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Adventures in weight reduction

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Old 03-09-2005, 12:37 AM
  #41  
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aahahahahahahahahahaah


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!
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Old 03-09-2005, 05:46 AM
  #42  
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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.
you cant take the glass out. They will not let you race if you dont have your windows up let alone with no glass in any windows.
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Old 03-09-2005, 06:00 AM
  #43  
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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
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Old 03-09-2005, 09:04 AM
  #44  
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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
if you get some lexan. Can you tell me where you got them, thanks.
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Old 03-09-2005, 09:16 AM
  #45  
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forget a seat, throw a milk crate in there to sit on
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Old 03-09-2005, 09:56 AM
  #46  
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Originally Posted by chenzarino
forget a seat, throw a milk crate in there to sit on
we tried that, but it's hard to push the cltuch with no back support...
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Old 03-09-2005, 10:05 AM
  #47  
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It's just depressing to look at that thing. Maybe that will be diffrent once you get to the track.
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Old 03-09-2005, 10:47 AM
  #48  
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Originally Posted by sbddude
It's just depressing to look at that thing. Maybe that will be diffrent once you get to the track.
Have you seen drag cars? some are 0% of what the original car there called.
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Old 03-09-2005, 11:58 AM
  #49  
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Originally Posted by sbddude
It's just depressing to look at that thing. Maybe that will be diffrent once you get to the track.
well this will make you feel better. Look at the pictures. In one you will see that the hood is bent up, and under that there is a little damage to the radiator support. I hit a deer back before Christmas, and since the car had 200K+ miles on it my insurance company decided to total it. Now I had just rebuilt the tranny and put a new engine in so I asked if they would sell me the salvage. They sold it to me for $200. Since then I have sold around $1000-1500 worth of aprts off of it. This is a free toy at this point. The car will look better in it's finished state, though it will be nothing more than a drag car. Just as people have taken turbo charging to the extreme in Hal and Mardi have taken turbo charging to the extreme, and now some are taking NA tuning and engine swaps to the extreme, I want Ben and myself to take weight reduction to the extreme. After that I very well may slap a 150 shot on the car and try to be the first Max in the 10's, who knows?
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Old 03-09-2005, 12:23 PM
  #50  
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OMG- that is scary. That is a little extreme
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Old 03-09-2005, 07:02 PM
  #51  
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i wish i had a car like that i could play around with. maybe in the next couple decades...
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Old 03-09-2005, 07:59 PM
  #52  
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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.
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Old 03-12-2005, 01:37 AM
  #53  
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if a cop does stop you just be like "i dunno what happened i ran inside to get a soda and came out and it was stripped...."
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Old 03-12-2005, 08:13 AM
  #54  
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Originally Posted by mzmtg
we tried that, but it's hard to push the cltuch with no back support...
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Old 03-12-2005, 08:17 AM
  #55  
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so what did it run at the track yesterday?
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Old 03-12-2005, 08:20 AM
  #56  
2060lbs and falling...
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I don't know about open manifolds. I would be worried about melting wiring and other stuff. Open y for sure though.
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Old 03-13-2005, 10:14 AM
  #57  
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yeah there is no reason to build/bend an exhaust to go all the way back to the car. get it as short and least restrictive as possible. how about exiting right behind front wheels
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Old 03-13-2005, 11:39 AM
  #58  
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i dunno about you guys but its freakin loud with no y-pipe. its deafening. thatd be crazy to see driving around tho. youd drown out those noisy domestics and harleys heh.
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Old 03-13-2005, 12:34 PM
  #59  
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Man... i though I was bored.... this is my first venture to the general maxima forum and it has been an entertaining one. Good luck!!
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Old 03-13-2005, 03:02 PM
  #60  
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That is freaking awesome, I wish I bought back my 2nd gen when it was totalled and stripped it out like that. Keep us updated
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Old 03-13-2005, 07:15 PM
  #61  
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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.
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Old 03-14-2005, 05:49 AM
  #62  
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Originally Posted by IceY2K1
Also, forget the exhaust and just leave open manifolds.
O2 sensor feedback? The ECU would go into safe-mode and run rich as hell, killing HP.
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Old 03-14-2005, 06:50 AM
  #63  
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looks fun can't wait to hear about the times
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Old 03-14-2005, 07:41 AM
  #64  
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Originally Posted by maximazation
check this link out

