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 )

13 Pages V « < 2 3 4 5 6 > »   
 Reply to this topicStart new topic
> Tracking the 914 - Happy New Year!, Turning this into a regular thing...
sixnotfour
post Feb 7 2021, 01:10 PM
Post #61


914 Wizard
**********

Group: Members
Posts: 10,411
Joined: 12-September 04
From: Life Elevated..planet UT.
Member No.: 2,744
Region Association: Rocky Mountains
Nice Upgrade !!!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Charles Freeborn
post Feb 17 2021, 11:18 AM
Post #62


Member
**

Group: Members
Posts: 244
Joined: 21-May 14
From: United States
Member No.: 17,377
Region Association: Pacific Northwest
Sweet!

If you'd be interested in selling the T4 engine separate from the car let me know.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Feb 18 2021, 12:29 AM
Post #63


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
QUOTE(Charles Freeborn @ Feb 17 2021, 09:18 AM) *

Sweet!

If you'd be interested in selling the T4 engine separate from the car let me know.

PM sent
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ndfrigi
post Feb 18 2021, 12:58 AM
Post #64


Advanced Member
****

Group: Members
Posts: 2,928
Joined: 21-August 11
From: Orange County
Member No.: 13,474
Region Association: Southern California
Congrats on your new beast @infraredcalvin
Maybe you can show your new car on the coming SoCal meet in San Dimas.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Feb 18 2021, 08:13 AM
Post #65


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Thanks, I’d like to, but I’m still trying to get her sorted. Finding out there is no easy way to change the lower spark plugs without dropping the engine. It’s coming out anyway, valve job and closeup inspection as she’s been sitting awhile. Once done you’ll see her on the street as well as the track.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Mar 17 2021, 03:08 PM
Post #66


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Who would have thought spark plugs would be on back order... yanked the motor, did the valves, spot on, took a look inside, I think I still see assembly lube... how many miles are on this engine???

Attached Image

Decided to do a leak down test as well... at 70, 90, and 100 psi I got less than 1% leak down on all cylinders (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/cheer.gif) this thing is near new!

Attached Image

Ordered valve cover seals, will button her back up.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Tdskip
post Mar 19 2021, 10:51 AM
Post #67


Advanced Member
****

Group: Members
Posts: 3,684
Joined: 1-December 17
From: soCal
Member No.: 21,666
Region Association: None
Score!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Justinp71
post Mar 22 2021, 09:56 AM
Post #68


Senior Member
***

Group: Members
Posts: 1,583
Joined: 11-October 04
From: Sacramento, CA
Member No.: 2,922
Region Association: None

Nice Motor! What are the specs on it (size, cams, etc...)?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Mar 23 2021, 08:12 AM
Post #69


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Motor came with limited info, but finding notes referencing:
3.4 max moritz 9.8 comp pistons with 964 cam
46 ida Webers
Electromotive HPV-1 dual plug ignition

Once I get it dialed in at the track I’ll get it up for some dyno pulls
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Tdskip
post Mar 23 2021, 09:47 AM
Post #70


Advanced Member
****

Group: Members
Posts: 3,684
Joined: 1-December 17
From: soCal
Member No.: 21,666
Region Association: None
I have 964 cams in the ‘74 911 with the 3.2, they work well.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
campbellcj
post Mar 27 2021, 08:07 AM
Post #71


I can't Re Member
****

Group: Members
Posts: 4,540
Joined: 26-December 02
From: Agoura, CA
Member No.: 21
Region Association: Southern California
Wow congrats, that looks like a lot of fun!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
slivel
post Mar 27 2021, 11:45 AM
Post #72


Old car....... older driver
***

Group: Members
Posts: 508
Joined: 10-July 04
From: San Diego
Member No.: 2,332
Region Association: Southern California
QUOTE(infraredcalvin @ Mar 23 2021, 07:12 AM) *

Motor came with limited info, but finding notes referencing:
3.4 max moritz 9.8 comp pistons with 964 cam
46 ida Webers
Electromotive HPV-1 dual plug ignition

Once I get it dialed in at the track I’ll get it up for some dyno pulls


Similar build as my engine except I have GE 80 cams. For comparison, mine made 290 at the wheels.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Apr 10 2021, 10:15 PM
Post #73


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Got motor back in, everything hooked up, 6 qts of VR1 for starters, immediately fired, but took about 10 tries to prime the carbs before she stayed running.

Was sitting in the car keeping the rpms up when I started hearing loud popping and what I assumed were engine bits being thrown to the floor...

Turns out it was this...

Attached Image

A crew is retrofitting the lights in the warehouse, these were stacked on the W/D near the rear of the car, the exhaust vibrated them off.

(IMG:style_emoticons/default/lol-2.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Charles Freeborn
post Apr 11 2021, 07:02 PM
Post #74


Member
**

Group: Members
Posts: 244
Joined: 21-May 14
From: United States
Member No.: 17,377
Region Association: Pacific Northwest
QUOTE(infraredcalvin @ Apr 10 2021, 09:15 PM) *

Got motor back in, everything hooked up, 6 qts of VR1 for starters, immediately fired, but took about 10 tries to prime the carbs before she stayed running.

Was sitting in the car keeping the rpms up when I started hearing loud popping and what I assumed were engine bits being thrown to the floor...

Turns out it was this...

Attached Image

A crew is retrofitting the lights in the warehouse, these were stacked on the W/D near the rear of the car, the exhaust vibrated them off.

(IMG:style_emoticons/default/lol-2.gif)

(IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/lol-2.gif) The beast ROARS!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post Apr 11 2021, 08:56 PM
Post #75


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California

https://www.youtube.com/watch?v=JZiq93JBxTY


I was able to tune most of the popping and hacking out, but on three of the 6, idle mixture had no effect, time to start taking apart and cleaning out...
User is online!Profile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post May 1 2021, 10:15 PM
Post #76


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Still have the 4, finally got my new FAT build back. According to the builder, this is what 180 horses looks like...

Attached Image

(IMG:style_emoticons/default/idea.gif) This car is so fun and lightweight, I’m going to have a hard time putting it up for sale...
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Justinp71
post May 2 2021, 11:22 PM
Post #77


Senior Member
***

Group: Members
Posts: 1,583
Joined: 11-October 04
From: Sacramento, CA
Member No.: 2,922
Region Association: None
QUOTE(infraredcalvin @ Apr 11 2021, 07:56 PM) *


https://www.youtube.com/watch?v=JZiq93JBxTY


I was able to tune most of the popping and hacking out, but on three of the 6, idle mixture had no effect, time to start taking apart and cleaning out...


Start with just cleaning the idle jets if you haven't already... Then if needed pull out the idle mixture screws (with idle jets out) and blow out with carb cleaner.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
infraredcalvin
post May 2 2021, 11:56 PM
Post #78


Distracted Member
***

Group: Members
Posts: 1,509
Joined: 25-August 08
From: Ladera Ranch, CA
Member No.: 9,463
Region Association: Southern California
Thanks, I ended up, rebuilding the carbs, glad I did as some of the gaskets were ready to start leaking. It also gave me some piece of mind that gaskets were not the culprit for my current tuning issues.

Attached Image

I was still getting spits and misses, worse than before, so I attached my lm2 data logger and pulled spark plugs. She was running pig rich across the board. PO had notes about finally getting the carbs dialed in, so I was trusting his base settings, my gut kept telling me everything was too big...

Venturis: 42
Main jets 170
Idle jets 55
Emulsion tubes F7

I finally got the balls to change main jets to 160 and idles to 50, wow what a difference! No more popping and missing, still rich, but no flat spots where the motor was getting bogged by fuel, moving closer to the sweet spot.

I started having issues with my lm2, so I installed a permanent afr gauge in the cockpit. No data logging, but I can start fine tuning now... anyone know any good carb tuners?

Looks like I’m going to make it to big Willow the weekend of the 15th... looking for a trailer to rent also...

My girls wanted to see some purple on the car so I’m playing with livery schemes on photoshop.

Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Justinp71
post May 4 2021, 02:17 PM
Post #79


Senior Member
***

Group: Members
Posts: 1,583
Joined: 11-October 04
From: Sacramento, CA
Member No.: 2,922
Region Association: None
Fyi, they run rich all the time. This is so the transition from idle to main circuit is smooth. These were designed for max power and with economy not in mind. You sound like you have it tuned fairly well.

IMHO main thing is to have it in the 12's or low 13's AFR at full throttle in the high RPM band, then you won't do any damage to the motor.

I'm only running 160 mains on my 3.2 to give it 12.8 -13.4 AFR (@68f outside air temp) at the high end which is good. This motor has cams and headers, should be about 280hp. I would think you might need larger jets? It also depends on on your air jet sizes too, mine are 190. I have F11 emulsions, I thought about trying F7's but it is running good right now just wish it was a little leaner at idle and cruise (12 afr best case).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Justinp71
post May 4 2021, 04:26 PM
Post #80


Senior Member
***

Group: Members
Posts: 1,583
Joined: 11-October 04
From: Sacramento, CA
Member No.: 2,922
Region Association: None
Also I'd just drive it to the raceway... much more fun! Get AAA 200 mile incase of a mechanical breakdown. Only thing to consider if you do break on the raceway AAA may not tow you out of the raceway not sure. I've done about a half dozen track days this way. Would probably be nice to eventually get your own small 914 size trailer if you go alot.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · The Paddock · Next Newest »
 

13 Pages V « < 2 3 4 5 6 > » 
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 25th April 2024 - 08:21 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
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 ...