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 )

 
Reply to this topicStart new topic
> So how much bigger can you go with your stock FI on a 2.0?, CC's that is...
speed metal army
post Oct 29 2010, 08:46 PM
Post #1


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada



And whats the reliable,proven formula when it comes to cams,pistons etc?
Thanks!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
BigDBass
post Oct 29 2010, 09:20 PM
Post #2


Dumb Question Champion
***

Group: Members
Posts: 1,438
Joined: 11-January 06
From: Chicago (south 'burbs)
Member No.: 5,405
Region Association: Upper MidWest



I believe 2056 is about it with D-Jet with modified MPS.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
speed metal army
post Oct 29 2010, 09:51 PM
Post #3


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada



QUOTE(BigDBass @ Oct 29 2010, 08:20 PM) *

I believe 2056 is about it with D-Jet with modified MPS.

OK,How bout some specifics?A parts list!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
DanT
post Oct 29 2010, 10:58 PM
Post #4


Going back to the Dark Side!
****

Group: Members
Posts: 4,300
Joined: 4-October 04
From: Auburn, CA
Member No.: 2,880
Region Association: None



96mm pistons/cylinders
tweaked MPS
Raby 9550 cam
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
speed metal army
post Oct 29 2010, 11:27 PM
Post #5


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada



QUOTE(DanT @ Oct 29 2010, 09:58 PM) *

96mm pistons/cylinders
tweaked MPS
Raby 9550 cam

Thats what Im after!Tweaked MPS.Elaborate please.Thanks!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Sleepin
post Oct 29 2010, 11:37 PM
Post #6


Advanced Member
****

Group: Members
Posts: 3,647
Joined: 20-November 07
From: Grand Junction, Co.
Member No.: 8,357
Region Association: Rocky Mountains



Sometimes a MPS adjustment is needed to richen things up a tad.


My wife's 2056 is running D-Jet with stock cam and no adjustments to the MPS....but, we are at 4600'.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bleyseng
post Oct 30 2010, 03:51 AM
Post #7


Aircooled Baby!
**********

Group: Members
Posts: 13,034
Joined: 27-December 02
From: Seattle, Washington (for now)
Member No.: 24
Region Association: Pacific Northwest



witha stock cam no adjustment is needed but if you switch to a Raby 9550 cam then you need to adjust the MPS to set the AFR.

2056
Raby 9550 cam
RAby lifters and valve train kit
115hp!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
speed metal army
post Oct 30 2010, 10:39 AM
Post #8


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada



QUOTE(Bleyseng @ Oct 30 2010, 02:51 AM) *

witha stock cam no adjustment is needed but if you switch to a Raby 9550 cam then you need to adjust the MPS to set the AFR.

2056
Raby 9550 cam
RAby lifters and valve train kit
115hp!

Nice.Thanks guys.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Oct 30 2010, 01:41 PM
Post #9


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States



QUOTE(speed metal army @ Oct 29 2010, 08:51 PM) *

QUOTE(BigDBass @ Oct 29 2010, 08:20 PM) *

I believe 2056 is about it with D-Jet with modified MPS.

OK,How bout some specifics?A parts list!


-RAT 9550 valve train kit
-RAT 96mm cylinder and piston kit from KB
- 8-9:1 CR dependent upon operating elevation, deck height set to no more than .045
-42X36 valves in stock, non ported 2.0/914 heads (or RAT LE 180 3 stud heads)

This combo currently nets around 120 FWHP and around 130 lb/ft of torque. It'll net around 100 RWHP on a chassis dyno, about the same on torque. With the LE 180 heads we are seeing 130HP and 140 TQ at the flywheel.

Its all in the combo. Goof it up and it won't be tunable, stock EFI is very particular to every alteration made to the engine. This combo is exceptionally proven and has been applied for over a decade :-)
The engine will run cooler, will make more power and will average better fuel economy through increased efficiency.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
speed metal army
post Oct 30 2010, 06:49 PM
Post #10


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada



QUOTE(Jake Raby @ Oct 30 2010, 12:41 PM) *

QUOTE(speed metal army @ Oct 29 2010, 08:51 PM) *

QUOTE(BigDBass @ Oct 29 2010, 08:20 PM) *

I believe 2056 is about it with D-Jet with modified MPS.

OK,How bout some specifics?A parts list!


-RAT 9550 valve train kit
-RAT 96mm cylinder and piston kit from KB
- 8-9:1 CR dependent upon operating elevation, deck height set to no more than .045
-42X36 valves in stock, non ported 2.0/914 heads (or RAT LE 180 3 stud heads)

This combo currently nets around 120 FWHP and around 130 lb/ft of torque. It'll net around 100 RWHP on a chassis dyno, about the same on torque. With the LE 180 heads we are seeing 130HP and 140 TQ at the flywheel.

Its all in the combo. Goof it up and it won't be tunable, stock EFI is very particular to every alteration made to the engine. This combo is exceptionally proven and has been applied for over a decade :-)
The engine will run cooler, will make more power and will average better fuel economy through increased efficiency.

I want this stuff. (IMG:style_emoticons/default/smile.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
majkos
post Oct 31 2010, 07:43 AM
Post #11


Senior Member
***

Group: Members
Posts: 1,370
Joined: 29-February 04
From: Mile High 914
Member No.: 1,729
Region Association: Rocky Mountains



QUOTE(Sleepin @ Oct 29 2010, 09:37 PM) *

Sometimes a MPS adjustment is needed to richen things up a tad.


My wife's 2056 is running D-Jet with stock cam and no adjustments to the MPS....but, we are at 4600'.

Flatlanders (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
majkos
post Oct 31 2010, 07:49 AM
Post #12


Senior Member
***

Group: Members
Posts: 1,370
Joined: 29-February 04
From: Mile High 914
Member No.: 1,729
Region Association: Rocky Mountains



QUOTE(speed metal army @ Oct 30 2010, 04:49 PM) *

QUOTE(Jake Raby @ Oct 30 2010, 12:41 PM) *

QUOTE(speed metal army @ Oct 29 2010, 08:51 PM) *

QUOTE(BigDBass @ Oct 29 2010, 08:20 PM) *

I believe 2056 is about it with D-Jet with modified MPS.

OK,How bout some specifics?A parts list!


-RAT 9550 valve train kit
-RAT 96mm cylinder and piston kit from KB
- 8-9:1 CR dependent upon operating elevation, deck height set to no more than .045
-42X36 valves in stock, non ported 2.0/914 heads (or RAT LE 180 3 stud heads)

This combo currently nets around 120 FWHP and around 130 lb/ft of torque. It'll net around 100 RWHP on a chassis dyno, about the same on torque. With the LE 180 heads we are seeing 130HP and 140 TQ at the flywheel.

Its all in the combo. Goof it up and it won't be tunable, stock EFI is very particular to every alteration made to the engine. This combo is exceptionally proven and has been applied for over a decade :-)
The engine will run cooler, will make more power and will average better fuel economy through increased efficiency.

I want this stuff. (IMG:style_emoticons/default/smile.gif)

You got me sold! Too bad I've no money (IMG:style_emoticons/default/sad.gif)
But Ive still a running 914 (IMG:style_emoticons/default/aktion035.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 16th May 2024 - 03:49 PM