Just taking a poll. What are you cam gears set at with your Toda "B" cams?

My cam gears are tuned for the GSR manifold. I now have a Skunk2 manifold (plus some other goodies) ... and would like to adjust the cam gears w/out going to a dyno.

Yes, eventually I will hit up a dyno ... just not yet.

 

i would leave them at zero until you can get to a dyno..you wont know if the setting is helping or hampering your performance...

 

I was running +3 intake and +1 exhaust (195 whp prior to recently having my engine rebuilt), but I haven't had a chance to retune everthing since the rebuild so I can't say for sure this is where I'll end up again. The cams are back at zero for the break-in period. I've heard from several experienced tuners that +4 IN and +1 EX works well for them on most built Toda B engines, but I won't have a chance to test this set-up for another month or so.

Best of luck with your tuning,
Dave

 

Well, definitely take EP's advice and do your tuning on the dyno...

But I've got +2 in, 0 exh as my settings right now.

I'll definitely change this on the dyno soon.....

I've heard that only +1 or so on the exhaust will do anything, whereas advancing the intake +2 at a time until you start to lose power is a good option... I'll try to locate a file I had on tuning from jeff @ importreview...

 

On a ITR motor w/ Endyn 12:1 pistons and a Mugen header.. stock ECU w/ 270cc injectors, best setting was +5, +5

With 310cc injectors, Skunk2 ECU added... best setting was +7, -2

Weird cams. They respond to some things, and then they don't.

 

ttt

I'm interested still in more responses from this topic.
I'd like to know others settings and their results.

 

.....oh yeah to add another variable to the equation:

If your head is milled or you have head work this may affect the settings as well...

The only people I've seen benefit from advancing the exh cam had some headwork and this effectively brought it back to +1 or 0... Most have a setting of +1, 0, or -1 on their exhaust cam, and +4 or more on the intake cam with spec b's in a mostly stock motor and stock compression... From what I've seen.

 

I run +4 in +1 ex

Using a milled head or thin head gasket will advance your ignition timing and affect cam timing as well. Thus you need a dyno to really find the sweet spot.

 

Advance the **** out of the intake gear and play with the exh. till the power is where you want it.

 

most of the times after I degree the cams, I get the +7-10 degree advance range for Intake cam and retard exhaust about 1-4 degrees.

obviously by degrees I mean each index mark, so its twice that at the crank for aem, skunk2, unorthodox gears and 1/2 of each mark for JUN gears, etc.

On the Toda gears it works differently, so use the 105 degree intake setting and 95 exhaust.

Greg

 

My current settings are:
Intake: +3.5 crank
Exhaust: +1.0 crank

These worked best for the flat torque curve that I wanted.
Austin