Adventures in weight reduction
#41
aahahahahahahahahahaah
![ThumbsUp](https://maxima.org/forums/images/smilies/thumbsup.gif)
With a race weight of around 2500 lbs (incl driver) on stock motor/ECU/everything, CarTest says 13.8 @ 97.8 with a 2.0 60'. If you can pull a 1.8-1.9 60' you could very well get into the low/mid-13's.
Good luck!
![Laugh out loud](https://maxima.org/forums/images/smilies/lol.gif)
![Big Grin](https://maxima.org/forums/images/smilies/biggrin.gif)
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With a race weight of around 2500 lbs (incl driver) on stock motor/ECU/everything, CarTest says 13.8 @ 97.8 with a 2.0 60'. If you can pull a 1.8-1.9 60' you could very well get into the low/mid-13's.
Good luck!
![naughty](https://maxima.org/forums/images/smilies/naughty.gif)
#42
Originally Posted by Lytheum
you guys should remove all the glass...im sure that weighs a good amount. thats if you havent planned to allready. lol...good luck getting that to a track unless you take it on a trailer. i can just see a cop glance inside that thing.
#43
Just to answer a few questions...
We arent taking the damn doors off. It's still going to be a whole car. Hopefully, it will still look almost stock from the outside. We may replace the door glass with lexan.
At 2500 pounds, a 13 sec time (13.999) is doable on slicks.
We shouldn't have any problems driving to or getting into the track. The track is bout 4 miles from my house and they they have ZERO tech inspection once we get there.
Ans as we both said before, we know there is still a lot left to do, I just wanted to share some pics I thought were interesting. Jeez, you guys are like jackals
We arent taking the damn doors off. It's still going to be a whole car. Hopefully, it will still look almost stock from the outside. We may replace the door glass with lexan.
At 2500 pounds, a 13 sec time (13.999) is doable on slicks.
We shouldn't have any problems driving to or getting into the track. The track is bout 4 miles from my house and they they have ZERO tech inspection once we get there.
Ans as we both said before, we know there is still a lot left to do, I just wanted to share some pics I thought were interesting. Jeez, you guys are like jackals
![Big Grin](https://maxima.org/forums/images/smilies/biggrin.gif)
#44
Originally Posted by mzmtg
Just to answer a few questions...
We arent taking the damn doors off. It's still going to be a whole car. Hopefully, it will still look almost stock from the outside. We may replace the door glass with lexan.
At 2500 pounds, a 13 sec time (13.999) is doable on slicks.
We shouldn't have any problems driving to or getting into the track. The track is bout 4 miles from my house and they they have ZERO tech inspection once we get there.
Ans as we both said before, we know there is still a lot left to do, I just wanted to share some pics I thought were interesting. Jeez, you guys are like jackals![Big Grin](https://maxima.org/forums/images/smilies/biggrin.gif)
We arent taking the damn doors off. It's still going to be a whole car. Hopefully, it will still look almost stock from the outside. We may replace the door glass with lexan.
At 2500 pounds, a 13 sec time (13.999) is doable on slicks.
We shouldn't have any problems driving to or getting into the track. The track is bout 4 miles from my house and they they have ZERO tech inspection once we get there.
Ans as we both said before, we know there is still a lot left to do, I just wanted to share some pics I thought were interesting. Jeez, you guys are like jackals
![Big Grin](https://maxima.org/forums/images/smilies/biggrin.gif)
#48
Originally Posted by sbddude
It's just depressing to look at that thing. Maybe that will be diffrent once you get to the track.
#49
Originally Posted by sbddude
It's just depressing to look at that thing. Maybe that will be diffrent once you get to the track.
#52
Man that would be a BLAST....
Good luck guys and you can get clear lexan like stuff from Home Depot IIRC. Once you remove the side glass, just drill holes and use zip ties to hold it in.
Also, forget the exhaust and just leave open manifolds.
Good luck guys and you can get clear lexan like stuff from Home Depot IIRC. Once you remove the side glass, just drill holes and use zip ties to hold it in.
Also, forget the exhaust and just leave open manifolds.
![Cool](https://maxima.org/forums/images/smilies/cool.gif)
#61
I just got an idea for the exhaust. How bout running downpipes off each header and just ending them as they get down to the crossmember? They would be very easy/cheap to fab and would solve the melting/engine bay heat issue. The gains would also still be there cause there is no joining of the two banks. It would be like equal length headers but better.
#64
Originally Posted by maximazation
#66
Originally Posted by nismology
O2 sensor feedback? The ECU would go into safe-mode and run rich as hell, killing HP.![slant](https://maxima.org/forums/images/smilies/slant.gif)
![slant](https://maxima.org/forums/images/smilies/slant.gif)
#67
Originally Posted by Broaner
That is why my idea would work. There is much controversy about the o2's.
It's no secret what the different sensors are used for.