http://stuff.onyxs10.com/jokes/sentra/

stripped sentra running 14s.....STOCK
do that to an M5 and it'll smoke a Ferrari lol
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Old 03-14-2005, 07:51 AM
  #65  
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Originally Posted by busterdawg22
do that to an M5 and it'll smoke a Ferrari lol
An M5 will smoke a Ferrari anyway.

Just pick the right M5 and the right Ferrari...
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Old 03-14-2005, 10:04 AM
  #66  
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Originally Posted by nismology
O2 sensor feedback? The ECU would go into safe-mode and run rich as hell, killing HP.
That is why my idea would work. There is much controversy about the o2's. Apparently if both fronts are working properly, disconnecting the rear doesn't do anything. I wish that were true for the fronts. I guess just do it first without the bungs and if it doesn't work toss some bungs in there.
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Old 03-14-2005, 10:40 AM
  #67  
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Originally Posted by Broaner
That is why my idea would work. There is much controversy about the o2's.
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.
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Old 03-14-2005, 03:13 PM
  #68  
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Originally Posted by mzmtg
An M5 will smoke a Ferrari anyway.

Just pick the right M5 and the right Ferrari...
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
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Old 03-14-2005, 03:52 PM
  #69  
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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
A m5 can go high 12's same as modena and actually i saw a bmw test of a m5 without speed govener and it went 198mph with no farther mods. Modena cant touch those speeds.
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Old 03-14-2005, 06:16 PM
  #70  
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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.
Thanks smarty pants. I was refering to the controversy about whether or not the rear O2 will throw a code or go into safe mode when completely removed. 95CustomMax(Nick) has been running around for a while with the rear disconnected. He says he has no codes and many can vouch that he ran a 14.4 with that setup. I had differening information because when mine was disconnected it threw codes and ran in safe mode. With the help of several we have come up with the theory that with properly functioning front o2's a disconnected rear will cause no issues. I'll be testing this out shortly. I have two new fronts ready to go in when I put everything back together.
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Old 03-15-2005, 07:19 AM
  #71  
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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.
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Old 03-15-2005, 07:30 AM
  #72  
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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.
We could start by hooking it back up.

Who knows?
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Old 03-15-2005, 07:41 AM
  #73  
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Originally Posted by mzmtg
We could start by hooking it back up.

Who knows?
yeah we car try it, but I am still leaning towards those two green/red wires to the fuel pump being backwards.
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Old 03-15-2005, 07:45 AM
  #74  
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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.
If you look at the wiring diagram, I dont think swaping those wires makes a difference...

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Old 03-15-2005, 07:47 AM
  #75  
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Originally Posted by mzmtg
If you look at the wiring diagram, I dont think swaping those wires makes a difference...

can you send me a link to the entire diagram?
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Old 03-15-2005, 07:58 AM
  #76  
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But that only shows one green/red wire going to the fuel pump. Or is there two wires and the diagram just does not show it? I see where the two are jumped from the drop resistor and the FPCM.
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Old 03-15-2005, 08:01 AM
  #77  
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Ah! It also shows that wire going forward to the #2 pin on the ECU. I bet we cut that one.
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Old 03-15-2005, 08:27 AM
  #78  
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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.
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Old 03-15-2005, 08:50 AM
  #79  
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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.
Yeah we are keeping track of all of it. Can you believe that shifter is 2.5" shorter than stock? I started out hoping for around 2500lbs, now I am thinking more like 2200. I just can't wait to get her out and see how she does.
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Old 03-15-2005, 03:12 PM
  #80  
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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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