 2.4 T, E, S? |
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| Cool914 |
 Mar 8 2012, 10:43 AM
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Member  Group: Members Posts: 98 Joined: 25-January 11 From: Ontario Member No.: 12,627 Region Association: Canada  |
I picked up a 2.4T core motor I am going to rebuild to go in one of my 914's, someday...
It will just befor around town, maybe autox. Question is regarding pistons, it needs new ones and I am either going to find some in spec used ones or go with JEs, and keeping the T cams or regrind E. I would like to get a little more kick out of it while I am at it but I will not be running an external oil cooler so wondering if I go with E (8:1) or S (8.5:1) pistons, would the increase in compression ior E cams mpact operating temperature to the point where I would need a cooler. Any experience, insight? |
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| flyer86d |
Mar 8 2012, 06:25 PM
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Member Group: Members Posts: 484 Joined: 12-January 11 From: Corea, Maine Member No.: 12,585 Region Association: North East States |
We have a 73 911T MFI car that we have owned for years and has been run in many PCA DEs, autocrosses, and time trials. When I rebuilt the engine, I upgraded it to E spec, sort of. I used 2.4 S P&Cs (because I got them on sale), E cams, E MFI (pump and stacks), and distributor. The port size is the same on the T and E motors.
The upgrade gained us about 30 HP which feels more like 80. Back in the 80s, my friends that were running 73 Carrera RSs would only pull about 2 car lengths on us up the back straight at Watkins Glen. It is a wonderfully torquey engine which pulls hard to 7300 rpm just like an S as long as you run a twin pipe muffler. Go for it!!! |
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| BK911 |
Mar 9 2012, 12:44 PM
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#3
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Senior Member Group: Members Posts: 672 Joined: 19-February 04 From: Rocky Top, TN Member No.: 1,674 Region Association: None |
QUOTE(flyer86d @ Mar 8 2012, 04:25 PM)  We have a 73 911T MFI car that we have owned for years and has been run in many PCA DEs, autocrosses, and time trials. When I rebuilt the engine, I upgraded it to E spec, sort of. I used 2.4 S P&Cs (because I got them on sale), E cams, E MFI (pump and stacks), and distributor. The port size is the same on the T and E motors. The upgrade gained us about 30 HP which feels more like 80. Back in the 80s, my friends that were running 73 Carrera RSs would only pull about 2 car lengths on us up the back straight at Watkins Glen. It is a wonderfully torquey engine which pulls hard to 7300 rpm just like an S as long as you run a twin pipe muffler. Go for it!!! I had this exact engine is several early 911s and was BY FAR my favorite. I am building another one very similar because I miss it so much. (IMG:style_emoticons/default/sad.gif) |
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Posts in this topic
Cool914 2.4 T, E, S? Mar 8 2012, 10:43 AM
PeeGreen 914 I ran a 2.4E on my 6 without an external cooler an... Mar 8 2012, 11:26 AM TorqueJunkie
I picked up a 2.4T core motor I am going to rebui... Mar 8 2012, 12:01 PM Cap'n Krusty I ran a 2.4S with Solex (similar to "E")... Mar 8 2012, 12:11 PM Travis Neff I was reading about a supertech engine build that ... Mar 8 2012, 12:20 PM
JmuRiz
I was reading about a supertech engine build that... Mar 9 2012, 09:09 AM
Cool914
I was reading about a supertech engine build that... Mar 9 2012, 09:54 AM GeorgeRud A friend just rebuilt his 2.4T engine using 911S p... Mar 8 2012, 02:13 PM jmill You can go with 2.2 pistons (same diameter as 2.4)... Mar 8 2012, 02:37 PM Cool914 Thanks for the quick feedback and links everyone, ... Mar 8 2012, 04:11 PM jmill
Looks like custom 2.4S JE pistons and birrals are... Mar 8 2012, 06:38 PM Cool914
[quote name='Cool914' post='1641614' date='Mar 8 ... Mar 9 2012, 09:48 AM J P Stein I lkie the JE idea.
Using 2.2L pistons in a 2.4L i... Mar 9 2012, 10:13 AM ClayPerrine I have a 2.4 ST motor in my car (ST = S pistons, c... Mar 9 2012, 12:02 PM |
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