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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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NOS with carbs

  • Thread starter Thread starter Wedge
  • Start date Start date Dec 9, 2003
W

Wedge

Founding Member
Apr 6, 2002
188
0
0
Dec 9, 2003
#1
  • Dec 9, 2003
  • #1
Carbs with a dual plane set up like the RPM performer. Are u guys having any issues using plate type Nitrous systems with the dual plane intakes? I know u cant spray 400 into her but say 150 just wondering about Cylenders 2 and 7 and poss running lean. Has anyone been very happy with there set up as far as maint goes. Finally what size fuel line are u using. I have the Moroso hard line I think its about 1/2 inch or 3/8. My motor make 300 at the wheels and with this and the addition of a 150 hit I think it should still be enough line to keep the fuel flowing with a BG280 pump. If I need bigger line let me know. I have to change something every year just to have something diff and I cant do anything like a short blk because im building a house so big car bills are a nono this year. If I break her shes going to sit but she is done correctly so she will hopefully stay together. Has stk short blk with Ford forged pistons,B-cam,Edelbrock RPM heads and intake out of the box and a 650 carb with 1 5/8 long tube header. Sits in front of a Tremec and aluminum Flywheel and a clutch masters clutch. has 4.10 gears with 27 inch Hoosier Quik Pro. Rearend is all braced with tubes also being welded and has a 8 point cage with 2 pipes going to Sub Frame. Runs consistent 12.1 at 110.00 on motor. Thanks 4 any help.
 
W

Wedge

Founding Member
Apr 6, 2002
188
0
0
Dec 10, 2003
#2
  • Dec 10, 2003
  • #2
Any help from the carb guys. Show me some love haha.
 
M

matm347

Founding Member
Aug 29, 2000
2,056
0
0
Dec 10, 2003
#3
  • Dec 10, 2003
  • #3
Your setup will handle a 150 shot fine as long as you tune in correctly.
The two carb guys I know that run at least 150 shot, leave their timing alone, and only change the plugs to two heat ranges cooler. The 302 based setup(somewhat similar to yours in a LIGHT car) went 11.5 on motor, and 10.1 with 150 shot.

I strongly suggest a fuel pressure cutoff switch, so just in case you dont have enough fuel pressure, the nitrous will be cut off.
 
D

davs5.0

Founding Member
Jul 10, 2002
921
0
0
windsor,ontario,canada
Dec 11, 2003
#4
  • Dec 11, 2003
  • #4
My buddy has run several setups like that on his 79 TA. The trick to making them live is to watch your timing, colder plugs and good fuel. I believe he knocked 4-6 degrees of timing out of it and adjusted after each run and a plug check. 2 ranges colder plug and some 110 octane just to be sure.
 
M

mattred90gt

Founding Member
Jun 14, 2002
436
0
0
CT
Jan 1, 2004
#5
  • Jan 1, 2004
  • #5
im doing a Bigshot plate system,, and i was just gonna run colder plugs and leave the timing where it is and see how that works for me
 

SCcopcar

Founding Member
Nov 21, 1999
326
0
0
Oklahoma
Jan 1, 2004
#6
  • Jan 1, 2004
  • #6
I used to burn up the 4 and 8 sparkplugs with a similar setup. Read all of the plugs each time until you get it tuned right. You probably should take out some timing even with colder plugs.
 
D

davs5.0

Founding Member
Jul 10, 2002
921
0
0
windsor,ontario,canada
Jan 1, 2004
#7
  • Jan 1, 2004
  • #7
If you check out the article in this months MM&FF, they were putting a nos kit on a small block. And they had quite a few tricks to tuning the system. The biggest surprise I read was how much timing they pulled out of the car. Check it out if you have a copy.
 

PURESTREET5006

New Member
Apr 1, 2003
349
0
0
In the tech line for tear down"AGAIN"
Jan 1, 2004
#8
  • Jan 1, 2004
  • #8
I wouldn't even consider using "spray" with a dual plane intake even with a small shot...I would always use some sort of open plenum intake.
 
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