may seem like a totally lame question, but I'd hate to blow up my engine at the dyno thinking that one mark on the cam gear equals one degree of advance/retard when in reality it's not. Could someone with these cam gears PLEASE explain to me how to set them properly. My engine is a fairly built Toda affair (Spec B's, high compression pistons, port&polished head, knife-edged cranked and totally blueprinted and balanced bottom end, Spoon header, Skunk2 intake manifold, 65mm TB, Hondata ecu, etc., etc.) and I'm being told that I should be trying +3 or +4 on the intake cam and +1 on the exhaust cam. Any help with accurately setting these cam gears is greatly appreciated! Thanks

Dave
EG B18C hybrid

 

don't the instructions tell how to read them.
you can download their instructions off of todas page

 

Waffles, yeah I downloaded the instructions but to be honest I can't make much sense of them. The translation from Japanese to English has definitely caused some loss in the coherency of the text, or maybe I'm just brain dead

 

i read them once myself----kinda confusing. but i don't have them, but i plan on getting some soon. sorry i can't help!

 

Each mark is 2 degrees at the crank, for a max of 5 degrees. The new gears only move 2.5 marks...


Jason

 

All you have to do is look at the pictures in the instructions. The words won't tell you anything extra.


Look at the picture of the gear above. Okay, now notice the CENTER dot on the outer ring lined up with the inner dot? That is 110 degrees or "0" degrees. Now, if you turn the cam left, or the outer ring towards the firewall to where the first line on the center section meets up with the first line on the outer ring (on the left side of the center dot), that is 1 degree advanced. If you want 2 degrees advanced, you have to line up the second line on the outer ring with the second line on the center section. These gears have a maximum adjustment of <U>+</U> 15 degrees. If you line up the 5th line on the outer ring to the line the 5th dot/line on the center section, that is 5 degrees. Hope this helps. Best of luck.


[Modified by dplatt, 9:00 AM 11/8/2001]


[Modified by dplatt, 10:05 AM 11/9/2001]


[Modified by dplatt, 10:18 AM 11/9/2001]

 

Try these:
Page 1 http://www.todaracing.com/camone.jpg
Page 2 http://www.todaracing.com/camtwo.jpg

 

omg, I want those. Will they work on an LS?

 

dplatt, thanks a bunch that really helps! I think I may just avoid blowing up my engine now

 

Yes, they will work on any B-series motor. They cost near $300 for a pair. But the best cam gear in my opinion. Made out of 7075 aluminum. Strong, and light. They look cool too .

 

PLEASE NOTE THAT I MADE A TYPO/MISTAKE, and I corrected myself above. Sorry, to advace the gears you need to turn the CAM or center section of the gear left. Please accept my apologies. Thanks.

 

no worries, I understand which way to turn the cam gear to advance/retard the timing on the intake or exhaust side (the Toda instructions are helpful in that regard), I just wasn't clear on how to read the cam gears so that I get the correct amount of adjustment. Your earlier post helped clear up my confusion, so thanks!

Dave


[Modified by Ddddave, 11:25 AM 11/9/2001]

 

Also, it's important to note that the marks on the cam gear are actually in 1 degree crank angle measurements, not cam angle. The cam angle is .5. So let's say that you have an AEM cam gear and set it to 1 degree advanced, you are actually at 2 degree crank advanced. On the Todas, if you line up the first mark, that is 1 degree crank, and .5 degree cam angle. Essentially, if you want to set your cam gear to +1, you will have to line up the 2nd mark on the center ring to the second mark on the outer ring. That's why the Toda gears are so safe, they have a maximum of 5 degree CAM angle adjustment. I hope this makes sense. Best of luck. Sorry for the confusion.




[Modified by dplatt, 11:49 AM 11/9/2001]