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 )

2 Pages V < 1 2  
 Reply to this topicStart new topic
> Hitting the Dyno, Should be fun..
ThePaintedMan
post Mar 6 2015, 12:04 PM
Post #21


Advanced Member
****

Group: Members
Posts: 3,885
Joined: 6-September 11
From: St. Petersburg, FL
Member No.: 13,527
Region Association: South East States
Very nice Shane. You should be proud of that, especially all the work you and Keith put into it.

I agree that the carbs are probably holding you back. What vents do you have in those 40s again? Are they 30mm? Eventually it would probably be prudent to get your hands on a set of 44s... or send your 40s to Racer Chris. He works magic on his that I simply can't do (mostly proprietary info that he developed over years and years of SCCA racing, but my guess is he reworks the vents and the carb throats so that they're at their very optimum.) And since he has a flow bench, he has verified that his 40s flow like 44s! I'd love to learn more about that someday.

The only other thing I would imagine that is holding you back is the heads, but you mentioned that before.

Still, very impressive dude. You should be proud.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Mar 6 2015, 01:18 PM
Post #22


I am Tangerine Racing
*****

Group: Members
Posts: 7,923
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(ThePaintedMan @ Mar 6 2015, 01:04 PM) *

...
And since he has a flow bench, ...

Its a flowbench of the mind, not one with an existence on the physical plane. (IMG:style_emoticons/default/biggrin.gif)
I use the same tool when I do port work. (IMG:style_emoticons/default/unsure.gif) (IMG:style_emoticons/default/stirthepot.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ThePaintedMan
post Mar 6 2015, 01:58 PM
Post #23


Advanced Member
****

Group: Members
Posts: 3,885
Joined: 6-September 11
From: St. Petersburg, FL
Member No.: 13,527
Region Association: South East States
QUOTE(Racer Chris @ Mar 6 2015, 02:18 PM) *

QUOTE(ThePaintedMan @ Mar 6 2015, 01:04 PM) *

...
And since he has a flow bench, ...

Its a flowbench of the mind, not one with an existence on the physical plane. (IMG:style_emoticons/default/biggrin.gif)
I use the same tool when I do port work. (IMG:style_emoticons/default/unsure.gif) (IMG:style_emoticons/default/stirthepot.gif)


Now THATS why we pay you the big bucks Chris. I can do stuff on "theory" as well, but without the experience you have, I'm still mostly shooting in the dark. (IMG:style_emoticons/default/pray.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Mar 6 2015, 03:18 PM
Post #24


914 Freak!
***************

Group: Members
Posts: 17,146
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None
Nice...must be a blast to drive!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Mar 6 2015, 04:07 PM
Post #25


I am Tangerine Racing
*****

Group: Members
Posts: 7,923
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(ThePaintedMan @ Mar 6 2015, 01:04 PM) *

...
I agree that the carbs are probably holding you back. What vents do you have in those 40s again? Are they 30mm? Eventually it would probably be prudent to get your hands on a set of 44s... or send your 40s to Racer Chris.
...


primary venturis should be 36mm, but a stock 40IDF doesn't work all that well with venturis so big.
The carb inlet diameter is too small.
I can fix that.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jetsetsurfshop
post Mar 6 2015, 04:45 PM
Post #26


Senior Member
***

Group: Members
Posts: 814
Joined: 7-April 11
From: Marco Island Florida
Member No.: 12,907
Region Association: South East States
QUOTE(Racer Chris @ Mar 6 2015, 02:07 PM) *

QUOTE(ThePaintedMan @ Mar 6 2015, 01:04 PM) *

...
I agree that the carbs are probably holding you back. What vents do you have in those 40s again? Are they 30mm? Eventually it would probably be prudent to get your hands on a set of 44s... or send your 40s to Racer Chris.
...


primary venturis should be 36mm, but a stock 40IDF doesn't work all that well with venturis so big.
The carb inlet diameter is too small.
I can fix that.


I did the 34 venturis kit from CB. We did it a while back and the car does like it better. Called Chris to modify the carbs but I was spending so much on the car at that time. Needed to stop the bleeding. Not that it was to expensive, I didn't want to spend anything after the engine build. maybe one day we will get them done right.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
carr914
post Mar 6 2015, 07:02 PM
Post #27


Racer from Birth
****************************************************************************************************

Group: Members
Posts: 118,448
Joined: 2-February 04
From: Tampa,FL
Member No.: 1,623
Region Association: South East States
On a Carb'd Motor, you really need a Carb Expert with a lot of different Jets to do a good Dyno Day.

