1/4 Mile - 13.7 Secs with traction control

[greasemonkey]

Alright guys. Well I did one better last Wednesday night

My first run was the best run. 12.27 @. 122mph. Stalled to 2000 rpm and almost foot flat to the floor straight away. It went off the line smooth and just continued.

Second pass I floored it from the start line and took the converter up to 2300rpm. Car didn't like it. Felt like the torque converter or gearbox slipped and then once it came back to norm, continued hard down the line. Got a 13.1 at 117mph.

Third pass I put the transmission into sports mode. Not as powerful. I remember the person I purchased the car off said that the tune was in Drive after I ran. Was good overall but a 12.9 at 120mph.

I think I need a torque converter built for the box. Do you need to build the box for the converter? Something that can handle 420kw smoothly everyday pass and run?
 

Edited 02/08/24 07:42 AM by greasemonkey

[Puffwagon]

The trans might need some tuning. Talk to your local barra specialist and get them to set it up for drag racing. Tell them how much you want to stall it up so they can adjust it accordingly.

 

For reference, at one point my territory did a 12.29 at 110mph with a 1.85 60ft and a 11.57 at 120mph with a 1.94 60ft.

 

Good result there though mate, 12.2 is pretty quick, just gotta get it dialled and you'll be in the 11s in no time!

 

Edit: RVO can get you a solid trans and converter package that comes tuned, without breaking the bank.

Edited 02/08/24 09:59 AM by Puffwagon
Why not?

[greasemonkey]

Thanks Puff for the info. If I could run into the 11s that would be unreal. My 60ft is slower than yours but maybe a good stall converter and trans (tune as well) would help that problem. It is really interesting about the mph reading and how that is a guide for times in a 1/4 mile. Trans and diff gearing combinations and tuning is so important here, with 1/4 drags.

I love the fact that the FG XR6 turbo it is a street car, a great 6 speed box and don't want to lose that aspect of being extremely streetable. That's what I love about the xr6 turbo. Good luck having that with a N/A V8 with heads and cam work.

I will contact RVO at some point about $$$. I'd have to ship my trans down to Melbourne or if they do the tuning, leave the car with them.

The only thing I notice is that if I really dig in, foot to the floor, my car blows white smoke somewhat each time the trans changes gear (under full boost). Doesn't burn coolant, doesn't burn oil etc. Its like a restriction almost.

You can watch it here. Should I be worried? 
 

Edited 03/08/24 03:00 AM by greasemonkey