Crossfire SRT6 A place to discuss SRT-6 specific topics.

maybe we can get the 327 rear gear to work

Old May 27, 2010 | 09:34 PM
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Default Re: maybe we can get the 327 rear gear to work

we tried to recode the tcm with the limited codes but the 6 would not acept it,, we did put a tcm into a 6 from a charger srt8, the car started but would not go into gear, I have a spare tcm for my 6 if a limited wants to try it in a limited. i think we have to install the transmission, tcm, and rear diff from a limited and hope that would work. jim
 
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Old May 27, 2010 | 09:36 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by bmorgan
Also, just changing the gear ratio would have absolutly no effect on the rear wheels spinning at a different speed than the front wheels. LOL Unless, the rear wheels are breaking traction.
I do know that but, well heck, I think I had a brain fart.
 
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Old May 27, 2010 | 09:41 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by amx1397
we tried to recode the tcm with the limited codes but the 6 would not acept it,, we did put a tcm into a 6 from a charger srt8, the car started but would not go into gear, I have a spare tcm for my 6 if a limited wants to try it in a limited. i think we have to install the transmission, tcm, and rear diff from a limited and hope that would work. jim
Jim did I read that correctly? put a N/A transmission in the SRT or just the TCU? because an N/A transmission wont last long with the SRT.

Where is the TCU located? is it hard to change, I have a spare SRT-6 diff, If the TCU is easily accesable I can put the SRT diff and my TCU into my fiance's N/A if that works, then her diff with her TCU should in theory work in my SRT
 
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Old May 27, 2010 | 09:43 PM
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Default Re: maybe we can get the 327 rear gear to work

By the way, what sort of improvments will having a 327 have in our cars? for example how much improvment would one see in the q/mile?, wouldn't we loose some top end speed?
 
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Old May 27, 2010 | 10:27 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by kolevski
By the way, what sort of improvments will having a 327 have in our cars? for example how much improvment would one see in the q/mile?, wouldn't we loose some top end speed?
I think very little improvement.
The point is that in the future there will not be enough used SRT6 carriers to replace the broken ones.
New is very expensive.
 
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Old May 27, 2010 | 10:35 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by jmswllms
I think very little improvement.
The point is that in the future there will not be enough used SRT6 carriers to replace the broken ones.
New is very expensive.
Hmmmm.... I would think that a 327 would cut at least a tenth off the 60' times, and there would still be more than enough power to pull through the 1/4. I could be totally off base here, but I would think a 327 would cut 2-3 tenths off the 1/4 time. Does this sound wrong?
 
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Old May 27, 2010 | 11:05 PM
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Default Re: maybe we can get the 327 rear gear to work

you have to look at cost vs. gain

is 1 tenth really worth the cost, when a nitrous kit could present more than that and half the cost of a new carrier?

Also, is the 3.27 any stronger than the stock SRT rear end? If not I'd say it might be wise to look elsewhere because I have a feeling at least 3-4 of you could still break the 3.27. you guys know im right, lol.
 
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Old May 28, 2010 | 09:20 AM
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Default Re: maybe we can get the 327 rear gear to work

first if i can get into the 11 without the 327 then fine ,,but the small change from 307 to 327 would put me in the 11 and would not brake as easy (torque)
is 1 tenth really worth the cost? yes and no nitrus for me.
Also, is the 3.27 any stronger than the stock SRT rear end? no but it needs less power to move it
Jim did I read that correctly? put a N/A transmission in the SRT or just the TCU? because an N/A transmission wont last long with the SRT. I would like to put a n/a tranny ,rear end, and tcm into my car and see what happens, it is the same transmission,,you have to add a clutch pac and the limited has 5 clutchs the srt 6 has 6 in each clutch pac,but yes it is the same, you may have to use a srt6 valve body. not sure on that.
The point is that in the future there will not be enough used SRT6 carriers to replace the broken ones.but if we get the 327 to work we will have a lot of rear ends just so you know the new challanger,charger 300c and a few others use the same trannyand rear as we do, ( slight changes),mounting, valve body, gear sets,are bigger so the will not fit into the x fire, the new himi gets the same tranny as we do just refigered,
 

Last edited by amx1397; May 28, 2010 at 09:23 AM.
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Old May 28, 2010 | 09:58 AM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by rcompart
The nun-mobile is running like a champ... I don't even have to worry about dash lights and a wing that has a mind of it's own.
[FONT='Calibri','sans-serif']Touché Rudy, and for the record, since installing the new intake last night, the wing has been down and I have no lights on at the dash whatsoever. Am waiting till I know it is good for real before I post in my thread.[/FONT]
[FONT='Calibri','sans-serif'][/FONT]
[FONT='Calibri','sans-serif']Sorry for the offtrack post [/FONT]
 
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Old May 28, 2010 | 12:28 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by kolevski
By the way, what sort of improvments will having a 327 have in our cars? for example how much improvment would one see in the q/mile?, wouldn't we loose some top end speed?
I made a spreadsheet awhile ago that calculates our car's speed versus RPM with the stock rear diff and stock tire size. I changed the diff ratio to the 3.27 and attached the PDF.

speed_vs_rpm_327_diff.pdf

The PDF with the stock rear diff can be found in this thread: https://www.crossfireforum.org/forum...osticking.html

I don't know how this would truly affect 1/4 mile performance, but you would be accelerating a bit quicker with the 327 due to the slightly higher torque multiplication.
 
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Old May 28, 2010 | 01:36 PM
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Default Re: maybe we can get the 327 rear gear to work

The ability to go 180+ is overrated to me i would much rather have better acceleration. and your only talking about a few hundred rpm difference when cruising at 60. switching from 307 to a 327 gear isn't a major change. I have seen guys swap from 280 gears to 411 and drop 1.5 seconds in the 1/4 mile. if you follow that math the 327 gear could net you 2 tenths at the end of the track.
 
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Old May 28, 2010 | 01:49 PM
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Default Re: maybe we can get the 327 rear gear to work

Originally Posted by ProjectMayhem
The ability to go 180+ is overrated to me i would much rather have better acceleration. and your only talking about a few hundred rpm difference when cruising at 60. switching from 307 to a 327 gear isn't a major change. I have seen guys swap from 280 gears to 411 and drop 1.5 seconds in the 1/4 mile. if you follow that math the 327 gear could net you 2 tenths at the end of the track.
or we could just switch to a 411 gear ... yeah i like that option. hahaha.
 
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