Good Numbers though - what I expected! (IMG:style_emoticons/default/aktion035.gif)

Similar numbers that I had in this car.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Mar 9 2015, 05:32 PM
Post #28


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States
We got Papa Smurf dyno'd the same week as you!
Not sure you want to see the chart though (IMG:style_emoticons/default/biggrin.gif)
Suffice it to say, I was very happy....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jetsetsurfshop
post Mar 9 2015, 06:09 PM
Post #29


Senior Member
***

Group: Members
Posts: 814
Joined: 7-April 11
From: Marco Island Florida
Member No.: 12,907
Region Association: South East States
QUOTE(naro914 @ Mar 9 2015, 03:32 PM) *

We got Papa Smurf dyno'd the same week as you!
Not sure you want to see the chart though (IMG:style_emoticons/default/biggrin.gif)
Suffice it to say, I was very happy....


Lets see it!! Judging by that video i think your north of 250hp?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Mar 9 2015, 06:17 PM
Post #30


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States
QUOTE(Jetsetsurfshop @ Mar 9 2015, 08:09 PM) *

Lets see it!! Judging by that video i think your north of 250hp?

Just a bit... (IMG:style_emoticons/default/smile.gif)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
wndsrfr
post Mar 9 2015, 07:06 PM
Post #31


Senior Member
***

Group: Members
Posts: 1,428
Joined: 30-April 09
From: Rescue, Virginia
Member No.: 10,318
Region Association: MidAtlantic Region
QUOTE(naro914 @ Mar 9 2015, 04:17 PM) *


Attached Image


Sweet thing is the torque hangs in there 'way up to 7500+, really nice, and what a fine AFR trace--nice tuning!
(IMG:style_emoticons/default/driving.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Mar 9 2015, 07:11 PM
Post #32


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States
Yeah, I was very happy. Ed Senf - who is the race engineer for Rum Bum Racing, engine development manager for Kinetics and engineer for a couple other pro teams - did the tuning. For better or worse, he knows our engine very well...too well if you ask me. (IMG:style_emoticons/default/smile.gif) Notice that we've run 44 runs with him the past couple years...

He got it up to 316 hp and 256 tq, but it was too lean. I don't need to be burning up engines...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ThePaintedMan
post Mar 9 2015, 09:14 PM
Post #33


Advanced Member
****

Group: Members
Posts: 3,885
Joined: 6-September 11
From: St. Petersburg, FL
Member No.: 13,527
Region Association: South East States
(IMG:style_emoticons/default/dry.gif) Whatever. That's a six and on a VERY different budget. And, Shane built his himself. Apple's to oranges. Nice job again Shane.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Mar 10 2015, 06:06 AM
Post #34


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States
QUOTE(ThePaintedMan @ Mar 9 2015, 11:14 PM) *

(IMG:style_emoticons/default/dry.gif) Whatever. That's a six and on a VERY different budget. And, Shane built his himself. Apple's to oranges. Nice job again Shane.

Oh I agree, apples to oranges. Shane's engine is a VERY sweet 4!! HE asked to see it, I wasn't going to post it.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stownsen914
post Mar 10 2015, 11:08 AM
Post #35


Senior Member
***

Group: Members
Posts: 913
Joined: 3-October 06
From: Ossining, NY
Member No.: 6,985
Region Association: None
Nice looking chart, Bob ...

Is that at the wheels?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Mar 10 2015, 11:23 AM
Post #36


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States
QUOTE(stownsen914 @ Mar 10 2015, 01:08 PM) *

Nice looking chart, Bob ...

Is that at the wheels?

Yes, at the wheels.
I meant to take pictures and/or video of the dyno runs, but completely forgot.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stownsen914
post Mar 10 2015, 02:18 PM
Post #37


Senior Member
***

Group: Members
Posts: 913
Joined: 3-October 06
From: Ossining, NY
Member No.: 6,985
Region Association: None
QUOTE(naro914 @ Mar 10 2015, 01:23 PM) *

Yes, at the wheels.



Wow, nice
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · The Paddock · Next Newest »
 

2 Pages V < 1 2
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: 8th May 2024 - 02:54 AM
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 ...