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 )

> How about some torque....., Here is a serious dose
Jake Raby
post Mar 21 2007, 03:49 PM
Post #1


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Look at that fat, flat torque curve!!!

Look at this! This engine uses one of my new 9700 series cams (non roller) coupled with LE 200-102 heads and 8.5:1 CR!!!!!

It uses RAT SDS EFI/ direct ignition with 45mm T/B and a 1-3/4" Tangerine header.

The engine is for a 2007 Intermeccanica Speedster and belongs to a European customer... I think he'll be really pleased with the torque curve and overall output this MassIVe engine provides. I am building one of these in 6 weeks for a 914 application, so I thought I'd share some numbers..

Lets don't start a "six Vs four" debate with this one and before you ask me how much it cost I'll go ahead and say "enough" as sharing the cost of this custom engine publicly would not be fair to my client.

We have been raising the bar higher and higher almost weekly for the last six months, 7 months ago this engine made 15% less power with another full digit of CR!


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
2 Pages V  1 2 >  
 Reply to this topicStart new topic
Replies(1 - 19)
r_towle
post Mar 21 2007, 03:53 PM
Post #2


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Im not gonna ask how much, but how big?
Is that a 2270?

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BigDBass
post Mar 21 2007, 03:54 PM
Post #3


Dumb Question Champion
***

Group: Members
Posts: 1,438
Joined: 11-January 06
From: Chicago (south 'burbs)
Member No.: 5,405
Region Association: Upper MidWest
My guess is 2680.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brando
post Mar 21 2007, 03:56 PM
Post #4


BUY MY SPARE KIDNEY!!!
****

Group: Members
Posts: 3,935
Joined: 29-August 04
From: Santa Ana, CA
Member No.: 2,648
Region Association: Southern California
What's the displacement on that engine Jake?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 21 2007, 03:58 PM
Post #5


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Its actually a 2615, the file name was 2680 as I was comparing it to a 2680 in an overlay prior to this screen shot :-)

Not bad for an engine that will run on 87 octane and idles at 700 RPM...

I expect to break 200HP at less than 9:1 with a 2270 next week for the first time ever on pump gas...

BUT the build up of the engine for the Television show might hinder that a couple of weeks...

This post has been edited by Jake Raby: Mar 21 2007, 04:00 PM
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BigDBass
post Mar 21 2007, 03:59 PM
Post #6


Dumb Question Champion
***

Group: Members
Posts: 1,438
Joined: 11-January 06
From: Chicago (south 'burbs)
Member No.: 5,405
Region Association: Upper MidWest
<Maxwell Smart voice> Missed it by that much!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Gint
post Mar 21 2007, 06:11 PM
Post #7


Mike Ginter
***************

Group: Admin
Posts: 16,096
Joined: 26-December 02
From: Denver CO.
Member No.: 20
Region Association: Rocky Mountains
So, what happens from idle to 3k rpm?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Aaron Cox
post Mar 21 2007, 06:33 PM
Post #8


Professional Lawn Dart
***************

Group: Retired Admin
Posts: 24,541
Joined: 1-February 03
From: Corona, CA
Member No.: 219
Region Association: Southern California
QUOTE(Gint @ Mar 21 2007, 05:11 PM) *

So, what happens from idle to 3k rpm?


think of it as a 911 S motor... until it gets on the cam... its irrelevant...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
PinetreePorsche
post Mar 21 2007, 06:48 PM
Post #9


Member
**

Group: Members
Posts: 235
Joined: 14-November 05
From: Falls Church, VA
Member No.: 5,124
QUOTE(Jake Raby @ Mar 21 2007, 01:58 PM) *

Its actually a 2615, the file name was 2680 as I was comparing it to a 2680 in an overlay prior to this screen shot :-)

Not bad for an engine that will run on 87 octane and idles at 700 RPM...

I expect to break 200HP at less than 9:1 with a 2270 next week for the first time ever on pump gas...

BUT the build up of the engine for the Television show might hinder that a couple of weeks...


At today's prices, 93 octane is only 10% more $ than regular. So what can you do for us at a safe compression for the high test (9.5, maybe?--you tell me). You've got a lot of potential customers waiting out here for strong, light, and reliable, and we don't care what it runs on. 4-cylinders 4ever!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 21 2007, 07:08 PM
Post #10


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
[/quote]

At today's prices, 93 octane is only 10% more $ than regular. So what can you do for us at a safe compression for the high test (9.5, maybe?--you tell me). You've got a lot of potential customers waiting out here for strong, light, and reliable, and we don't care what it runs on. 4-cylinders 4ever!
[/quote]

95% of my engines demand premium fuel.. This engine was different as it will be used in some remote parts of Europe on long trips and higher octane fuel may not be available so I engineered some flexability in it's creation- thats the benefit of a custom engine program.

