Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
> Need engine rebuild advice, Engine rebuild
Gplracer
post Sep 8 2019, 12:33 AM
Post #1


Newbie
*

Group: Members
Posts: 12
Joined: 8-September 19
From: Evans GA
Member No.: 23,442
Region Association: South East States



I grew up with a 914 that my dad drove. It was a 1973 1.7L. When I went to college in 1985 I took the car with me. A year later the engine got very tired. My dad bought me more reliable transportation. One weekend I came home my beloved car was gone. My dad had sold it.

Fast forward 34 year later and I have found the car! It was painted shortly after being purchased but never fixed up. I have the opportunity to buy the car back. I know the engine needs to be rebuilt. I do not know if I want to rebuild the 1.7L or find a 2.0L engine or doing a v8 conversion. I will take any advice you can give me.

I am leaning toward rebuilding the original 1.7L. If so can I get more hp out of it?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Sep 8 2019, 04:54 AM
Post #2


914-6 GT in waiting
***************

Group: Members
Posts: 19,238
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



Buy the car. Figure out the rest once it’s in your garage.
If it was me, I would rebuild the 1.7 into a 2.0, add modern efi and enjoy the car.

(IMG:style_emoticons/default/welcome.png)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rick 918-S
post Sep 8 2019, 05:01 AM
Post #3


Hey nice rack! -Celette
***************

Group: Members
Posts: 20,419
Joined: 30-December 02
From: Now in Superior WI
Member No.: 43
Region Association: Northstar Region



(IMG:style_emoticons/default/agree.gif) great story! (IMG:style_emoticons/default/welcome.png) (IMG:style_emoticons/default/thisthreadisworthlesswithoutpics.gif) (IMG:style_emoticons/default/assimilate.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Gplracer
post Sep 8 2019, 07:44 AM
Post #4


Newbie
*

Group: Members
Posts: 12
Joined: 8-September 19
From: Evans GA
Member No.: 23,442
Region Association: South East States



QUOTE(mepstein @ Sep 8 2019, 06:54 AM) *

Buy the car. Figure out the rest once it’s in your garage.
If it was me, I would rebuild the 1.7 into a 2.0, add modern efi and enjoy the car.

(IMG:style_emoticons/default/welcome.png)


Sounds like exactly what I want to do. I did not know I could build the 1.7 into a 2.0. Are there any guides online to this process?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Sep 8 2019, 08:03 AM
Post #5


914-6 GT in waiting
***************

Group: Members
Posts: 19,238
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



QUOTE(Gplracer @ Sep 8 2019, 09:44 AM) *

QUOTE(mepstein @ Sep 8 2019, 06:54 AM) *

Buy the car. Figure out the rest once it’s in your garage.
If it was me, I would rebuild the 1.7 into a 2.0, add modern efi and enjoy the car.

(IMG:style_emoticons/default/welcome.png)


Sounds like exactly what I want to do. I did not know I could build the 1.7 into a 2.0. Are there any guides online to this process?

Lots. Google 914world 2056 engine
Not cheap but not crazy expensive. You can use your engine case and keep it numbers matching, if that's important to you or buy a core 2.0 and rebuld with 96mm P&C's.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BeatNavy
post Sep 8 2019, 08:29 AM
Post #6


Certified Professional Scapegoat
****

Group: Members
Posts: 2,924
Joined: 26-February 14
From: Easton, MD
Member No.: 17,042
Region Association: MidAtlantic Region



This is a great reference: http://www.914world.com/bbs2/index.php?sho...p;#entry1529209

As Jake says, nothing special about the 1.7 case. It is a good basis for a 2.0 or 2056 (or higher).

2056 can be made from 1.7 case by dropping in 96mm piston/cylinder set and acquiring a 2.0 (71mm) crank. No machining required (unless the crank or case itself need work).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Gplracer
post Sep 8 2019, 11:21 AM
Post #7


Newbie
*

Group: Members
Posts: 12
Joined: 8-September 19
From: Evans GA
Member No.: 23,442
Region Association: South East States



QUOTE(BeatNavy @ Sep 8 2019, 10:29 AM) *

This is a great reference: http://www.914world.com/bbs2/index.php?sho...p;#entry1529209

As Jake says, nothing special about the 1.7 case. It is a good basis for a 2.0 or 2056 (or higher).

2056 can be made from 1.7 case by dropping in 96mm piston/cylinder set and acquiring a 2.0 (71mm) crank. No machining required (unless the crank or case itself need work).


