![]() |
|
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. |
|
![]() |
stateofidleness |
![]()
Post
#1
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 810 Joined: 1-September 07 From: Canyon Lake, Texas! Member No.: 8,065 Region Association: None ![]() |
so i have a dumb question.. i have my engine torn down to the heads and case and was my cylinders (i think) are kinda rusty (the little fins on it)
if i wanted to get a new cylinder/piston kit yada yada... can i get a "big bore" 96mm kit? I didn't know if going with the big kit would require any modifying of the heads or case or something.. or if it would "bolt up" just like the stock parts. pardon the noobness (IMG:style_emoticons/default/smile.gif) |
![]() ![]() |
Cevan |
![]()
Post
#2
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 ![]() |
So if I took my '75 L-Jet 1.8 with 56K miles and had the cylinders bored out to 96 mm, bought some 96mm pistons from Jake (or other reputable source) and continued to use my 73'/74' SSI HEs and Bursch exhaust, what kind of hp increase could I expect?
Seems like it may be a fairly cost effective way to gain some torque/power. (IMG:style_emoticons/default/idea.gif) |
SirAndy |
![]()
Post
#3
|
Resident German ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California ![]() |
So if I took my '75 L-Jet 1.8 with 56K miles and had the cylinders bored out to 96 mm, bought some 96mm pistons from Jake (or other reputable source) and continued to use my 73'/74' SSI HEs and Bursch exhaust, what kind of hp increase could I expect? Seems like it may be a fairly cost effective way to gain some torque/power. (IMG:style_emoticons/default/idea.gif) i would guess around 10 HP ... let's assume you're currently somewhere around 80 HP, a 10 HP increase is 12.5% more power! (IMG:style_emoticons/default/shades.gif) Andy |
r_towle |
![]()
Post
#4
|
Custom Member ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 24,591 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States ![]() ![]() |
So if I took my '75 L-Jet 1.8 with 56K miles and had the cylinders bored out to 96 mm, bought some 96mm pistons from Jake (or other reputable source) and continued to use my 73'/74' SSI HEs and Bursch exhaust, what kind of hp increase could I expect? Seems like it may be a fairly cost effective way to gain some torque/power. (IMG:style_emoticons/default/idea.gif) i would guess around 10 HP ... let's assume you're currently somewhere around 80 HP, a 10 HP increase is 12.5% more power! (IMG:style_emoticons/default/shades.gif) Andy Higher CR would result in probably 20hp. So you stand at 100hp With a new cam and head work, you can squeeze an additional 20-30 hp out of it. It will also run cooler with the new cam. Rich |
Cevan |
![]()
Post
#5
|
Senior Member ![]() ![]() ![]() Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 ![]() |
So if I took my '75 L-Jet 1.8 with 56K miles and had the cylinders bored out to 96 mm, bought some 96mm pistons from Jake (or other reputable source) and continued to use my 73'/74' SSI HEs and Bursch exhaust, what kind of hp increase could I expect? Seems like it may be a fairly cost effective way to gain some torque/power. (IMG:style_emoticons/default/idea.gif) i would guess around 10 HP ... let's assume you're currently somewhere around 80 HP, a 10 HP increase is 12.5% more power! (IMG:style_emoticons/default/shades.gif) Andy Higher CR would result in probably 20hp. So you stand at 100hp With a new cam and head work, you can squeeze an additional 20-30 hp out of it. It will also run cooler with the new cam. Rich What would need to be done to the heads and how much could I expect to spend for that? Just changing the P/Cs is something I could accomplish over the course of 3-4 weeks. I may be able to get the cylinders bored for free so it would be a 10-20 hp gain for less than $300. That's $15-30 per hp. A 30-50hp gain would be fantastic but it would likely be another winter project (and I'm not doing one of those next winter), likely cost at least $1500-2000, and may be beyond my capabilities. I could do the P/C this winter and then the cam and heads the following winter. |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 15th June 2024 - 09:19 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |