|
|
|
|
05-23-2015, 09:54 PM
|
#1 |
|
VIP Member
Join Date: Oct 2013
Location: Gulf Breeze, FL
Posts: 1,651
Likes: 8
Liked 33 Times in 16 Posts
|
Re: Ford vs Chevy Build-up
Yes, took it to Buffalo Valley Friday nite. Got it running decent, but according to the recorder timing is maxing out at 30 degrees. Have not figured out yet how to bump it up with the controller.
I'll be back at BG in the morning...will not make the same mistake I did first round of the NitroPlate race. 
__________________
Rich Taylor I/SA - 321 |
|
|
|
05-26-2015, 08:31 PM
|
#2 |
|
Member
Join Date: Nov 2011
Posts: 264
Likes: 42
Liked 61 Times in 25 Posts
|
Re: Ford vs Chevy Build-up
How did it do?
|
|
|
|
|
05-26-2015, 08:38 PM
|
#3 |
|
VIP Member
Join Date: Oct 2013
Location: Gulf Breeze, FL
Posts: 1,651
Likes: 8
Liked 33 Times in 16 Posts
|
Re: Ford vs Chevy Build-up
Only managed a 8.35 Tony with the timing limited to 30 degrees and the starting line slip. I'll have to take it back to BG once I figure out how I somehow locked the timing out.
__________________
Rich Taylor I/SA - 321 Last edited by HandOverFist; 05-26-2015 at 08:48 PM. |
|
|
|
|
05-29-2015, 04:08 PM
|
#4 |
|
VIP Member
Join Date: Oct 2013
Location: Gulf Breeze, FL
Posts: 1,651
Likes: 8
Liked 33 Times in 16 Posts
|
Re: Ford vs Chevy Build-up
Believe I have the timing issue resolved...will have to record a pass to confirm. Added 120 pounds ballast today so it will be legal weight the next race. Found out this afternoon the replacement one-wire alternator has quit charging again. The only thing I can think of off hand is that small crank pulley must be spinning it too fast. When it was working it showed around 14.1 volts at idle.
__________________
Rich Taylor I/SA - 321 |
|
|
|
|
05-29-2015, 07:50 PM
|
#5 |
|
Senior Member
Join Date: Mar 2006
Posts: 977
Likes: 798
Liked 275 Times in 76 Posts
|
Re: Ford vs Chevy Build-up
Rich,
What brand alternator do you have? My East Coast Electric has a small pulley and a 4.5" pulley on the crank. It see's over 7000 engine RPM for the last 7 seasons on every pass without issue. The alternator should be self regulating regardless of RPM. What gauge of wire did you use from the alt to the battery? Sean
__________________
Sean Marconette 84 Mustang 5060 SS/N |
|
|
|
|
05-30-2015, 01:19 AM
|
#6 | |
|
VIP Member
Join Date: Oct 2013
Location: Gulf Breeze, FL
Posts: 1,651
Likes: 8
Liked 33 Times in 16 Posts
|
Re: Ford vs Chevy Build-up
Quote:
The set-up as run...  Just grasping at straws here. I did not have any 10 gauge wire on hand so I paralleled two 12 gauge wires to the battery positive and a short 10 gauge ground from the alternator case to a head. Edit: Just re-read the instructions and it states no Jegs alternators are designed to to be spun beyond 15,000rpm (6000 engine rpm).  I can try it one more time with a large crank pulley or purchase another brand alternator. At this juncture I just want one that works without worry.
__________________
Rich Taylor I/SA - 321 Last edited by HandOverFist; 05-30-2015 at 01:48 AM. |
|
|
|
|
|
05-30-2015, 04:03 AM
|
#7 | |
|
VIP Member
Join Date: Apr 2002
Location: Coarsegold, CA
Posts: 1,016
Likes: 57
Liked 320 Times in 102 Posts
|
Re: Ford vs Chevy Build-up
Quote:
I think that you have it backwards.... Big crank pulley & small alternator pulley = overdrive Small crank pulley & large alternator pulley = under-drive 4" crank pulley with 2" alt pulley at 7,000 rpm engine RPM = 14,000 alternator RPM 2" crank pulley with 4" alt pulley at 7,000 rpm engine RPM = 3,500 alternator RPM Hope this makes sense to you and helps...... Bob
__________________
Bob Mulry 7516 STK A & M Motorsports |
|
|
|
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