Thanks! I noticed that is an old post and many of the parts are not sold by Jake any longer on his website. It does give me some good info.

Any suggestions on where to get the parts from. I am sure there are some out there that are really good and some that are not good at all. Jake's cylinders and pistons are really expensive but it looks like Mahle makes some good ones as well that are not as pricey.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Coondog
post Sep 8 2019, 12:40 PM
Post #8


Advanced Member
****

Group: Members
Posts: 2,089
Joined: 24-September 15
From: Apple Valley Calif
Member No.: 19,195
Region Association: Southern California



Buy the car, sort it all out then worry about the motor. You will uncover many layers of projects that will need to be addressed.
Read every post in the Lapuwali thread and every build thread. Education, Education, Education.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
72hardtop
post Sep 10 2019, 02:21 AM
Post #9


Member
**

Group: Members
Posts: 120
Joined: 11-September 13
From: Seattle/HB Ca./Fujieda-Japan
Member No.: 16,378
Region Association: Pacific Northwest



QUOTE(Gplracer @ Sep 8 2019, 09:21 AM) *

QUOTE(BeatNavy @ Sep 8 2019, 10:29 AM) *

This is a great reference: http://www.914world.com/bbs2/index.php?sho...p;#entry1529209

As Jake says, nothing special about the 1.7 case. It is a good basis for a 2.0 or 2056 (or higher).

2056 can be made from 1.7 case by dropping in 96mm piston/cylinder set and acquiring a 2.0 (71mm) crank. No machining required (unless the crank or case itself need work).


Thanks! I noticed that is an old post and many of the parts are not sold by Jake any longer on his website. It does give me some good info.

Any suggestions on where to get the parts from. I am sure there are some out there that are really good and some that are not good at all. Jake's cylinders and pistons are really expensive but it looks like Mahle makes some good ones as well that are not as pricey.


Mahle is not close to what they used to be decades ago.

Go with a set of AA
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Sep 10 2019, 07:34 PM
Post #10


En Garde!
**********

Group: Admin
Posts: 13,423
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region



Actually the 1.7 cases are often better then the 2.0 cases fro the 1911 or 2056 engines.

If you have to build the eninge and you want more rumble, but you don't want to change your crank, build a 1911. Its the 96mm pistons, with the shorter stroke that will still put down more power then stock, run on Djet (or cam it for more power and go EFI or carbs).

So many options.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschetub
post Sep 10 2019, 11:55 PM
Post #11


Advanced Member
****

Group: Members
Posts: 4,697
Joined: 25-July 15
From: New Zealand
Member No.: 18,995
Region Association: None



QUOTE(72hardtop @ Sep 10 2019, 08:21 PM) *

QUOTE(Gplracer @ Sep 8 2019, 09:21 AM) *

QUOTE(BeatNavy @ Sep 8 2019, 10:29 AM) *

This is a great reference: http://www.914world.com/bbs2/index.php?sho...p;#entry1529209

As Jake says, nothing special about the 1.7 case. It is a good basis for a 2.0 or 2056 (or higher).

2056 can be made from 1.7 case by dropping in 96mm piston/cylinder set and acquiring a 2.0 (71mm) crank. No machining required (unless the crank or case itself need work).


Thanks! I noticed that is an old post and many of the parts are not sold by Jake any longer on his website. It does give me some good info.

Any suggestions on where to get the parts from. I am sure there are some out there that are really good and some that are not good at all. Jake's cylinders and pistons are really expensive but it looks like Mahle makes some good ones as well that are not as pricey.


Mahle is not close to what they used to be decades ago.

Go with a set of AA

You are joking right (IMG:style_emoticons/default/dry.gif) ,atleast hope you are.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Al Meredith
post Sep 11 2019, 10:02 AM
Post #12


Senior Member
***

Group: Members
Posts: 958
Joined: 4-November 04
From: Atlanta, ga
Member No.: 3,061



GPLRACER, I PMed you about engine choices ,. Al
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Sep 11 2019, 10:07 AM
Post #13


Michael
*****

Group: Members
Posts: 9,711
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California



I agree with Mepstein - Buy the car and get it in your garage and then do a full assessment of its condition. Rust repair being number 1 on the list. Engines are a relatively easy issue to address. Mostly, have fun reconnecting with your old 914.

Personally, I would go with with a 2056 with the factory 914 FI and SS exhaust. I would have the transaxle rebuilt at the same time and of course a new clutch, pressure plate, etc. (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 25th April 2024 - 03:43 AM