Troubleshooting & Technical Questions & Modifications Have technical or modification questions about the Crossfire? Find out the answer, or give advice in here!

V8 Crossfire Conversion Diary

Thread Tools
 
  #681 (permalink)  
Old 11-10-2009, 04:41 PM
downwardspiral's Avatar
Senior Member
Join Date: Jan 2008
Location: Long Island, NY
Age: 37
Posts: 2,009
Likes: 0
Received 2 Likes on 2 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by LantanaTX
for the rear end I like the C55 with a torsen posi. but for now I like the idea of the n/a's 3.27 ratio combined with lots of torque in a pretty light car.
Is the c55 diff compatable with the NA gears, housing and/or axles?
 
  #682 (permalink)  
Old 11-10-2009, 04:51 PM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by downwardspiral
Is the c55 diff compatable with the NA gears, housing and/or axles?
I have no idea about the compatibility of the ring and pinion gears, but I have a very strong suspition that the whole Pumkin can be bolted into our cars.
 
  #683 (permalink)  
Old 11-10-2009, 05:17 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

I think you would be right
 
  #684 (permalink)  
Old 11-10-2009, 06:04 PM
rcompart's Avatar
Senior Member
Join Date: Apr 2008
Location: Chicago, IL
Posts: 3,177
Likes: 0
Received 16 Likes on 16 Posts
Default Re: V8 Crossfire Conversion Diary

Who's gonna be the guinea pig for this one. LOL I know the one from a base will fit in there just fine but a 3.46 or even better yet 3.92 for a track car sounds SO tempting!
 
  #685 (permalink)  
Old 11-10-2009, 06:34 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

that 3.46 would be a grt all around gear...quarter or top end....
 
  #686 (permalink)  
Old 11-10-2009, 06:50 PM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

What did the 3.46 come in? that or a 3.70 would be my choice for an all around gear.
 
  #687 (permalink)  
Old 11-10-2009, 06:55 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

well, I had a 3.73 in my Z 28, it was a grt gear...but we are turning 6200, my Z was turning 9000....still something in that area of 3.55-3.73....would be a grt gear for these cars...5 speed auto vs 4 speed standard in the old days...so where can we get a gear for our cars, and who can reprogram it? I have been asking everyone this question for sometime, including our friends in Germany...
 

Last edited by oledoc2u; 11-10-2009 at 07:00 PM.
  #688 (permalink)  
Old 11-10-2009, 07:33 PM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by oledoc2u
well, I had a 3.73 in my Z 28, it was a grt gear...but we are turning 6200, my Z was turning 9000....still something in that area of 3.55-3.73....would be a grt gear for these cars...5 speed auto vs 4 speed standard in the old days...so where can we get a gear for our cars, and who can reprogram it? I have been asking everyone this question for sometime, including our friends in Germany...
The rear gear can be programed with the STAR DAS system. We did this with my car. Where to find the gear? If they use the same rear end a good place to look is smaller engined cars such as 230's four bangers and maybe the the smaller V6 240's.

Just checked and 230's seem to use the 3.27 but C240's use 3.46 !!

Hear is on on Ebay. Ignore the picture as it is just a file photo and not of the actual diff.
http://cgi.ebay.com/ebaymotors/Rear-...Q5fAccessories
 

Last edited by LantanaTX; 11-10-2009 at 07:43 PM.
  #689 (permalink)  
Old 11-10-2009, 08:17 PM
rcompart's Avatar
Senior Member
Join Date: Apr 2008
Location: Chicago, IL
Posts: 3,177
Likes: 0
Received 16 Likes on 16 Posts
Default Re: V8 Crossfire Conversion Diary

Looks like someone got a heck of a deal on that motor you listed above!
 
  #690 (permalink)  
Old 11-10-2009, 08:55 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

now we are getting somewhere if that gear will fit our diffs...this is what I have been looking for...
 
  #691 (permalink)  
Old 11-11-2009, 12:22 AM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

I am about 90% sure it will fit. I was under a C240 last week at the shop where my car is and the entire suspension looked axactly like ours.
 
