75 Nova U/SA - Page 2

Bob Shaw · 01-25-2015, 12:43 PM

I love it !

Charlie A · 02-09-2015, 09:18 PM

COOL:

Bill Belden · 02-09-2015, 09:30 PM

Try Schoenfeld for the headers, they have 1 5/8 for the Nova

Mark Yacavone · 02-09-2015, 11:19 PM

Mikey, Here's what I'd do out in the back yard.
Get a few of the these and cut the first 8- 10 inches out of each tube..one at a time.
Slip a piece of these of the appropriate size into what you've got there.
You don't have to be a welding pro because the smaller tube is going the right way, if you follow me.
You might be able to slip the tube into the 1 and 5/8 stub on the flange. Mig weld or braze it on the outside of the flange. De -burr and roll the inside edge ,and you got it.
Doubt if it will hurt anything..Might tell you a thing or two.

http://www.speedwaymotors.com/Mild-S...Inch,1734.html

MikeMoller · 02-09-2015, 11:42 PM

Good idea Mark, I got some old Hedmans laying in the corner I was going to cut up and modify on the collector end, might as well do the other end and try for s step header effect. Thanks.

bob3240 · 02-10-2015, 10:47 AM

been following your project Mike. Great first time outing. keep us posted. Bob Michael

dmir55 · 07-25-2015, 01:40 PM

The powers that are not checking booster size for now. All they worry about is main body venturi size and throttle plate bore size.

MikeMoller · 10-19-2015, 06:57 PM

Update - Found a set of 1.5 primary tube headers so installed them with 18 inches of 2.5 collector. Changed the converter to one with more stall and about 500 more flash. Leaned the carb up just a bit - from 69 jet down to 66 jets.
The result (in great air 30.4 barometer 495 adj alt) was best runs to date at legal weight (3470) - 9.152 and a 9.156, 73.0 and 72.99 mph in the eighth. Need to get this out to a test and tune since was doing this on race day, looks like on the right track. Car was running consistent 9.39 / 9.40 before at 70.2's mph.

MikeMoller · 11-01-2015, 08:35 AM

Update - Spent a day last weekend doing test and tune to try and get jetting/timing set, and get some 1/4 mile times.. Best was 14.87 at 1700 D/A. Most were 14.92-14.94. Best was with .064 jet and 40 timing.

So readjusted the valves based on some ideas from this site, for racing this weekend, and HOORAY went 14.84 - UNDER NHRA 1/4 index for the first time. Two other runs 14.91 (changed shift points) and 14.90 first round elims(dialed to high-opponent had way better lite and I dialed a little to high-broke out). The track had issues with the MPH clocks so no 1/4 MPH data for any runs.
I also put on new front tires-same size-and consensus was less rolling resistance since riding on the new tire 'nubbies'-LOL.

HP HUNTER · 11-01-2015, 09:18 AM

Very cool!

01-25-2015, 12:43 PM	#1
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 441 Likes: 335 Liked 323 Times in 63 Posts	Re: 75 Nova U/SA I love it ! __________________ Bob Shaw V/SA 515

02-09-2015, 09:18 PM	#2
Charlie A VIP Member Join Date: Sep 2010 Location: Mississippi Gulf Coast Posts: 2,483 Likes: 68 Liked 87 Times in 63 Posts	Re: 75 Nova U/SA COOL: Last edited by Charlie A; 02-09-2015 at 09:21 PM.

02-09-2015, 09:30 PM	#3
Bill Belden Member Join Date: Jun 2002 Location: York, PA Posts: 241 Likes: 0 Liked 1 Time in 1 Post	Re: 75 Nova U/SA Try Schoenfeld for the headers, they have 1 5/8 for the Nova __________________ Bill Belden Retired Stock Eliminator [emailSTK1100@comcast.net[/email]

02-09-2015, 11:19 PM	#4
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,840 Likes: 2,932 Liked 5,148 Times in 1,965 Posts	Re: 75 Nova U/SA Mikey, Here's what I'd do out in the back yard. Get a few of the these and cut the first 8- 10 inches out of each tube..one at a time. Slip a piece of these of the appropriate size into what you've got there. You don't have to be a welding pro because the smaller tube is going the right way, if you follow me. You might be able to slip the tube into the 1 and 5/8 stub on the flange. Mig weld or braze it on the outside of the flange. De -burr and roll the inside edge ,and you got it. Doubt if it will hurt anything..Might tell you a thing or two. http://www.speedwaymotors.com/Mild-S...Inch,1734.html __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers Last edited by Mark Yacavone; 02-10-2015 at 01:24 PM.

02-09-2015, 11:42 PM	#5
MikeMoller Senior Member Join Date: May 2010 Location: Raleigh NC Posts: 637 Likes: 27 Liked 254 Times in 78 Posts	Re: 75 Nova U/SA Good idea Mark, I got some old Hedmans laying in the corner I was going to cut up and modify on the collector end, might as well do the other end and try for s step header effect. Thanks. __________________ Mike Moller NHRA 203 Q-R-T/SA

02-10-2015, 10:47 AM	#6
bob3240 Member Join Date: Jan 2009 Location: lebanon ohio Posts: 251 Likes: 3 Liked 16 Times in 5 Posts	Re: 75 Nova U/SA been following your project Mike. Great first time outing. keep us posted. Bob Michael

07-25-2015, 01:40 PM	#7
dmir55 Junior Member Join Date: Jul 2014 Location: northern Minnesota Posts: 64 Likes: 0 Liked 0 Times in 0 Posts	Re: 75 Nova U/SA The powers that are not checking booster size for now. All they worry about is main body venturi size and throttle plate bore size.

10-19-2015, 06:57 PM	#8
MikeMoller Senior Member Join Date: May 2010 Location: Raleigh NC Posts: 637 Likes: 27 Liked 254 Times in 78 Posts	Re: 75 Nova U/SA Update - Found a set of 1.5 primary tube headers so installed them with 18 inches of 2.5 collector. Changed the converter to one with more stall and about 500 more flash. Leaned the carb up just a bit - from 69 jet down to 66 jets. The result (in great air 30.4 barometer 495 adj alt) was best runs to date at legal weight (3470) - 9.152 and a 9.156, 73.0 and 72.99 mph in the eighth. Need to get this out to a test and tune since was doing this on race day, looks like on the right track. Car was running consistent 9.39 / 9.40 before at 70.2's mph. __________________ Mike Moller NHRA 203 Q-R-T/SA Last edited by MikeMoller; 10-23-2015 at 04:40 PM.

11-01-2015, 08:35 AM	#9
MikeMoller Senior Member Join Date: May 2010 Location: Raleigh NC Posts: 637 Likes: 27 Liked 254 Times in 78 Posts	Re: 75 Nova U/SA Update - Spent a day last weekend doing test and tune to try and get jetting/timing set, and get some 1/4 mile times.. Best was 14.87 at 1700 D/A. Most were 14.92-14.94. Best was with .064 jet and 40 timing. So readjusted the valves based on some ideas from this site, for racing this weekend, and HOORAY went 14.84 - UNDER NHRA 1/4 index for the first time. Two other runs 14.91 (changed shift points) and 14.90 first round elims(dialed to high-opponent had way better lite and I dialed a little to high-broke out). The track had issues with the MPH clocks so no 1/4 MPH data for any runs. I also put on new front tires-same size-and consensus was less rolling resistance since riding on the new tire 'nubbies'-LOL. __________________ Mike Moller NHRA 203 Q-R-T/SA

11-01-2015, 09:18 AM	#10
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 656 Likes: 86 Liked 373 Times in 129 Posts	Re: 75 Nova U/SA Very cool!