75 Nova U/SA - Page 2

Alan Nyhus · 02-13-2015, 02:25 PM

Mike, Hedman makes the #68310 (1.5" tube convention style header) for the G bodies. Just looking at them, I don't think there would be too much involved in getting them in a Nova subframe. Hedman's #68311 is the same header with a ball flange at the rear rather than a flat collector flange. A set of these and those inexpensive OBX collectors could be a nice cost effective setup.

I've got experience with Schoenfeld headers and ran a set of their 1 5/8-1 3/4 steps with Performance Welding merge collectors last season on my stocker. Schoenfeld seemed good to work with as I ordered my headers with the collectors loose in the box, Maybe they could do a set of 1 1/2" for 'ya. -Al

MikeMoller · 03-11-2015, 09:05 PM

After looking at videos of some test runs, gonna go for more rear gear. Found a brand new Richmond 5.57 for a super price, will be in before the weekend(thanks Doug Smith), plan to test this SundayMight be a bit much for 1/4 mile, but will surely be fine for 1/8. We shall see! Also got some OBX merge collectors, they are stainless so took them to a welding shop to get some tabs welded on.

danny waters sr · 03-12-2015, 07:03 PM

Nice Mike

MikeMoller · 03-16-2015, 07:07 PM

5.57 gear helped, about .2. Only made 4 runs, still need more work.

MikeMoller · 03-31-2015, 05:39 PM

Updates
So took the car to a lumberyard and got it weighed, had to add 150 lbs. Disappointing that it was that light. Also occurred to me that the drive shaft did not have much play, just barely could get it in, the ujoint had to be turned to get it in. Fortunately, it had the bigger trans yoke, so swapped that out with the smaller one just to make there is no bind going down track. Cut 6 inches off the collector to get total of 19. Thinking the 25 inches was to much and hurting mph. MPH is 70 at the 1/8, and 86 in the 1/4, seems like it should be higher than that in the 1/4.

Went to Dinwiddie/Richmond for a CCRA race, and only got to run 1/8. Run one was 9.39 @ 70.13mph. Went from 69 jet to 66 jet, changed timing from 42 to 40. Went 9.40 at 70.02. Had to leave it alone for racing at this point, won first round 9.40 @ 70.01. Lost next round 9.359 @ 70.25 (broke out-9.38 dial).
For the last run, left at 3300 instead of 3000 - it was close to overcoming the brakes - and up 100 rpm on both shift points -5300 and 5800.

60 fts ranged from 1.94-1.91, 330's 5.91 - 5.89.

02-13-2015, 02:25 PM	#1
Alan Nyhus VIP Member Join Date: Dec 2002 Location: Lower Dakota territory Posts: 1,180 Likes: 1,074 Liked 799 Times in 236 Posts	Re: 75 Nova U/SA Mike, Hedman makes the #68310 (1.5" tube convention style header) for the G bodies. Just looking at them, I don't think there would be too much involved in getting them in a Nova subframe. Hedman's #68311 is the same header with a ball flange at the rear rather than a flat collector flange. A set of these and those inexpensive OBX collectors could be a nice cost effective setup. I've got experience with Schoenfeld headers and ran a set of their 1 5/8-1 3/4 steps with Performance Welding merge collectors last season on my stocker. Schoenfeld seemed good to work with as I ordered my headers with the collectors loose in the box, Maybe they could do a set of 1 1/2" for 'ya. -Al __________________ "That'll never work....."

03-11-2015, 09:05 PM	#2
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 After looking at videos of some test runs, gonna go for more rear gear. Found a brand new Richmond 5.57 for a super price, will be in before the weekend(thanks Doug Smith), plan to test this SundayMight be a bit much for 1/4 mile, but will surely be fine for 1/8. We shall see! Also got some OBX merge collectors, they are stainless so took them to a welding shop to get some tabs welded on. __________________ Mike Moller NHRA 203 Q-R-T/SA Last edited by MikeMoller; 03-13-2015 at 08:26 AM.

03-12-2015, 07:03 PM	#3
danny waters sr VIP Member Join Date: Apr 2007 Location: lagrange,nc Posts: 2,224 Likes: 1 Liked 0 Times in 0 Posts	Re: 75 Nova U/SA Nice Mike __________________ Danny Waters, Sr / 73 Duster "340"

03-16-2015, 07:07 PM	#4
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 5.57 gear helped, about .2. Only made 4 runs, still need more work. __________________ Mike Moller NHRA 203 Q-R-T/SA

03-31-2015, 05:39 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 Updates So took the car to a lumberyard and got it weighed, had to add 150 lbs. Disappointing that it was that light. Also occurred to me that the drive shaft did not have much play, just barely could get it in, the ujoint had to be turned to get it in. Fortunately, it had the bigger trans yoke, so swapped that out with the smaller one just to make there is no bind going down track. Cut 6 inches off the collector to get total of 19. Thinking the 25 inches was to much and hurting mph. MPH is 70 at the 1/8, and 86 in the 1/4, seems like it should be higher than that in the 1/4. Went to Dinwiddie/Richmond for a CCRA race, and only got to run 1/8. Run one was 9.39 @ 70.13mph. Went from 69 jet to 66 jet, changed timing from 42 to 40. Went 9.40 at 70.02. Had to leave it alone for racing at this point, won first round 9.40 @ 70.01. Lost next round 9.359 @ 70.25 (broke out-9.38 dial). For the last run, left at 3300 instead of 3000 - it was close to overcoming the brakes - and up 100 rpm on both shift points -5300 and 5800. 60 fts ranged from 1.94-1.91, 330's 5.91 - 5.89. __________________ Mike Moller NHRA 203 Q-R-T/SA Last edited by MikeMoller; 04-06-2015 at 08:35 PM.