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Quest for 9s.Cam choice or Chassi setup. #2708798
10/21/19 10:43 AM
10/21/19 10:43 AM
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Indiana
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64nss330 Offline OP
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In my quest for 9s I'm having problems with my combination.
Planning on 4 link or ladder bars and Viking doulbe adjustable shocks this winter.
And hoping to cut another 200 lbs off the car.
Will I need more Cam to get there?
Any suggestions on chassi set up?



65 Coronet all steel except fiberglass lift off hood and scoop.
3595 lbs race ready.
465 rb, Ohio crankshaft, 7.1 h-beam rods, 12.78 CR
Comp .650/.651 lift 264/268 @ .050 solid roller
Comp 1.5 ProMagnum roller rockers
TF 270s, 2" fenderwellheaders
Indy Modman with custom top to increase plenum volume and space carbs out over runners.
Dual Eddy 750s
MF 300 pump, -8 fuel line to regulator -6 to carbs
A&A 727 transmission
8 3/4, 35 spline spooled, 4.30
SS springs, Rancho 9 way shocks
Calvert 90/10 front shocks

Best of 10.78 @ 124 w/ 200 lbs of ballist and a 1.56 60 ft.
Best 60 of 1.47

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708808
10/21/19 11:06 AM
10/21/19 11:06 AM
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So. Burlington, Vt.
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Is the 3595 with or without the 200lbs of ballast?

What does it run without the ballast?

Any pics of the intake/carbs?

I’d suggest seeing if you could borrow something like a 440-3 and a dominator so you’d really know how much that intake & carbs are costing you.

9’s??

Sell your short block, build a bigger one.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708818
10/21/19 11:40 AM
10/21/19 11:40 AM
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AndyF Offline
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700 hp should be enough to get you into the low 10's or maybe high 9's if everything else is perfect. You can make 700 hp with that long block but you're going to need to get rid of the Mod Man intake. If you need to run dual carbs for NSS then you might have an issue. There aren't a lot of dual quad manifolds for MW heads that work all that great. I'd suggest putting a ported Super Victor on there with a good 1050 carb and see how fast you can go then try to figure out if you want to go fast or if you want to look cool. There are some guys going fast with the Indy bathtub intake so you might ask them what their combo is. I think they usually have much larger engines. I've run the bathtub a few times and they work better than an old cross ram, but they still aren't great. Indy didn't even provide a gasket between the top and bottom half. Maybe they've fixed that by now?

Re: Quest for 9s.Cam choice or Chassi setup. [Re: fast68plymouth] #2708829
10/21/19 11:53 AM
10/21/19 11:53 AM
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64nss330 Offline OP
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3595 withput the 200lbs ballist. I did not get a chance to run it without the ballist.
I run NSS class so the dual quads are required. I'll post a pic soon.
Originally Posted by fast68plymouth
Is the 3595 with or without the 200lbs of ballast?

What does it run without the ballast?

Any pics of the intake/carbs?

I’d suggest seeing if you could borrow something like a 440-3 and a dominator so you’d really know how much that intake & carbs are costing you.

9’s??

Sell your short block, build a bigger one.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: AndyF] #2708830
10/21/19 12:00 PM
10/21/19 12:00 PM
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64nss330 Offline OP
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You are correct Andy I do run NSS so the dual quads are required. This intake top and divertor combo I developed for a buddies 500 low deck NSS Dart so figured I'd try it myself.
Originally Posted by AndyF
700 hp should be enough to get you into the low 10's or maybe high 9's if everything else is perfect. You can make 700 hp with that long block but you're going to need to get rid of the Mod Man intake. If you need to run dual carbs for NSS then you might have an issue. There aren't a lot of dual quad manifolds for MW heads that work all that great. I'd suggest putting a ported Super Victor on there with a good 1050 carb and see how fast you can go then try to figure out if you want to go fast or if you want to look cool. There are some guys going fast with the Indy bathtub intake so you might ask them what their combo is. I think they usually have much larger engines. I've run the bathtub a few times and they work better than an old cross ram, but they still aren't great. Indy didn't even provide a gasket between the top and bottom half. Maybe they've fixed that by now?

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708837
10/21/19 12:21 PM
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64nss330 Offline OP
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Andy. Is that cam capable of producing 700hp?

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708841
10/21/19 12:27 PM
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If you are going to do all the work to update the rear suspension, skip the ladder bars and go right to the 4 link.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: Quest for 9s.Cam choice or Chassi setup. [Re: madscientist] #2708843
10/21/19 12:30 PM
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Originally Posted by madscientist
If you are going to do all the work to update the rear suspension, skip the ladder bars and go right to the 4 link.


Better check the rules first, and see if 4 links are allowed in NSS.


69 GTX 68 Road Runner
Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708851
10/21/19 12:47 PM
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64nss330 Offline OP
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This is the top I've developed for a buddy. Moves the carbs out over the ports and adds 1 1/2" in plentum height.