  #692 (permalink)  
Old 11-11-2009, 10:17 AM
MikeR's Avatar
Senior Member
Join Date: Jan 2008
Location: North Plains, OR
Age: 74
Posts: 5,180
Likes: 0
Received 6 Likes on 5 Posts
Default Re: V8 Crossfire Conversion Diary

Lantana, what is the latest update on the V8?
 
  #693 (permalink)  
Old 11-11-2009, 10:53 AM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by MikeR
Lantana, what is the latest update on the V8?
We believe that my donor ECU has a problem which probably resulted from the original accident the CL500 was in. Beckmann has my replacement ECU and is unlocking it right now. I can have it back tomorrow or Friday. I am about to check with the shop to make sure Robert Karause is coming in tomorrow before paying for next day air.
 
  #694 (permalink)  
Old 11-11-2009, 05:12 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

Mike, we are playing with our rear ends while we are waiting for the ECU results....what do you think? LOL....
 
  #695 (permalink)  
Old 11-11-2009, 05:21 PM
spotsbimmer's Avatar
Forum Regular
Join Date: Dec 2007
Location: Bay Area, CA
Posts: 452
Received 1 Like on 1 Post
Default Re: V8 Crossfire Conversion Diary

Boy that sounds sick, especially in the plural context........................

Originally Posted by oledoc2u
Mike, we are playing with our rear ends while we are waiting for the ECU results....what do you think? LOL....
 
  #696 (permalink)  
Old 11-11-2009, 05:27 PM
rcompart's Avatar
Senior Member
Join Date: Apr 2008
Location: Chicago, IL
Posts: 3,177
Likes: 0
Received 16 Likes on 16 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by spotsbimmer
Boy that sounds sick, especially in the plural context........................
Get your head out of the gutter. LOL
 
  #697 (permalink)  
Old 11-11-2009, 05:35 PM
MikeR's Avatar
Senior Member
Join Date: Jan 2008
Location: North Plains, OR
Age: 74
Posts: 5,180
Likes: 0
Received 6 Likes on 5 Posts
Default Re: V8 Crossfire Conversion Diary

Hey... you can play with what ever you like......but we dont need to know...TMI

So, if you change your 'rear end' ratio, wont you have to reprogram the car to set up everything properly?
 
  #698 (permalink)  
Old 11-11-2009, 06:03 PM
oledoc2u's Avatar
Senior Member
Join Date: Mar 2008
Location: IN
Age: 70
Posts: 14,576
Received 20 Likes on 18 Posts
Default Re: V8 Crossfire Conversion Diary

yes, that is the REAL discussion...man, what rear end were you thinkin? yes, mike, that has been the problem all along...I wanted to change rear end gears, Lantana may have the answer to not only the programming, but another rear end from an MB that has an even higher ratio than what I have been looking at...so, while waiting for the V-8 to get up and running, we have been discussing our rear ends...
 
  #699 (permalink)  
Old 11-11-2009, 06:08 PM
LantanaTX's Avatar
Senior Member
Thread Starter
Join Date: Aug 2007
Location: Lantana, Republic of Texas
Age: 65
Posts: 3,084
Likes: 0
Received 7 Likes on 7 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by MikeR
Hey... you can play with what ever you like......but we dont need to know...TMI

So, if you change your 'rear end' ratio, wont you have to reprogram the car to set up everything properly?
I am not touching the rear end comments LOL, but you can change ratio in the computer and it is not very hard to do. My ECU wasn't done in time to ship back today so i will have it here on Friday.
 
  #700 (permalink)  
Old 11-11-2009, 06:54 PM
onehundred80's Avatar
Senior Member
Join Date: Apr 2006
Location: Ontario
Age: 84
Posts: 25,398
Received 561 Likes on 471 Posts
Default Re: V8 Crossfire Conversion Diary

Originally Posted by oledoc2u
yes, that is the REAL discussion...man, what rear end were you thinkin? yes, mike, that has been the problem all along...I wanted to change rear end gears, Lantana may have the answer to not only the programming, but another rear end from an MB that has an even higher ratio than what I have been looking at...so, while waiting for the V-8 to get up and running, we have been discussing our rear ends...
You keep on discussing whatever you want, not as though there is anything wrong with that mind you.
Rest assured I am not going to butt in.
 


Quick Reply: V8 Crossfire Conversion Diary



All times are GMT -4. The time now is 02:15 PM.