Calibration for 3.73's?
04-19-2007, 02:26 PM
#1
Calibration for 3.73's? Well my gears whine and as you know I am picky as hell so out they are coming. I would like 3.73's or 3.90's(if they make those for our cars?) but AM NOT! WILLING to pay $400 for a handheld tuner just to correct my speedometer. I once thought I saw a $50 module or something from SLP that did it but I cant find it anymore 
If I cannot re-calibrate for under $75ish I am just putting new 3.42's in.
(Pinion bearing went out, gears came out and bearing was replaced and obviously the thing now has 2 wear-patterns and whines and I do not like it).
If I cannot re-calibrate for under $75ish I am just putting new 3.42's in.
(Pinion bearing went out, gears came out and bearing was replaced and obviously the thing now has 2 wear-patterns and whines and I do not like it).
04-19-2007, 02:37 PM
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noise
Originally Posted by BLKWS.6
PS. Who makes the QUIETEST gears?
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04-19-2007, 03:18 PM
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Originally Posted by blue99SS
The PCM's are definately removable, I sent mine to TSP to get my O2's turned off.
How far off will the speedo be with 4.10's in an M6? Sorry to highjack!
How far off will the speedo be with 4.10's in an M6? Sorry to highjack!
04-19-2007, 05:03 PM
#13
Originally Posted by BLKWS.6
Going from 3.42 to 3.73...How much ET/Trap will I lose/gain?
04-19-2007, 05:42 PM
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Originally Posted by BLKWS.6
Sorry to be dense, I thought the PCM's in our cars werent removable? This is misinformation I guess. How involved is that?
Ever heard of PCM4Less?
They are mail order tunes, ship them your computer and they load it up with **** and send it back!
04-19-2007, 06:32 PM
#16
Originally Posted by BLKWS.6
Sorry to be dense, I thought the PCM's in our cars werent removable? This is misinformation I guess. How involved is that?
04-19-2007, 08:17 PM
#17
Originally Posted by BriancWS6
As already mentioned, yes, they are removable. In fact, its very simple. On the pass side, just under the cowl, there will be two bolts to loosen. Then you un-plug the harness. After that it can be removed from it's holder.
Would I be able to just drive to Houston and have LPE do it or something? I mean, it wouldnt take but a second. In fact, I am going to visit them Saturday (Friend has GTO that needs a tune) and I will ask about it.
The MAIN REASON I am changing gears is as mentioned, the pinion bearing shitted out on me and after they re-shimmed the gears they whine a bit b/c of 80K miles of wear in 1 pattern and now it is changed. What is the likelyhood the new gears will whine if set-up correctly? They shouldnt, right?
04-19-2007, 08:32 PM
#18
Ok, I looked at some gearing/rpm specs and really like the shift points with 3.73's over the 4.10's. WIth 3.73's I will still retain my 162mph (limited) top speed in 5th as well as be able to utilize 4th gear in the 1/4 mile. What kind of performance gains in the 1/4 mile can I expect to gain from 3.42's to 3.73's? Also, I would assume on the highway from a roll I will do better than a stock M6 car at any given mph because I should have more horsepower at that speed as well. (Most highway punches WILL NOT force me to start in 4th and them in 3rd, so I should see a benefit, shouldnt I?)
04-19-2007, 09:33 PM
#19
I wouldnt pay 100 for a mail order speedo re-cal tune either. Just drive it to a place and let them plug in and fix it for you. If they are set up right, they shouldnt whine. After I set up my Motive 4.10s, they were quiet as could be, cruising, and coasting. It wasnt until I started beating the **** outta them after break in that they began to whine a bit on decel.
As far as gearing goes...you will NOT be dissapointed if you went 4.10s. I went from 12.5s in the 1/4, to 12.3s swapping from 3.42s to 4.10s. Just like they say its a waste to do 3.23s-3.42s in an auto, I say its a waste to do 3.42-3.73 in an m6. I have a buddy that did 3.73s and immediately took them out for 4.30s.
As far as utilizing 4th gear in the 1/4, the 4.10s were PERFECT for a stock or bolt-on car in the 1320. Any less gear is not optimum. I crossed the line with my shift-lite on, which was set to 5900.
As far as gearing goes...you will NOT be dissapointed if you went 4.10s. I went from 12.5s in the 1/4, to 12.3s swapping from 3.42s to 4.10s. Just like they say its a waste to do 3.23s-3.42s in an auto, I say its a waste to do 3.42-3.73 in an m6. I have a buddy that did 3.73s and immediately took them out for 4.30s.
As far as utilizing 4th gear in the 1/4, the 4.10s were PERFECT for a stock or bolt-on car in the 1320. Any less gear is not optimum. I crossed the line with my shift-lite on, which was set to 5900.
04-19-2007, 09:42 PM
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Originally Posted by BriancWS6
I wouldnt pay 100 for a mail order speedo re-cal tune either. Just drive it to a place and let them plug in and fix it for you. If they are set up right, they shouldnt whine. After I set up my Motive 4.10s, they were quiet as could be, cruising, and coasting. It wasnt until I started beating the **** outta them after break in that they began to whine a bit on decel.
As far as gearing goes...you will NOT be dissapointed if you went 4.10s. I went from 12.5s in the 1/4, to 12.3s swapping from 3.42s to 4.10s. Just like they say its a waste to do 3.23s-3.42s in an auto, I say its a waste to do 3.42-3.73 in an m6. I have a buddy that did 3.73s and immediately took them out for 4.30s.
As far as utilizing 4th gear in the 1/4, the 4.10s were PERFECT for a stock or bolt-on car in the 1320. Any less gear is not optimum. I crossed the line with my shift-lite on, which was set to 5900.
As far as gearing goes...you will NOT be dissapointed if you went 4.10s. I went from 12.5s in the 1/4, to 12.3s swapping from 3.42s to 4.10s. Just like they say its a waste to do 3.23s-3.42s in an auto, I say its a waste to do 3.42-3.73 in an m6. I have a buddy that did 3.73s and immediately took them out for 4.30s.
As far as utilizing 4th gear in the 1/4, the 4.10s were PERFECT for a stock or bolt-on car in the 1320. Any less gear is not optimum. I crossed the line with my shift-lite on, which was set to 5900.
I agree 100% with everything said above. You WONT be dissapointed with 4.10s. I have motives as well, and if set up properly they are as quiet as stock.