 Building strong 914 tranny, Which are the most important items? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| dkjens |
 Mar 8 2009, 11:47 AM
Post
#1
|
|
Member  Group: Members Posts: 159 Joined: 24-November 08 From: Pasadena, CA Member No.: 9,785 Region Association: None  |
So, I just picked up another 914 tranny, so now I have the one in my '73 and this newly acquired tranny. I will have a local shop owner and really great friend build me one good 914 tranny with the gear spacing for V8s. What can I do (spend) money on during this transmission rebuild to make it as strong as possible, in addition to the billet intermediate plate?
I figure we'll take both trannys apart, lay out the gears, synchros etc., pick the best parts (hope both 2nd gear sets are in good shape), 1st and 2nd stays stock, reversed 4th becomes 3rd, reversed 3rd becomes 4th and reversed 2nd becomes new 5th. New bearings and synchros if needed, although they work fine in the tranny in my car. So, definately, the billet intermediat plate, there's $400.00, do I need oil cooler/pump and which system would be the best bang for the buck? The car is/will be a fun street car, 911SC brakes all around, Kennedy 9" clutch, at the moment mild Chevy 283 (est. 200-250HP) but later in the year Chevy 350 (400-500HP) so may look for ceramic clutch plate (with springs if possible for a little engage slippage). I have never been on the track so I can guarantee that I am a lot less agressive driver than most on this board (IMG:style_emoticons/default/driving.gif) |
   |
 
|
  |
Replies
| Dr. Roger |
Mar 8 2009, 09:18 PM
Post
#2
|
|
A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
IMHO, the chevy 283 and the rare 302 are the perfect motors for this car.
400+HP will nuke your tranny in short order, intermediate plate or not. my car is pushing about 350 to 375HP and I don't exactly baby it. And still i managed to over stress what i believe to be the intermediate bearings at about 2000 miles. in hind sight, i'd be better off going for a less torquey 327/302/283, or blow some bigger bucks on the 930 or 915 transaxle seen here... http://longisland.craigslist.org/pts/1065158675.html this is what yo really need..... ;-) http://cgi.ebay.com/ebaymotors/ZF-TRANSAXL...sQ5fAccessories ZF tranny for sale http://www.gt40s.com/forum/gt40-parts-sale...saxle-sale.html GT40 6 speed.... http://www.gt40s.com/forum/gt40-tech-power...sa-rebuilt.html more torque requires more dollars to support it. unless you've got some good discretionary/disposable income, i'd stick with the shorter stroke V8's. *EDIT and that 283 will shorten the lifespan of your CV's if you haven't already upgraded.... ;-) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/aktion035.gif) |
|
|
|
Posts in this topic
dkjens Building strong 914 tranny Mar 8 2009, 11:47 AM
d914 Im not a tranny guy but some take first out, other... Mar 8 2009, 12:07 PM Cap'n Krusty How are you gonna reverse 2nd? You have a 904 mai... Mar 8 2009, 12:44 PM dkjens I know not to use 1st except for as described. Is ... Mar 8 2009, 12:48 PM SirAndy
at the moment mild Chevy 283 (est. 200-250HP)
Th... Mar 8 2009, 01:05 PM Bruce Hinds The wide gear spacing works well with the V8. I t... Mar 8 2009, 03:32 PM ConeDodger If you are thinking about 500HP you can build a st... Mar 8 2009, 04:46 PM
Todd Enlund
If you are thinking about 500HP you can build a s... Mar 8 2009, 08:06 PM Cap'n Krusty Lest we forget, 915s have a nasty habit of explodi... Mar 8 2009, 07:27 PM jimkelly are you gonna be running fat rubber ( flared car )... Mar 8 2009, 08:09 PM Todd Enlund
are you gonna be running fat rubber ( flared car ... Mar 8 2009, 08:36 PM SirAndy
I hear a 930 box run upside down doesn't oil ... Mar 8 2009, 09:28 PM dkjens Well, looks like I'll just put a little money ... Mar 8 2009, 09:26 PM messix
Well, looks like I'll just put a little money... Mar 8 2009, 09:39 PM Bruce Hinds The 283 and 302 are great motors, but you can get ... Mar 9 2009, 10:22 AM dkjens So if I'm looking for a 327 block for a small ... Mar 9 2009, 01:59 PM jmmotorsports
So if I'm looking for a 327 block for a small... Mar 9 2009, 02:13 PM yokesman
So if I'm looking for a 327 block for a smal... Mar 9 2009, 04:52 PM MZM Thinking out of the box, have you looked at the Su... Mar 9 2009, 05:05 PM yokesman this is a subject that would be helpful to me in g... Mar 9 2009, 05:08 PM messix early 327 block is 1967 and older. you can find th... Mar 9 2009, 06:02 PM Bruce Hinds 350 and 327 were both a 4" bore and the diffe... Mar 9 2009, 11:11 PM messix
350 and 327 were both a 4" bore and the diff... Mar 9 2009, 11:41 PM yokesman per wiki ,
4.8 and 5.3 gm engines share the same b... Mar 10 2009, 02:12 PM jimkelly oh - just get a brand new crate 350 and pop it in ... Mar 10 2009, 07:38 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd April 2026 - 11:31 AM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.