Turned the juice loose on The Cat

[econodrag]

Well I made 2 passes on the 100 shot of nitrous tonight. The car was running high 7.20's on motor in the 1/8 all night. So after I lost in the bracket race I decided to turn the bottle on an make a couple of tuning passes. The first pas was with less than 900 psi on the bottle and I forgot to retard the timing so it ran a decent 6.97 @ 99 mph. The second pass I had 1100 psi in the bottle and the timing retarded 6* and ran a 6.90 @ 99 mph. Neither pass could I hook up. Spun the tires all the way past 60 foot. The 60 foots were 1.57 and 1.55 and I normally do that on motor. Looks like if it will hook up a 6.70 should happen with the 100 shot. Going to try and ease the hp level up some but have to be careful since my engine has 12.7:1 compression.

[Sapphire]

What is your mph on motor ?? -- and What is your shift points ?? --- You'll probably pick up by putting a tighter stall ---- I typically pick up 7 mph on my 100 shot ..

[econodrag]

What is your mph on motor ?? -- and What is your shift points ?? --- You'll probably pick up by putting a tighter stall ---- I typically pick up 7 mph on my 100 shot .. Mph on motor was 93 I was shifting @ 6500. Stall is 4500 and I did'nt fell any slipping of the convertor. Just the tires The car even tracked sideways for over 60 feet on the 2nd pass.

[san408]

Why are you worried about the compression being 12.7 to 1?

That myth about wanting lower compression with nitrous has been gone for quite a while now.

[stretch]

Why are you worried about the compression being 12.7 to 1?

That myth about wanting lower compression with nitrous has been gone for quite a while now.


prolly stock block?

[econodrag]

prolly stock block?
Yep....Rods and crank too. I figured the head gaskets would not hold either. You know with only 4 bolts per cylinder holding the head down.

[stretch]

Yep....Rods and crank too. I figured the head gaskets would not hold either. You know with only 4 bolts per cylinder holding the head down.
i run the cheap fel-pro head gask. that come in gasket kit.

i would blow a gask. than destro a piston.

[STROKD]

I though tthe rule of thumb was 2 degrees per 50 RWHP, so 100 shot would be like minus 3-4 degrees not -6? :confused:

I think you are leaving -.1 ET on the table...

[econodrag]

I though tthe rule of thumb was 2 degrees per 50 RWHP, so 100 shot would be like minus 3-4 degrees not -6? :confused:

I think you are leaving -.1 ET on the table... You are correct. I looked once I unloaded the car and saw that I retarded the timing only 5*. I adjusted the timing in the dark so I was just guessing. I would ruther have the timing a little too retarded than too far advanced and hurt the engine.

[Sam88Gta2]

I though tthe rule of thumb was 2 degrees per 50 RWHP, so 100 shot would be like minus 3-4 degrees not -6? :confused:

I think you are leaving -.1 ET on the table...
Most go by 2 for every 50hp after 100.
So on a 100 you shouldnt retard but 1-2 if any.

[Old Fart]

I'm with Econodrag... Better safe than sorry. Always easier to add a little more than take it back after it's too late.

[sixgun86]

Put some race gas in the tank and bring that timing back up a few degrees at a time,it should help the MPH and the ET.

BTW I think those old cougars are bad ass.Always wanted one.

[econodrag]

Put some race gas in the tank and bring that timing back up a few degrees at a time,it should help the MPH and the ET.

BTW I think those old cougars are bad ass.Always wanted one.
It had 110 octane in the tank. Thats what is always ran in the car since it is a 12.7:1 motor.

[DON SVO]

Meeeeeeeeeeeeeeeeeeeeeooooooooooooooooooooooooow!

[Super Coupe]

I like that car. I've seen you run before and that car runs good.

[econodrag]

Thanks

[sixgun86]

It had 110 octane in the tank. Thats what is always ran in the car since it is a 12.7:1 motor.

That should be plenty enough for 100 shot with full timing.Possibly even a little overkill.