12's or bust!
#1
12's or bust!
I have an 08 FX4 Screw that I just recently dropped with the Saleen sport suspension and am running some 305/50's on 20x10 Ford Racing Lightning wheels. I had the intent of throwing a good supercharger or turbo on it to attain roughly 500rwhp and 500rwtq. I was hoping that that combo, along with the 4.88 gears I have in it, some good slicks and possibly a 4 HI launch would net me high 12 second time slips. Those hopes were recently crushed by a fellow member who thinks(knowledgably) that I would only see high 13's/low 14's with that set-up. It's got me thinking twice about the path take with this truck. It's my DD and it will stay that for the next 4-6 years.
Can anyone add some advice or knowledge to this? Are 12's attainable or not?
Thanks in advace!
Can anyone add some advice or knowledge to this? Are 12's attainable or not?
Thanks in advace!
#3
#4
As I've stated, You will have a hard time hitting those numbers in your truck. Nothing is impossible.
I do think that FX4matt is running 13.7's in his screw 4x4.
So I very might could be wrong, and 500/500 in the right conditions would get you a high 12. Even I think though that is going to be lots of stress on a stock truck, and to get that to last it's going to cost some serious mod $$$
I do think that FX4matt is running 13.7's in his screw 4x4.
So I very might could be wrong, and 500/500 in the right conditions would get you a high 12. Even I think though that is going to be lots of stress on a stock truck, and to get that to last it's going to cost some serious mod $$$
#5
#6
If conditions are right, you might get that high 12 a few trips down the track. A new engine/transmission/transfer case will probably come soon after.
#7
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#8
I would think that with 450rwhp/450rwtq, 4.88's and 28" slicks, I'd be able to hit 12's and not break much.....am I way off here?
I guess what I'm getting at is....What makes your truck so different than mine that it can run 13.6 with what you have and I am pushing it to think I'd be able to run 12's with more power and torque, steeper gears and smaller tires?
#9
Completely different truck now in virtually every aspect...
#10
$$$$ along the way for broken stuff is a sure thing if you ask me.
#11
As I've stated, You will have a hard time hitting those numbers in your truck. Nothing is impossible.
I do think that FX4matt is running 13.7's in his screw 4x4.
So I very might could be wrong, and 500/500 in the right conditions would get you a high 12. Even I think though that is going to be lots of stress on a stock truck, and to get that to last it's going to cost some serious mod $$$
I do think that FX4matt is running 13.7's in his screw 4x4.
So I very might could be wrong, and 500/500 in the right conditions would get you a high 12. Even I think though that is going to be lots of stress on a stock truck, and to get that to last it's going to cost some serious mod $$$
#12
JDM/MMFF claim their saleen truck runs 12.8's and claim 475 rwhp at only 12# on a saleen blower and just bolt ons with stock internals, Yeah OK. Personally I think they have done a lot more to the engine and they are stayin tight lipped about it. Even if their truck is a 2wd scab, your gonna need more than 475 whp to run 12.8's with a 5500# truck on 23" wheels. JDM has a video on their site with that truck running high 12's so I know it can be done, and they claim they tow with this truck and have put over 40K miles on this setup.
Try to find an E.T. calculator that lets you input weight and desired e.t. and will tell you hp needed, put in 6K# for the weight and 12.99 for desired e.t. and you will be surpised at the required hp it spits out.
Try to find an E.T. calculator that lets you input weight and desired e.t. and will tell you hp needed, put in 6K# for the weight and 12.99 for desired e.t. and you will be surpised at the required hp it spits out.
Last edited by 05RedFX4; 08-12-2009 at 05:16 PM.
#15
JDM/MMFF claim their saleen truck runs 12.8's and claim 475 rwhp at only 12# on a saleen blower and just bolt ons with stock internals, Yeah OK. Personally I think they have done a lot more to the engine and they are stayin tight lipped about it. Even if their truck is a 2wd scab, your gonna need more than 475 whp to run 12.8's with a 5500# truck on 23" wheels. JDM has a video on their site with that truck running high 12's so I know it can be done, and they claim they tow with this truck and have put over 40K miles on this setup.
Try to find an E.T. calculator that lets you input weight and desired e.t. and will tell you hp needed, put in 6K# for the weight and 12.99 for desired e.t. and you will be surpised at the required hp it spits out.
Try to find an E.T. calculator that lets you input weight and desired e.t. and will tell you hp needed, put in 6K# for the weight and 12.99 for desired e.t. and you will be surpised at the required hp it spits out.
I looked at 4 different et calcs. just now and they all stated 541rwhp to get to a 12.99. That doesn't take into consideration overgearing and smaller slicks though does it?