yeah my bddy is weighning in at about 3500-3600 and he hit 120 w/ 430rwhp

-brandon

 

Cyrus your weight and stall/gearing combo in my opinion were the primary reasons your car ran such a stout #

I never realized how many A4's were running 4.10's and 4200+converters I will try to do it with my 3.23's and 3600vig and if all else fails I will step up the rear
I will have the car on MT Drag Radials as well and possibly prostars all the way around by the end of the month

Wish me luck

 

I want to get another third member and set it up with 3.73 now. The mph is getting up there. Before I put the cam in I had to go into overdrive. Now that I'm turning the motor higher I'm going to try to hold it in drive.

 

Looks like I will be going with 3.73s

I like seeing that you are getting good results out of that 3600vig, do you ever wish it was the 3200 vig. Everyone swears the 3600vig is too loose for spray? Whats your take on it?

 

I love my 3600 vig. It works decent on the street. Noticable but not bad like some people say a 3600 is. I would say it flashes to about 4200 on a 150 shot. When I stage I hold it at about 1500 and flash it. I hit it twice with a 200 shot and the second time was the end of the 10 bolt. I would say it might have went to about 4500 on the 200 shot (hard to say for sure). At times I wish I had got a 4000 or a little more.
Mine is the 3 disk lock up convertor. I also lock it at 90 mph in drive.
I don't see any problems spraying a 3600. If it is going to 4500 on the 200 shot I would say I'm not over the peak torque of the motor.

I'm running more stock parts then bolt ons and on the dyno with the convertor unlocked I made 320rwhp on the motor and 440 rwhp on a 150 shot (.062 nitrous jet @ 950PSI).

The car went 11.20 @ 121 mph right after it came off the dyno (on the 150 shot).

 

Just what I wanted to here...
Any differences between the 3-disc vs the single disc?

 

With high horsepower motors the single disc lockup doesn't last as long if your locking it up at WOT. Its $600 or $1000 most people can get by on a single disk lockup. Some of the FI guys that lock up the convertors go for the three disk.

 

Your very basic setup at the same raceweight runs exactly the same as the 460 hp auto above. Odd?

 

I ran 121.76 MPH with M/T 255/50/16 drag radials. My car weighs 3550 with me in it. I picked up 2 tenths and 2mph when I switched from a VIG3800 to the TCI4400.

BTW, it was 75 degrees.

 

4.10s will pull you all the way through your cams power band with a 26 inch tall tire. Most cams peak around 6300 and pull good up to 6800-7000 rpms before they drop off. With 4.10s in my old cam only setup i would cross at 6850 in the 1/4 milking everything the MS3 cam had but the stock rod bolts came apart after a short time from doing this with 105,000 mile motor.

3.73s will cross you around 6400-6500 on a 26 inch tire. Most of the A4s running 120+ traps run a 4000-4400 stall with 4.10s and a M/T DRs with a raceweight around 3350 with driver and some get lighter. My old cam only MS3 setup hit 120 in october air here in the south with a 4.10 gear/Yank PT 4400 and a raceweight of 3370 lbs with me. Get the car to 60ft. in the high to mid 1.4s and your mph and ET will be where you want it.

 

yea, your getting a lot of help
most people are tight lipped with there combos
for no reason, you can buy horse power with a credit
card. so who cares. you need to realized that cam, compression
and cylinder heads make power, your efficacy of your car will dictate
how much power you will need. example a 9 inch ford uses more power
then a 12 bolt rear. when I change my oil I see a diff in et and mph
head flowing 270 cfm at your full lift will get you there. the more
cam use, the higher the rpm band will be. and your horsepower will
follow. you have to have enough compression to offset the overlap
and build cylinder pressure. questions like how far you drive this car, how many times a week.are important. weekend only and short drives or
track only are the best way to build a motor with a lot of power.
your converter must be loose, in my book the looser the better. a 5500 stall 8 inch converter will be way more efficient then a 10 inch 4000 stall. not just in 60 foot times, but in mph. use a large camshaft, no less then 240-245 @ .050 , with at least 10:5:1 compression. heads that work, a large stall.
you should easy get by 120, and approach 125. shoot for 100 mph in the 1/8
motors are motors, the more you squeeze and get in and out, the faster you
will go. im going to list my whole motor here, now realize its a 400 sbc gen1
but you get the picture.

406 sbc
12:1
pro ported iron 220 heads 286 cfm @ .600 lift
solid roller 270/278 @ .050 .666 lift
1 3/4 headers
glide with 8 inch converter 5500 stall
4.10 gear with 29.0 tires
3300 lbs with driver
10.52 @ 127 all motor, 6.69 @ 103 in 1/8
the motor goes threw at 6500 rpm's
hope this helps
email me @ zaman406@aol.com
PS . I have a ls1 2000 z28 also

 

I went 11.3@121 mph on 26's... I was dynoing around 430rwhp. I went 11.0@122mph at 450rwhp with 28's 60fting a 1.50. Car had the same weight reduction as the author of thread plus an iron block and a 6pt roll bar.