can assure you that everything was right as the final numbers will indicate.
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