KYSpeedFreak

I am currently running 3.23 gears along with a Yank ST3500. I am installing the TR230 cam in the next couple of weeks along with a 4400 stall of some kind. Yank or TCI. So my question is, will I benefit any from the 3.73s over my current 3.23s with this setup? Will I benefit any from a stop at the track or from a roll on the street?

All help is appreciated..

Thanks

fastlif

iTrader: (1)

I am onmy second set of 3.73's and both are noisey...not REAL noisey but I wish I had gone back to stock gears the second time. I have seen 0 improvement in ET or MPH. BTW I have 224/224 561-561 MTI stg 2 heads.

Patrick G

iTrader: (14)

You will pick up .05 sec in ET (that's half a tenth) and 1 mph by swapping to 3.73s with the ST3500. Racing from a roll, you will definitely be faster with 3.73s as long as you don't downshift into 1st gear. Do that on the street and you will roast your tires. 3.73s with ST3500 on street tires is not a good street racing combination when racing from a dead stop. You'll never be able to go WOT until right before the 1-2 shift.

Speartech

iTrader: (14)

I think it comes down to what mods you have planned for the future, and the main use of the car. I think my favorite combination was 2.73's with the YTP4400!! The car ran consistant 11.9's and on the street I could recover first gear and wind it out making the car practically unbeatable!
I then switched to 3.73's and with that change only, the car dropped into the 11.8's (not a biggie); but on the street first gear is now practically unusable, even on Nittos. BUT, as I plug away at little things, the car is now running consistant 11.72's and I think the gears are part of the equation to keep going quicker. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

So if street racing is the main goal with a strip visit every now and then, you don't need any lower gears, but if it's in your blood to keep going quicker, the 3.73's will be needed at some point. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

I know the Yank is VERY efficient; I don't know about the TCI, so I don't know how that will come into play.

Dom

iTrader: (2)

I have 4.10s now and I'm planning on getting a big stall. What difference will the following two setups have?

1. 4.10s and big stall
2. 3.73s and big stall

No street racing, no racing from a roll, just pure 1/4 mile racing at the track. NA only.

KYSpeedFreak

Okay well here is another question. I do much racing from highway rolls, just driving around on the weekends and such. From say a 55 roll, what kind of difference am I gonna have with the 3.23 and a 4400 stall and a 3.73 with the 4400 stall. Is it gonna be a major difference? Fender length quicker? Couple of cars quicker?

Considering we will be going from a 55 roll. would 4.10s make it even quicker? Keep in mind that its going to be the TR230 cam so the RPMS will be higher than stock. around 6700 shift point and 6800 rev limiter.

Ragtop 99

iTrader: (7)

11Sec:
Depends on where the race ends. 3.73s pull up to about 125 mph with your shift point, allowing for some converter slip. If you go higher speeds you'll have to go into 4th with 3.73s whereas 3.23s can pull 150 mph in 3rd.

I fear not the M6 with my 3.73s and YTP 4200. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

KYSpeedFreak

Ragtop - More than likely I will be going with the 3.73s then. Im kinda wondering what made you go with the YTP 4200 over the 4400?? Was there any reason that you chose this converter over the 4400?

Patrick G

iTrader: (14)

There are diminishing returns after 4400 stall. If your motor is to be shifted at 7000 rpms or higher, then at 4600 would make you quicker. If your shift points will be closer to 6600-6800, then the 4400 would be perfect.

KYSpeedFreak

Another question is.. would it benefit me to go higher than the 4400 stall? I had originally planned on spraying this combo, but I think Im gonna stick with all motor. So would there be any advantage to going to a higher stall than the 4400 stall?