The front sensors are used to directly monitor exhaust O2 content to determine air/fuel ratio. The rear sensor monitors the O2 levels in the exhaust after it has been through the catalyst. This info is compared to the info from the front sensors to determine catalyst performance. Degradation of the catalyst is recorded for the first few thousand miles of vehicle use. This rate of degradation is applied to the entire life of the car (flawed technique, but simple and still used). From this pre-determined acceptable rate of degradation, overall catalyst performance is determined. If the catalyst is found to be degrading at a faster rate than initially calculated, the CEL comes on.
#68
Originally Posted by mzmtg
An M5 will smoke a Ferrari anyway.
Just pick the right M5 and the right Ferrari...
Just pick the right M5 and the right Ferrari...
My brother walked away from an 02 360 Modena F1 shift with Tubi exhaust and an intake on the highway. YES A MODDED FERRARI!!!! This thing sounded insane, almost like a bike on the highway.
btw-my bro got a 93 Lexus SC300 with a 2jzgte swap (MKIV supra tt) and put in a T-66 turbo makes 500whp on pump.
-Paul
#69
Originally Posted by TheMax95
I think he means a 360 or Testerosa. They are not "m5 territory", which reminds me of something ot:
My brother walked away from an 02 360 Modena F1 shift with Tubi exhaust and an intake on the highway. YES A MODDED FERRARI!!!! This thing sounded insane, almost like a bike on the highway.
btw-my bro got a 93 Lexus SC300 with a 2jzgte swap (MKIV supra tt) and put in a T-66 turbo makes 500whp on pump.
-Paul
My brother walked away from an 02 360 Modena F1 shift with Tubi exhaust and an intake on the highway. YES A MODDED FERRARI!!!! This thing sounded insane, almost like a bike on the highway.
btw-my bro got a 93 Lexus SC300 with a 2jzgte swap (MKIV supra tt) and put in a T-66 turbo makes 500whp on pump.
-Paul
#70
Originally Posted by mzmtg
What controversy?
It's no secret what the different sensors are used for.
The front sensors are used to directly monitor exhaust O2 content to determine air/fuel ratio. The rear sensor monitors the O2 levels in the exhaust after it has been through the catalyst. This info is compared to the info from the front sensors to determine catalyst performance. Degradation of the catalyst is recorded for the first few thousand miles of vehicle use. This rate of degradation is applied to the entire life of the car (flawed technique, but simple and still used). From this pre-determined acceptable rate of degradation, overall catalyst performance is determined. If the catalyst is found to be degrading at a faster rate than initially calculated, the CEL comes on.
It's no secret what the different sensors are used for.
The front sensors are used to directly monitor exhaust O2 content to determine air/fuel ratio. The rear sensor monitors the O2 levels in the exhaust after it has been through the catalyst. This info is compared to the info from the front sensors to determine catalyst performance. Degradation of the catalyst is recorded for the first few thousand miles of vehicle use. This rate of degradation is applied to the entire life of the car (flawed technique, but simple and still used). From this pre-determined acceptable rate of degradation, overall catalyst performance is determined. If the catalyst is found to be degrading at a faster rate than initially calculated, the CEL comes on.
#72
Originally Posted by plurco
well I don't think it comes from having the rear O2 disconnected, but the car is running like shyt right now. Gotta get this figured out, and soon.
Who knows?
![got me](https://maxima.org/forums/images/smilies/ne_nau.gif)
#74
Originally Posted by plurco
yeah we car try it, but I am still leaning towards those two green/red wires to the fuel pump being backwards.
![](http://img.photobucket.com/albums/v507/mzmtg/fp.gif)
#78
these photos are fantastic ! look at that truck shifter in photo 2 ! lol ! super job and sure they will allow this car to run at the track, i dont see anything wrong and neither will they !!
you guys should keep this thread going throughout the whole process (with photos, video, and info bits) and by all means get some cheap bathroom scales out there and log the weight of each piece.
you guys should keep this thread going throughout the whole process (with photos, video, and info bits) and by all means get some cheap bathroom scales out there and log the weight of each piece.
#79
Originally Posted by the chariot
these photos are fantastic ! look at that truck shifter in photo 2 ! lol ! super job and sure they will allow this car to run at the track, i dont see anything wrong and neither will they !!
you guys should keep this thread going throughout the whole process (with photos, video, and info bits) and by all means get some cheap bathroom scales out there and log the weight of each piece.
you guys should keep this thread going throughout the whole process (with photos, video, and info bits) and by all means get some cheap bathroom scales out there and log the weight of each piece.
![Smilie](https://maxima.org/forums/images/smilies/smile.gif)
#80
i raced the chariot once with "truck shifter mod": which is what i call removing the center console, i believe i knocked off another 7 lbs by removing it. i forget the story but i needed to find someplace to take a few pounds off to run around the same weight and ended up leaving the center console home ! lol !
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MatthewsMaxima
7th Generation Maxima (2009-2015)
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09-11-2015 03:21 AM