[Linked Image]

Last edited by 64nss330; 10/21/19 12:56 PM. Reason: Adding comment
Re: Quest for 9s.Cam choice or Chassi setup. [Re: JERICOGTX] #2708852
10/21/19 12:52 PM
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64nss330 Offline OP
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We do have a few cars running 4 link setups in the Victory Performance NSS series.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708853
10/21/19 12:52 PM
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Originally Posted by 64nss330
Andy. Is that cam capable of producing 700hp?


Shouldn't be a problem. I made 775 hp with my pump gas 470 using TF 270 heads and a Comp 264/268 roller cam. You have more compression than I had so you should be able to make more power. The difference is I was using a really good intake manifold plus I probably had some other tricks that you don't have.

https://www.hotrod.com/articles/dyno-tested-vacuum-pump-help-engine-make-power/

Re: Quest for 9s.Cam choice or Chassi setup. [Re: AndyF] #2708863
10/21/19 01:14 PM
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64nss330 Offline OP
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[Andy your articles are why I bought the 270s. I do need to port the intake as it does have huge steps on the roof of the runners where Indy did the cnc port match when opened to MW port. quote=AndyF]
Originally Posted by 64nss330
Andy. Is that cam capable of producing 700hp?


Shouldn't be a problem. I made 775 hp with my pump gas 470 using TF 270 heads and a Comp 264/268 roller cam. You have more compression than I had so you should be able to make more power. The difference is I was using a really good intake manifold plus I probably had some other tricks that you don't have.

https://www.hotrod.com/articles/dyno-tested-vacuum-pump-help-engine-make-power/ [/quote]

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708868
10/21/19 01:27 PM
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If you're serious about running 9's then you should pull that engine out this winter and put it on a dyno. Buy or borrow a good intake and carb so you can run a comparison. I bet that the Wilson ported intake that I was using on my engine would pick up 50 hp over your current intake. But you aren't going to know it until you do some back to back tests.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: madscientist] #2708872
10/21/19 01:38 PM
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Re: Quest for 9s.Cam choice or Chassi setup. [Re: AndyF] #2708897
10/21/19 02:57 PM
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64nss330 Offline OP
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Its coming out anyway so a trip to the dyno may be in order. I'll what I can do on barrowin a good intake a carb to make a comparison.


Originally Posted by AndyF
If you're serious about running 9's then you should pull that engine out this winter and put it on a dyno. Buy or borrow a good intake and carb so you can run a comparison. I bet that the Wilson ported intake that I was using on my engine would pick up 50 hp over your current intake. But you aren't going to know it until you do some back to back tests.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: madscientist] #2708898
10/21/19 03:00 PM
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64nss330 Offline OP
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What is a good startin point for a 4 link setup. I'm thinking 55" out 7" off the ground. Any recommendations?

Originally Posted by madscientist
If you are going to do all the work to update the rear suspension, skip the ladder bars and go right to the 4 link.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: 64nss330] #2708900
10/21/19 03:01 PM
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Sounds like a good idea. A couple of days on the dyno swapping intakes will give you a good baseline to work from. I have a customer with a similar car and engine combo to what you have and he runs high 9's. The biggest difference is he has a ported Super Victor intake and he is at 3400 lbs on the starting line.

Re: Quest for 9s.Cam choice or Chassi setup. [Re: AndyF] #2708913
10/21/19 03:54 PM
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Brent Wheeler runs a 500"? with a Mod-Man. I believe it has run 9.50. My N/SS car runs 9.25 on ladder bars very effectively. Been 1.240. No need for a 4 link. Not all associations allow 4 link.
Doug

Last edited by dvw; 10/21/19 07:22 PM.
Re: Quest for 9s.Cam choice or Chassi setup. [Re: dvw] #2708947
10/21/19 06:23 PM
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64nss330 Offline OP
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Doug I think Brent is running a 540 and I'm interested to see what happens when he installs my raised top and divertors.

Originally Posted by dvw
Brent Wheller runs a 500"with a ModMan. I believe it has run 9.50,5". My N/ss car runs 9.25 on ladder bars very effectivly.
Doug

Re: Quest for 9s.Cam choice or Chassi setup. [Re: AndyF] #2708949
10/21/19 06:30 PM
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64nss330 Offline OP
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Bruce Lang is running a 470 in his 68 NSS barracuda with the TF270s and a Modman with 1 1/2 spacer best of 9.48 @ 3200 lbs.
I just can't seem to get my combination to work that well.
Primarily was wondering if I needed to go with more duration on my cam, like 280ish.

Originally Posted by AndyF
Sounds like a good idea. A couple of days on the dyno swapping intakes will give you a good baseline to work from. I have a customer with a similar car and engine combo to what you have and he runs high 9's. The biggest difference is he has a ported Super Victor intake and he is at 3400 lbs on the starting line.

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