QUOTE
think of it as a 911 S motor... until it gets on the cam... its irrelevant...

That could not be further from the truth! These big engines make huge torque at very low revs- I just didn't inclue those values in this screen shot I posted- I will attach another that illustrates them below.

The HUGE advantage that a big engine like this has for a street car is the big flat torque curve at lower revs which really promotes drivability and keeps things very fun, if you are like me moking the tires on demand is always fun in 3rd gear. You can look at the peak torque point and see how much lower it is than a comparable output six..

This engine is built for long distance, intercontinental European cruising with tall gears in an Intermeccanica Roadster more than anything- it gives the term "dual purpose" a new definition. This combination LOVES the stock gearing of a 914 as well.

Thats right this engine pulled as low as 1,500 RPM at wide open throttle and still made power.. Thats the glory of I?R Engine Management and a correctly configured engine that it's feeding..... I actually pulled the engine to 1,000 RPM but didn't save that data ;-)
Attached Image

This baby is on the cam at damn near idle! It really starts to wake up through the dyno controls around 2,300 RPM and then comes on harder around 3,400 when the heads really wake up and port velocity increases..

This is a daily driver- remember that.....

This post has been edited by Jake Raby: Mar 21 2007, 07:12 PM
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chris Pincetich
post Mar 21 2007, 07:15 PM
Post #11


B-)
****

Group: Members
Posts: 2,082
Joined: 3-October 05
From: Point Reyes Station, CA
Member No.: 4,907
Region Association: Northern California
Nice!
Put in in first gear, let it idle, and I bet it would climb a pretty good grade with all that torque. I can't wait until the Roller2270+SDS retro kit comes out (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914forme
post Mar 21 2007, 07:19 PM
Post #12


Times a wastin', get wrenchin'!
****

Group: Members
Posts: 3,896
Joined: 24-July 04
From: Dayton, Ohio
Member No.: 2,388
Region Association: None
Jake that is one sweet daily driver engine. As allways thanks for sharing. And keeping the dream alive.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 21 2007, 09:21 PM
Post #13


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Sure!!!!!!

Torque Rules!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pete-stevers
post Mar 21 2007, 09:24 PM
Post #14


saved from fire!
****

Group: Members
Posts: 2,648
Joined: 10-October 04
From: Abbotsford,BC, Canada
Member No.: 2,914
Region Association: Pacific Northwest
jake even a veggie guy can put up graphs.....
but lets see some pics dude....
of the engine...EH???
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 21 2007, 09:44 PM
Post #15


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
It's not spectacular on the outside... Just the regular old DTM equipped conversion engine with EFI and a Tangerine header!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Mar 21 2007, 09:46 PM
Post #16


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
do you have a picture of a regular old DTM converted motor running your EFI?
I am curious how that looks together, and if the system has the jewel look I need.

rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 21 2007, 09:53 PM
Post #17


Engine Surgeon
*****

Group: Members
Posts: 9,398
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Version 1 or Version 2 or 914 DTM??? :-)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Mar 21 2007, 10:00 PM
Post #18


Custom Member
***************

Group: Members
Posts: 24,705
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Whatever I would buy in the next few months...

I am building a jewelry box, and its important for the jewel to be properly attired...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jwalters
post Mar 21 2007, 10:14 PM
Post #19


Sooo Close.......
***

Group: Members
Posts: 1,677
Joined: 14-May 04
From: Huntsville, AL
Member No.: 2,068
Region Association: Europe
QUOTE(r_towle @ Mar 22 2007, 12:00 AM) *

Whatever I would buy in the next few months...

I am building a jewelry box, and its important for the jewel to be properly attired...




(IMG:style_emoticons/default/blink.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brando
post Mar 21 2007, 11:02 PM
Post #20


BUY MY SPARE KIDNEY!!!
****

Group: Members
Posts: 3,935
Joined: 29-August 04
From: Santa Ana, CA
Member No.: 2,648
Region Association: Southern California
QUOTE(r_towle @ Mar 21 2007, 08:00 PM) *

Whatever I would buy in the next few months...

I am building a jewelry box, and its important for the jewel to be properly attired...
We now officially have 1 pinky-lifter teener owner! (IMG:style_emoticons/default/chairfall.gif)
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: Switch to: Standard · Linear+ · Switch to: Outline

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

- Lo-Fi Version Time is now: 9th May 2025 - 01:57 PM
Invision Power Board v9.1.4 © 2025  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 ...