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
> RAT 2056 on the dyno
poorsche914
post Nov 17 2015, 08:00 PM
Post #1


T4 Supercharged
****

Group: Members
Posts: 3,090
Joined: 28-May 09
From: Smoky Mountains
Member No.: 10,419
Region Association: South East States
My 2056 is alive! (IMG:style_emoticons/default/cheer.gif)
Jake tuned it today expecting to get 125-130hp.
This build hit 145@6500 (IMG:style_emoticons/default/aktion035.gif)


https://www.youtube.com/watch?v=jqu5GMNFA44


(IMG:style_emoticons/default/driving.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Racer
post Nov 17 2015, 08:08 PM
Post #2


Senior Member
***

Group: Members
Posts: 787
Joined: 25-August 03
From: Northern Virginia
Member No.: 1,073
Region Association: MidAtlantic Region
Nice!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
trojanhorsepower
post Nov 17 2015, 08:18 PM
Post #3


Senior Member
***

Group: Members
Posts: 861
Joined: 21-September 03
From: Marion, NC
Member No.: 1,179
Region Association: None
Nice Steve,
I guess you don't want to win that trophy again!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
poorsche914
post Nov 17 2015, 08:22 PM
Post #4


T4 Supercharged
****

Group: Members
Posts: 3,090
Joined: 28-May 09
From: Smoky Mountains
Member No.: 10,419
Region Association: South East States
QUOTE(trojanhorsepower @ Nov 17 2015, 09:18 PM) *
Nice Steve,
I guess you don't want to win that trophy again!

Don't want to be anywhere near it! (IMG:style_emoticons/default/happy11.gif)

(IMG:style_emoticons/default/driving.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
hot_shoe914
post Nov 17 2015, 08:54 PM
Post #5


on ramp passer
****

Group: Members
Posts: 3,802
Joined: 20-November 07
From: Earle, Ar.
Member No.: 8,354
Region Association: None
What kind of torque numbers did you get?
(IMG:style_emoticons/default/confused24.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Nov 17 2015, 09:15 PM
Post #6


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Mid 150s torque at 4000- 5000 RPM.

Idles at 850 like its stock.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
malcolm2
post Nov 17 2015, 09:48 PM
Post #7


Advanced Member
****

Group: Members
Posts: 2,745
Joined: 31-May 11
From: Nashville
Member No.: 13,139
Region Association: South East States
Right on Steve.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jetsetsurfshop
post Nov 17 2015, 09:52 PM
Post #8


Senior Member
***

Group: Members
Posts: 814
Joined: 7-April 11
From: Marco Island Florida
Member No.: 12,907
Region Association: South East States
Nice numbers. (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ConeDodger
post Nov 17 2015, 09:55 PM
Post #9


Apex killer!
***************

Group: Members
Posts: 23,588
Joined: 31-December 04
From: Tahoe Area
Member No.: 3,380
Region Association: Northern California
Nice! For a long time now I've thought that the 2056 is the perfect TypeIV. Entertaining, reliable, manners, longevity... Congrats!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bulldog9
post Nov 17 2015, 09:58 PM
Post #10


Senior Member
***

Group: Members
Posts: 705
Joined: 21-August 13
From: United States
Member No.: 16,283
Region Association: MidAtlantic Region
Care to share specs?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
siverson
post Nov 17 2015, 10:19 PM
Post #11


Advanced Member
****

Group: Benefactors
Posts: 2,448
Joined: 5-May 03
From: San Diego, CA
Member No.: 654
Region Association: Southern California
QUOTE(Steve Pratel @ Nov 17 2015, 07:58 PM) *

Care to share specs?




Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bulldog9
post Nov 17 2015, 10:25 PM
Post #12


Senior Member
***

Group: Members
Posts: 705
Joined: 21-August 13
From: United States
Member No.: 16,283
Region Association: MidAtlantic Region
No doubt............. (IMG:style_emoticons/default/shades.gif)


QUOTE(siverson @ Nov 18 2015, 12:19 AM) *

QUOTE(Steve Pratel @ Nov 17 2015, 07:58 PM) *

Care to share specs?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Nov 17 2015, 10:56 PM
Post #13


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
I'll post a dyno graph tomorrow. This is the strongest combo like this we have done in a long time.

I seldom build a 2056, this is the only one we've done all year, and likely may be the last. The cost to build this engine is so similar to the 2270, that we seldom look to this combo for power.

The nice thing is this one does not require external oil cooling, or some other sub- systems that larger engines need.

I am likely to build this combo for my own VW Thing, just to keep the install cleaner, but since I don't need more than 5K, I'll change the cam and head profile for more TQ and less HP.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Nov 18 2015, 01:31 AM
Post #14


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Here's the final dyno plot. Much more "peaky" than a 2270, but this thing will really come on strong in the midrange. With a slightly different tuning method I could flatten the TQ out some, with a loss of some HP. We'll see how he likes it this way.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Zimms
post Nov 18 2015, 05:58 AM
Post #15


Senior Member
***

Group: Members
Posts: 1,413
Joined: 11-February 06
From: Michigan
Member No.: 5,565
Region Association: Upper MidWest
Nice work Jake! Congratulations Steve! Long time coming.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
johannes
post Nov 18 2015, 06:11 AM
Post #16


Club Porsche 914 France President
****

Group: Members
Posts: 3,084
Joined: 13-January 06
From: France
Member No.: 5,409
Region Association: France
72 hp / liter ... great achievement.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Olympic 914
post Nov 18 2015, 07:32 AM
Post #17



***

Group: Members
Posts: 1,670
Joined: 7-July 11
From: Pittsburgh PA
Member No.: 13,287
Region Association: North East States
QUOTE(Jake Raby @ Nov 18 2015, 02:31 AM) *



Attached Image


Is there a typo?

It looks to me that the pink line would be the Tq and the blue/purple line the Hp

Generally the Tq does not keep climbing as the RPMs increase toward redline.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dlee6204
post Nov 18 2015, 08:38 AM
Post #18


Howdy
****

Group: Members
Posts: 2,162
Joined: 30-April 06
From: Burnsville, NC
Member No.: 5,956
When's the install party? (IMG:style_emoticons/default/driving.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Nov 18 2015, 09:06 AM
Post #19


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Yep, template got me! The Tq is the pink plot. Thats what I get for working 23 hours straight.

This is a powerful engine for what it is. Adding less than 90ccs netted a solid 50HP over stock performance.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JmuRiz
post Nov 18 2015, 09:13 AM
Post #20


914 Guru
*****

Group: Members
Posts: 5,427
Joined: 30-December 02
From: NoVA
Member No.: 50
Region Association: MidAtlantic Region
What a great motor...very nice power from a small (cc) improvement.

Awesome plug-n-play motor solution.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · 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: 17th May 2024 - 08:48 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 ...