Exhaust cam gears with 3° retard

I installed mine last weekend. Have not gone thru a full tank yet so it'll be a while. I just did the gear install and nothing else since I did the spark plugs earlier this year.
 
084RUNNAH said:
I installed mine last weekend. Have not gone thru a full tank yet so it'll be a while. I just did the gear install and nothing else since I did the spark plugs earlier this year.
Click to expand...
Maybe yours will be a fairer account of just the gear install. Mine is hard to gauge exactly because of the spacer. But it drives so much better!

Sent from my SM-G986U using Tapatalk
 
[MENTION=109843]montijo505[/MENTION] can you post a link to the spacer you used? I might as well get one as well and just do it once. Also did the spacer come with a gasket as well or should I order the plenum gasket in addition?

Can you also post a link to the Mercedes engine tool you talked about as well?

I don’t recall seeing that info but wouldn’t surprise me if I overlooked it.
 
Last edited:
Follow the original link to Tacoma world. He is doing them in batches of 10. The first page should have the current list.

Sent from my SM-G986U using Tapatalk
 
Well I got these on and I have to say i'm a believer.

Like [MENTION=109843]montijo505[/MENTION] said the engine feels happier and a lot peppier if that's a word.

Looking forward to getting some data before the y pipe.
 
miller507 said:
Well I got these on and I have to say i'm a believer.

Like [MENTION=109843]montijo505[/MENTION] said the engine feels happier and a lot peppier if that's a word.

Looking forward to getting some data before the y pipe.
Click to expand...
It definitely drives better, I highly recommend these to anyone with the V6.

Sent from my SM-G986U using Tapatalk
 
I just made an account here to monitor this thread and answer any questions people might have about these. I was taken back when I saw this has hit 4 pages already and I didn't even know about it.

I am the guy that is making/selling them over on TacomaWorld

Currently I am in fact doing these in batches of 10 or more until there is no longer demand for them. I've sold several hundred sets so far and try very hard to make sure I am available for people during install that might have questions or concerns. As seen over on the TW sale page- There are no bad reviews (at the time of writing this) and I can honestly say these are one of the best bangs for the $$

I started making these because they were kind of a mystery/black magic item that was sold by APR back in the day and then they were only sold by URD with the UCON tuning system (~$1400)
Then a bunch of us got together and hired a machine shop to make these but they screwed us and made them all incorrectly (no money back either). I stepped up to the plate thinking I would only be making about 40 sets of these back in the day. I have all the machining tools to cut a very precise keyway so made a jig and got to work. The accuracy to which I am cutting these is down to 0.001" of depth of cut and 0.1 MOA it terms of matching the 3° angle repeatedly.
In other words this is more variation in the gear itself than there is in the re-machining of the gear.

The original 40 sets were such a success that I decided to continue production. Who doesn't want more useable power with better gas mileage after all.

Happy to answer any and all questions,
Sorry for the rambling.
-Kel
 
Mightytacoman said:
I just made an account here to monitor this thread and answer any questions people might have about these. I was taken back when I saw this has hit 4 pages already and I didn't even know about it.



I am the guy that is making/selling them over on TacomaWorld



Currently I am in fact doing these in batches of 10 or more until there is no longer demand for them. I've sold several hundred sets so far and try very hard to make sure I am available for people during install that might have questions or concerns. As seen over on the TW sale page- There are no bad reviews (at the time of writing this) and I can honestly say these are one of the best bangs for the $$



I started making these because they were kind of a mystery/black magic item that was sold by APR back in the day and then they were only sold by URD with the UCON tuning system (~$1400)

Then a bunch of us got together and hired a machine shop to make these but they screwed us and made them all incorrectly (no money back either). I stepped up to the plate thinking I would only be making about 40 sets of these back in the day. I have all the machining tools to cut a very precise keyway so made a jig and got to work. The accuracy to which I am cutting these is down to 0.001" of depth of cut and 0.1 MOA it terms of matching the 3° angle repeatedly.

In other words this is more variation in the gear itself than there is in the re-machining of the gear.



The original 40 sets were such a success that I decided to continue production. Who doesn't want more useable power with better gas mileage after all.



Happy to answer any and all questions,

Sorry for the rambling.

-Kel
Click to expand...
Welcome to T4R!

Sent from my SM-G986U using Tapatalk
 
Best to contact me on TW to get on the list. Multiple lists could get a little hectic so having it all consolidated to one list in one location will work best for me
 
So far, so good. Cam bolts are damn tight. Engine is smoother idling, runs better all around. Will have more to report after sunday
 
pauldub said:
That is not possible. To change the RPM at a given speed, you have to change gears in the drivetrain (transmission or differential).
Click to expand...

So I noticed a decrease in rpm at a given speed as well with this mod. So I'm curious as to why. Could it be the TC staying locked longer with the increase in torque? And would that result in lower rpm at a given speed. Not complaining about it, I'm just curious
 
81runner said:
So I noticed a decrease in rpm at a given speed as well with this mod. So I'm curious as to why. Could it be the TC staying locked longer with the increase in torque? And would that result in lower rpm at a given speed. Not complaining about it, I'm just curious
Click to expand...

I would say it could have an affect on shifting if torque increased enough near a shift point but not on road speed at rpm, that's gearing.
 
rdruss said:
I would say it could have an affect on shifting if torque increased enough near a shift point but not on road speed at rpm, that's gearing.
Click to expand...

So then if nothing changed in the gearing of the drive train, how does this mod result in a decrease in rpm at a given speed? I'm not the only one who noticed this. OP of this thread made mention, and several others on TW. So I'm curious.
 
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