Msd rpm selector switch

KRatcliff · 02-12-2013, 10:43 AM

Quote:

Originally Posted by Ian Hill

I have installed the rpm selctor switch 8670 in my stocker and use it instead of the 2 step individual pills as i have recently been racing at a dtrip that have the first two passes of the night in the day light and the rest at night, so i find myself adjusting the rpm of the launch to compensate for the night time brightness of the tree.

The module (8670) comes with about a 4 inch connector cable, my question is: can i cut these wires and extend them? i'd like to have this module mounted at my shifter where i can make changes as i am about to make my run, rather than sitting in the staging lanes, strapped in and not able to reach it.

Ian

General Regs 8:2 "Two-steps or other rev limiters that are
adjustable by thumbwheel, replaceable chips, and the like may not
be within the driver’s reach and will preferably be located outside
the driver compartment."

Ian Hill · 02-12-2013, 12:42 PM

Quote:

Originally Posted by KRatcliff

General Regs 8:2 "Two-steps or other rev limiters that are
adjustable by thumbwheel, replaceable chips, and the like may not
be within the driver’s reach and will preferably be located outside
the driver compartment."

ahhhh, read the rules, seems like as good an answer as any!

Ian

69Cobra · 02-12-2013, 01:31 PM

Quote:

Originally Posted by KRatcliff

General Regs 8:2 "Two-steps or other rev limiters that are
adjustable by thumbwheel, replaceable chips, and the like may not
be within the driver’s reach and will preferably be located outside
the driver compartment."

What's the reason for this? Shouldn't the driver have compete control over the car, rev limiters included.

KRatcliff · 02-12-2013, 02:02 PM

I don't know the reason. I just remembered the rule because I wanted to do exactly the same thing the original poster wants to do, but I had read that you couldn't in the rule book.

Dave Turner · 02-12-2013, 02:09 PM

MSD #8735 features a shielded cable for that purpose and I have seen it in use in Stockers......planned to use one in mine. It's a 3-step selector featuring burnout & high end chips plus adjustable launch rpm.

Ian Hill · 02-12-2013, 03:42 PM

hi Dave, is it something you planned on placing within your reach as a driver?

Mike Pearson · 02-12-2013, 04:24 PM

Quote:

Originally Posted by Ian Hill

hi Dave, is it something you planned on placing within your reach as a driver?

Just mount it on some velcro so you can move it around the drivers area just in case a tech guy gives you trouble.

Dave Turner · 02-12-2013, 05:19 PM

Quote:

Originally Posted by Ian Hill

hi Dave, is it something you planned on placing within your reach as a driver?

Was going to mount it on the Turbo Action shifter frame behind the selector....handy to my right hand.

Dave Turner · 02-13-2013, 10:49 AM

Seems to be one of those areas cloaked in shades of gray and ultimately subject to the approval of the tech team. IHRA mentions nothing of driver accessability and includes the term "3-step" in the Stock rules. I think I'll use the velcro as per Mike's suggestion.

Jeff Jewell · 02-13-2013, 12:24 PM

A few years back, my Dad has one of those MSD selectors connected to his air shifter, which was right next to him in the car. It was in there for a long time, but at one of the races, tech made him move it or remove it since it was within reach. He switched over to using chips after that.

02-12-2013, 02:02 PM	#4
KRatcliff Senior Member Join Date: Sep 2011 Posts: 769 Likes: 75 Liked 534 Times in 143 Posts	Re: Msd rpm selector switch I don't know the reason. I just remembered the rule because I wanted to do exactly the same thing the original poster wants to do, but I had read that you couldn't in the rule book.

02-12-2013, 02:09 PM	#5
Dave Turner VIP Member Join Date: Oct 2005 Location: Schomberg, ON, Canada Posts: 1,222 Likes: 1,606 Liked 364 Times in 138 Posts	Re: Msd rpm selector switch MSD #8735 features a shielded cable for that purpose and I have seen it in use in Stockers......planned to use one in mine. It's a 3-step selector featuring burnout & high end chips plus adjustable launch rpm. __________________ Dave Turner SS/GT #1153

02-12-2013, 03:42 PM	#6
Ian Hill Member Join Date: Sep 2008 Posts: 216 Likes: 0 Liked 6 Times in 3 Posts	Re: Msd rpm selector switch hi Dave, is it something you planned on placing within your reach as a driver? __________________ They say money can't buy happiness, it can buy race car parts, and that makes me happy Ian Hill GT/FA 1982 Camaro, F/CM 1968 Camaro

02-13-2013, 10:49 AM	#9
Dave Turner VIP Member Join Date: Oct 2005 Location: Schomberg, ON, Canada Posts: 1,222 Likes: 1,606 Liked 364 Times in 138 Posts	Re: Msd rpm selector switch Seems to be one of those areas cloaked in shades of gray and ultimately subject to the approval of the tech team. IHRA mentions nothing of driver accessability and includes the term "3-step" in the Stock rules. I think I'll use the velcro as per Mike's suggestion. __________________ Dave Turner SS/GT #1153

02-13-2013, 12:24 PM	#10
Jeff Jewell Member Join Date: Jun 2002 Location: Bangor, PA Posts: 182 Likes: 41 Liked 171 Times in 36 Posts	Re: Msd rpm selector switch A few years back, my Dad has one of those MSD selectors connected to his air shifter, which was right next to him in the car. It was in there for a long time, but at one of the races, tech made him move it or remove it since it was within reach. He switched over to using chips after that.