LN3 And Gearing - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-13-2006, 06:40 PM   #1
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default LN3 And Gearing

Lately i've noticed some things about gearing with the LN3. I think that the 2.84 LN3 will out accelerate a 3.33 geared LN3. I've compared videos and heard stories and this seems to be the case. I think that since all the power is down low with these engines, the 3.33 gearing keeps the revs too high in second gear. Seems as though the 3.33 geared LN3 dies out when 2nd hits, whereas the 2.84 LN3 keeps pulling. Have you guys noticed this? You think 3.33 is way overkill for an LN3?
fantastic88 is offline   Reply With Quote
Old 02-13-2006, 07:28 PM   #2
Senior Member
True Car Nut
 
Join Date: Jul 2003
Location: Toronto, Ontario, Canada
Posts: 5,158
Thanks: 0
Thanked 0 Times in 0 Posts
repinS is on a distinguished road
Default

3.33 is too short for the LN3, IMO - but I haven't driven anything else to compare to. It makes for some peppy revvy stuff for daily driving - aka, when you don't exceed 3000rpm.

Problem, is, I find myself hitting the 3k rpm plateau far too often, especially when the tranny likes to stretch out first gear. Sucks the big one for fuel economy. That said, I still have a healthy amount of pull in 2nd gear. I'd like to experience a 2.97 FDR, wonder what that'* like.
repinS is offline   Reply With Quote
Old 02-13-2006, 08:15 PM   #3
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Yup, i'm thinking the same thing.
Quote:
I'd like to experience a 2.97 FDR, wonder what that'* like.
I saw a video around here with the 3.33 and it was slow compaired to vids of 2.84 LN3. But I think the 2.97 would be optimum.
fantastic88 is offline   Reply With Quote
Old 02-13-2006, 11:36 PM   #4
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by fantastic88
Yup, i'm thinking the same thing.
Quote:
I'd like to experience a 2.97 FDR, wonder what that'* like.
I saw a video around here with the 3.33 and it was slow compaired to vids of 2.84 LN3. But I think the 2.97 would be optimum.
I have been saying that for a long time.... 2.97 would be the right gear to have for the LN3... If my 2.84 ever dies I will try to find a 2.97 440-T4

I'd show you the vid for the top of second for the 2.84... But um yeah not a good idea here..

Mine is still slow tho...LMAO... 2nd with the 2.84 tops out at 80-82mph as opposed to the 3.33... 3.06 would have been more than enough for any LN3 and even then it would have been overkill... I can say I get great highway milage with the 2.84 ratio tho...

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-14-2006, 01:17 AM   #5
Member
Posts like a V-Tak
 
Join Date: Feb 2005
Location: Walled Lake, MI
Posts: 95
Thanks: 0
Thanked 0 Times in 0 Posts
maybe2fast is on a distinguished road
Default

I have the 2.97 LN3 and it goes pretty well
maybe2fast is offline   Reply With Quote
Old 02-14-2006, 01:38 AM   #6
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by maybe2fast
I have the 2.97 LN3 and it goes pretty well
Yeah after driving the 2.84'*, 2.97'* and 3.33'*... The 2.97 was my favorite

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-14-2006, 05:09 PM   #7
Member
Posts like a V-Tak
 
Join Date: Feb 2005
Location: Walled Lake, MI
Posts: 95
Thanks: 0
Thanked 0 Times in 0 Posts
maybe2fast is on a distinguished road
Default

I was thinking about switching to the 3.73 but if you guys have driven them with the different FDR and 2.97 is the best thats awesome
maybe2fast is offline   Reply With Quote
Old 02-14-2006, 05:13 PM   #8
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by maybe2fast
I was thinking about switching to the 3.73 but if you guys have driven them with the different FDR and 2.97 is the best thats awesome
The 3.33'* can be fun around town.... But I don't like how quick the LN3 runs out of breath with it.... If not a 2.97 you should be able to have the 440-T4 set up with a 3.06 ratio, thats most likely as far as I would go on the LN3 or L27... The L36 may be fun with a 3.33 ratio.. I have had thoughts about that one

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 02-14-2006, 07:08 PM   #9
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

Quote:
The L36 may be fun with a 3.33 ratio.. I have had thoughts about that one
I think that Gp GT'* have 3.29 gearing. They do feel very quick for NA. It usually only takes them intake, exhaust, and rockers to keep up with a stock GTP.
fantastic88 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Seems like my gearing changed?? Timothy's Buick 1987-1991 1 04-12-2006 10:22 AM
GXP Gearing vs. SSEI gearing pontiacGXP General GM Chat 32 02-14-2006 06:49 PM
93 SE Gearing pakenney38 1992-1999 9 09-01-2004 11:49 PM
transmission gearing brian89gp General GM Chat 67 07-13-2003 03:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:50 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.