Last Saturday night, I am at a local meet and this guy comes up to me and asks me if he wants to race. He mentioned that he just raced a 350z the night before and it was dead even. So I say sure.

The first run was from a 10 MPH roll to 100 MPH. I absolutely kill him by 5 car lengths.

The second run was from a stop. Beat him again, but not as bad -- by about 4 car lengths.

I wish I had a picture of his face after we pulled over. "WHAT IN THE WORLD DID YOU DO TO YOUR CAR!!!". Before we raced, he never thought to ask if I was modded. If he asked, I would have told him that I have Stillen Exhaust, Injen CAI and tweaked ECU

I really want to find a Mustang Bullitt to race now

I will be taking my car to the track on March 30 (provided there isn't any snow). I am hoping to run somewhere between a 14.4 - 14.6. At 6,000 feet elevation, that is not bad for a 350Z. The general rule of thumb is add .15 seconds for every 1,000 feet to your quarter mile time from the base sea level times.

 

Nice Kill


What have you tweaked on your ECU??

Later
Aceman

 

air/fuel mixture is more lean and timing is advanced by 5 degrees.

 

Im not real familar with messing with the air/fuel mixture and the timing. Could you explain it for me in more detail how it is done. And what kind of gains do you think you get with this.

Thanks

later
Aceman

 

Well, I am lucky. An acquaintance of mine has the "Consult" device which is the device used to program the ECU. He plugged it in and made the adjustments.

Here is a printout of the settings:

Corrected IGN TIM: 5 degrees
ENG SPEED: 838 RPM
Corrected IDL RPM: 175 RPM
COOLAN TEMP/S: 192 Degrees farenheit
CLSD THL POS: ON
IGN TIMING: 17BTDC

The results is better low end due to the more lean air/fuel mixture and a lot better top end due to the advanced timing.

 

If you lean it out too much you will blow your motor. Just a FYI

Good kill

 

My apologies, I mis-stated something. The ECU wasn't modified until two days after I ran the Mustang. It would be interesting to run him again!

 

The 350Z's VQ is WAY rich from the factory, you should have smelled my exhaust after my dyno pulls 2 weeks ago. I don't think leaning out the A/F mixture with a consult device would lean the mixture enough to possibly destory the motor.

 

Never mind...

 

Hmmm...is your aquaintance a Nissan Tech?

 

Yes -- Nissan Master Technician

 

Are you sure? 4 or 5 car lengths on a Mustang GT is huge. I like to think I'm a good driver and that I'm pretty quick. But, there is no way I could pull 4 or 5 car lengths against a decent driver in a Mustang GT. I could see 1 or 2. 4 or 5 is sounding like...well for lack of a better phrase, ********. So, the question is, you sure it was a Mustang GT and if so, was it a late model?

 

Yes, I am 100% absolutely positive. I was talking to the guy before and after the race. With the mods that I have, not sure why you think that is bs??? He runs a 14.89 at the track and I am expecting mid 14's, low 14's if I am lucky, so that equates to about 4-5 cars difference.

 

I dunno man. I haven't raced a Mustang GT in my Z yet but if that car is anything remotely close to the Camaros I've raced, I have a hard time seeing 4 or 5 car lengths. That's a lot of distance.

I'm not saying it's BS cause frankly I don't know. But, the Mustang GTs I've seen are pretty quick and I have a hard time seeing myself taking one by that much distance. If you did it's all good but it just seems like a lot.

 

well if you mean just a regular GT, not a bullit or cobra, than this is about right on. Road and Track lists the 260hp GT as pulling a 14.7 sec 1/4mi. Figuring the drag rule of thumb that every tenth is a car legnth, a Z running 14.2 should be 5 legnths no sweat.

 

LS1 camaro = 290-305whp STOCK
Mustang GT = 220-230whp STOCK

not even REMOTELY close....

 

Yea I think 4-5 cars is A LOT; especially if you both were starting out at 10mph roll. For you to put that much distance on a new GT Mustang would take a lot more power than what you are putting down now, I guarantee that!

I know Mustang GT's stock are dogs but they are not that slow.

I put about 4-5 cars on a slightly modded GT from a dead stop and I can put about a little over 2 1/2 cars on a 350Z. That is from a stop, from a roll, give and take a car or so.

 

It ain't a Bullitt, but i'll be your huckleberry.

Good kill, but street racing don't mean jack. When and if you make it out to the track, make sure you let us in on your times.

 

Well, obviously, that is a matter of opinion. Depends on where you do most of your racing