new super street engine

jmcarter · 10-05-2018, 09:37 AM

Assume you’ve got a fairly heavy car (my Super Street Avenger was right at minimum and only had 600 and could run 137); lightening the car yields the same results and helps with reliability and can possibly make it react faster, depending on your setup of course.

Lenny5160 · 10-05-2018, 10:48 AM

I wouldn't let the headers dictate your plans. I'm a big fan of small headers; they won't blow up the dyno sheet but always seem to ET well relative to the measured power.

The 632 in my dragster only has 2.25" headers and is an underachiever at 1020 HP, but all the other guys going 8.90 at 180+ seem to need 1200+ HP to do it and I'm in that club.

I'd probably go with the longer stroke; more torque to get that car moving off the stop. And the smallish headers will help with velocity at lower RPM. Same with a smallish carb.

gnicholson · 10-05-2018, 02:46 PM

the car is 3150 with me. it also sets a bit high and has the aerodynamics of a similar sized brick. i plan on lowering the front a bit this winter. wanted to let the new springs take a set before cutting them. I thought it would be faster than it is to but I'm sure it's the car and not the engine. It has a 488 rear right now and is going through the traps at about 7400 RPM. I've tried a couple of different converters. Right now I have a very consistent car in the 60 and im extremely happy with how the car drives. i can fab another set of headers if i need to just trying to keep it simple. i definitively agree with staying on the small side with pri tubes.
i talked to you this last weekend in great bend tony. i have the dark red 70 chevelle. thats an awesome nova you have.

Lenny5160 · 10-05-2018, 03:45 PM

Quote:

Originally Posted by gnicholson

i talked to you this last weekend in great bend tony. i have the dark red 70 chevelle. thats an awesome nova you have.

I knew you had some posts on the forum at the time we spoke! Great to actually meet you, and that Chevelle is extremely nice! I've never seen a car that said "Wagner's" on the door that wasn't mint.

Average Joe · 10-05-2018, 06:12 PM

Go big or go home.

X-TECH MAN · 10-05-2018, 07:01 PM

I did not know MPH won races in the .90 classes ?

X-TECH MAN · 10-06-2018, 09:02 AM

quote deleted .........

Tom Goldman · 10-08-2018, 09:15 AM

There is a huge benefit in air flow with the larger bore size although I would go to 4.600" ,the additional .025" would be insignificant .
I would go with the 4.250 stroke and a .400 long rod. ….This has proven to be a good combination for making power thru a very wide RPM band .
On a car as heavy as yours , you will benefit from the 2 1/8" headers even with the larger displacement.
Just don't over cam it with too much duration .

nomad · 10-28-2018, 10:05 PM

[QUOTE=gnicholson;574346]Right now I have a very consistent car in the 60 and im extremely happy with how the car drives. i can fab another set of headers if i need to just trying to keep it simple. i definitively agree with staying on the small side with pri tubes.
[QUOTE]

If the car is very consistent why are we making changes? Is the engine worn out or do you just want to go faster?

gnicholson · 10-29-2018, 12:14 PM

mostly i would like the car to be faster. i dont have to be on kill but 142 to 45 would work

10-05-2018, 09:37 AM	#1
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,301 Likes: 2,397 Liked 3,199 Times in 977 Posts	Re: new super street engine Assume you’ve got a fairly heavy car (my Super Street Avenger was right at minimum and only had 600 and could run 137); lightening the car yields the same results and helps with reliability and can possibly make it react faster, depending on your setup of course. __________________ Jim Carter 2340 Super Stock 2340 SST/2340 Stock Set another place at the table

10-05-2018, 10:48 AM	#2
Lenny5160 Senior Member Join Date: Nov 2015 Location: Inver Grove Heights, MN Posts: 898 Likes: 604 Liked 431 Times in 224 Posts	Re: new super street engine I wouldn't let the headers dictate your plans. I'm a big fan of small headers; they won't blow up the dyno sheet but always seem to ET well relative to the measured power. The 632 in my dragster only has 2.25" headers and is an underachiever at 1020 HP, but all the other guys going 8.90 at 180+ seem to need 1200+ HP to do it and I'm in that club. I'd probably go with the longer stroke; more torque to get that car moving off the stop. And the smallish headers will help with velocity at lower RPM. Same with a smallish carb. __________________ S/ST 51 S/C 53

10-05-2018, 02:46 PM	#3
gnicholson Member Join Date: Sep 2011 Posts: 103 Likes: 15 Liked 4 Times in 3 Posts	Re: new super street engine the car is 3150 with me. it also sets a bit high and has the aerodynamics of a similar sized brick. i plan on lowering the front a bit this winter. wanted to let the new springs take a set before cutting them. I thought it would be faster than it is to but I'm sure it's the car and not the engine. It has a 488 rear right now and is going through the traps at about 7400 RPM. I've tried a couple of different converters. Right now I have a very consistent car in the 60 and im extremely happy with how the car drives. i can fab another set of headers if i need to just trying to keep it simple. i definitively agree with staying on the small side with pri tubes. i talked to you this last weekend in great bend tony. i have the dark red 70 chevelle. thats an awesome nova you have.

10-05-2018, 06:12 PM	#5
Average Joe Junior Member Join Date: Jan 2007 Posts: 33 Likes: 17 Liked 18 Times in 8 Posts	Re: new super street engine Go big or go home.

10-05-2018, 07:01 PM	#6
X-TECH MAN Banned Join Date: Dec 2007 Location: Lake Placid, Florida Posts: 3,203 Likes: 1,047 Liked 235 Times in 110 Posts	Re: new super street engine I did not know MPH won races in the .90 classes ?

10-06-2018, 09:02 AM	#7
X-TECH MAN Banned Join Date: Dec 2007 Location: Lake Placid, Florida Posts: 3,203 Likes: 1,047 Liked 235 Times in 110 Posts	Re: new super street engine quote deleted ......... Last edited by X-TECH MAN; 10-07-2018 at 01:33 PM.

10-08-2018, 09:15 AM	#8
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,477 Likes: 892 Liked 883 Times in 237 Posts	Re: new super street engine There is a huge benefit in air flow with the larger bore size although I would go to 4.600" ,the additional .025" would be insignificant . I would go with the 4.250 stroke and a .400 long rod. ….This has proven to be a good combination for making power thru a very wide RPM band . On a car as heavy as yours , you will benefit from the 2 1/8" headers even with the larger displacement. Just don't over cam it with too much duration . __________________ Tom Goldman 1500 SG , 1506 STK

10-28-2018, 10:05 PM	#9
nomad Junior Member Join Date: Oct 2013 Posts: 47 Likes: 5 Liked 7 Times in 4 Posts	Re: new super street engine [QUOTE=gnicholson;574346]Right now I have a very consistent car in the 60 and im extremely happy with how the car drives. i can fab another set of headers if i need to just trying to keep it simple. i definitively agree with staying on the small side with pri tubes. [QUOTE] If the car is very consistent why are we making changes? Is the engine worn out or do you just want to go faster?

10-29-2018, 12:14 PM	#10
gnicholson Member Join Date: Sep 2011 Posts: 103 Likes: 15 Liked 4 Times in 3 Posts	Re: new super street engine mostly i would like the car to be faster. i dont have to be on kill but 142 to 45 would work

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode