Rear Gears - Page 2
 

Rear Gears

Started by MCI-RICK, June 25, 2009, 05:13:22 AM

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MCI-RICK

Don,

I travel frequently on the east coast ( New Jersey to Florida & in between).  I'd like to know more about your 350hp 6V92.  I'll give you a call a bit later.  Thanks.

Rick 
Aim high but look out below

RTS/Daytona

Don

Something just not right here --

we have the same rear ratios (4.10) - we both do 70 mph at 2100 rpms
BUT my shift points are:
1->2 = 17 mph
2->3 = 33 mph
3 lockup = 45 mph

Chris has a 5.13 and his shift points are 13 / 26 / 34 MPH  -- exactly  4.10/5.13 times  lower than mine - just like you would expect

Yes - Chris and I have V731 - but that just means electronic solenoid shifting

Somethings not right - 2350 rpm to get from 2 to third !!!! --could it be your Modulator or Governor ???

I can't get anything over 2150-2200 RPMs out of my DDEC

Pete RTS/Daytona

If you ain't part of the solution, then you're part of the problem.

donnreeves

Pete, those numbers are correct,but keep in mind my engine is mechanical and I have a V-730 which is also mechanical. when I first put it togeather it would not shift into 3rd because the governor was set at 2100 no load. This engine had a V-731 behind it when I bought it. I bumped the no load up to 2450 and it shifted to 3rd on the first test drive and has been fine ever since. Geoff's RTS is the same way.  Donn

TexasBorderDude

Quote from: MCI-RICK on June 27, 2009, 03:15:23 PM
Luvrbus,

Quote from: JackConrad on June 27, 2009, 10:02:28 AM
Quote from: luvrbus on June 27, 2009, 08:42:19 AM
Jack, the alternator does not need a R terminal we just went through this on Texas Border Dudes Eagle his didn't have a R terminal but the guy at Prescison Speed helped work it out.       good luck

Thanks for the information, I jst learned something new.  How did ya'll connect to the alternator?

PLease, share info!

Rick


Jack/Rick
Here's a pic of my alternator.  Can't find any markings but I think it's a delco that's been rebuilt.  Don at Precision in Phoenix had me measure the drive and driven pulleys and he made a calculation to adjust by a factor of 11.33 which I programmed in.  He suggested I use a volt meter which could read the frequencies (hz meter?) which I do not have.  So I just connected to the terminal shown with the yellow insulator when I found voltage there.  It works great... like alternator driven tachs it surges and I'd rather have the signal generator off my cam, but that's just more bucks!  It is invaluable to down shift my 8V71N with a HT740 at 1,500 rpm and upshift at 2,100 rpm.  (I had my governor set to 2,500 rpm (no load).  I can get a jump on the hills and can manage some in 3rd that before would have taken 2nd.

Best,

dg
A curmudgeon's reputation for malevolence is undeserved. They're neither warped nor evil at heart. They don't hate mankind, just mankind's absurdities. They're just as sensitive and soft-hearted as the next guy, but they hide their vulnerability beneath a crust of misanthropy.