Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools
Author
Thread Post New Thread    Reply
Registered
 
Puma's Avatar
 
Join Date: Sep 2008
Location: Los Angeles
Posts: 685
Quote:
Originally Posted by bcgreen View Post
I understand the MFIs are tough to tune and best left to the professionals. I hope I never need anything done to my MFI while I own it.
How did you learn to tune the MFI?
Check out MFI.com, somebody wrote a book about tuning them. I've never done it.

I know a factory trained MFI specialist who has an entire wall of tools and diagnostic equipment specifically for MFI so I wonder if the investment of tools is worth it?

As for the 2.7, I've got one in pieces and I regularly oscillate between putting a 912 engine back in my car or building up the 2.7. I've never driven a 912 or a 2.7 so I've no idea what it's like. I have a long way to go with my restoration so there's lots of time.

__________________
2001 986 S
Old 09-07-2016, 06:43 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
Registered User
 
Join Date: Oct 2016
Location: PNW
Posts: 22
Garage
I bought my '77 911S in 1995 when I was 18. I definitely wouldn't have been able to afford a 911 at 18 if the mid year 2.7s weren't so hated in the 90's. The previous owner backdated the exhaust, put in an 11 blade fan and pressure fed chain tensionsers, so there have been a few mods. But other than that, 22 years later I have a numbers matching, original paint and interior 911 that I thoroughly enjoy driving on the weekends.

I just started taking her to some local car shows this summer, and I have to say I felt a little out of place in a car that, only a few years ago, I was constantly defending saying things like; "yeah it's a mid year 2.7, but it's has the appropriate updates, it's still fun to drive, and it was the one I could afford when I was 18, so who cares". Also, the color definitely added to the car's "less desirable"
Old 07-31-2017, 02:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
Registered User
 
Join Date: Oct 2016
Location: PNW
Posts: 22
Garage
Sorry, I meant to upload a picture along with post...

Old 07-31-2017, 03:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
Registered
 
Join Date: Jun 2006
Location: Charlotte NC/San Diego CA
Posts: 3,393
Garage
at this point, all 2.7's have been converted to dilivar hardware

nothin left to talk about other than being free reving and great sounding))
Old 07-31-2017, 03:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #44 (permalink)
Registered User
 
Join Date: May 2016
Posts: 30
Garage
I have a 2.7 In my 76! But luckily mine was not a California spec car and did not come with thermal reactors. Currently my motor is pulled, replacing all the oil seals and new heatexhangers and exhaust. But it was running great before I pulled it.
Old 07-31-2017, 04:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #45 (permalink)
Registered
 
Kraftwerk's Avatar
 
Join Date: Oct 2003
Location: Northside, Brooklyn
Posts: 2,368
Its always been my understanding that nicely re-build 2.7 should have better throttle response than the 3.0 or 3.2 and can seem really peppy.
__________________
jt
'83 SC
'96 M3
6 Bicycles

2 Sailboats
Old 08-01-2017, 01:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #46 (permalink)
Vintage Owner
 
Jack Stands's Avatar
 
Join Date: Jun 2013
Location: Park Ridge, IL
Posts: 1,929
Garage
Hopefully the 2.7 engines th had Dilivar studs have been upgraded to the Supertec or other studs that don't suddenly snap and have had case savers installed. Wonderful engines when properly built, though not as bulletproof as the 3.0. None of these engines are cheap to rebuild these days!
__________________
84 Targa (sold)
70 914-6 (sold)
73 914-6 2.7 conversion (sold)
75 GMC Motorhome (sold)
2016 Cayenne
Old 08-02-2017, 10:01 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #47 (permalink)
Registered
 
Join Date: Jul 2008
Location: Next to Mulholland [west]
Posts: 2,559
Garage
I bought my 1973 2.7 MFI 911 from TRE in 1999.
Dave told me that Mark Kininger at Black forest in San Diego had redone the engine and it had 1500 miles on it. It has 5R cases and all the tricks done to it. Well I have been driving it for 19 years.....change the oil every 3000 miles, adjust valves at 10,000 and got the MFI set up will.

I have driven it almost 120,000 miles. No problems. Great compression and just runs well. Wonderful sounding engine that just pulls.

Daytona-Sensors CDI with Hall effect points. AFR gauge Daytona-Sensors permanently installed with warm up regulator manual adjustment.

Sweet running motor. Fuel economy is not great with the MFI, but it hauls!!!!

Thank you Mark for building a great engine that is till going strong after 20 years an 120,000 miles.
__________________
RGruppe #79 '73 Carrera RS spec 2.7 MFI
00 Saab 95 Aero wagon stick
01 Saab 95 Aero wagon auto
03 Boxster
90 Chevy PU Prerunner....1990
Old 06-23-2018, 01:00 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #48 (permalink)
Registered
 
Join Date: Sep 2010
Posts: 3,398
Garage
It all changed with the super high price increases of air cooled cars. I still have my respected 911 buyers guides of 20-30 years that say stay away from the mid years at all cost! They said they were horrible and that the motors when new would go bad at 50,000! The only reason they are selling more now is because of the air cooled huge jump in price. Same with the 912e. A super slow car with less than 100 horses. A real dog that looks nice.
Old 06-23-2018, 03:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #49 (permalink)
Registered
 
Join Date: Mar 2014
Location: toronto
Posts: 745
Garage
I am in a rare camp, it seems.

I, in order of G body preference, go 3.2, 3.0, 2.7 all day long - I've driven many stock and tuned examples of each.

I get that they rev up a little quicker but there is no way a 2.7 0-60 in 8.4 seconds car is gonna 'feel' better to me than my 3.2 (chipped) that I can personally do 5.9 on a country road in. Esp with a set up. Oh - and mine's a targa and still, despite the obvious creaking, feels better than the 2.7s I've driven - in good nick btw

I don't have the fastest car out there and we all have to choose our own feel vs speed sweet spot - but even after driving a 3.0 with the 964 cams and SSIs etc - I was underwhelmed on the back roads compared to my almost stock 3.2. and that was a lightened coupe! It's also why driving perfect tune longhood 911T is ok but not near the joy of a 3.2.

YMMV

Oh - for all that - a narrow G body roller with lightweight everything and 3.2SS -- YES PLEASE - best of ALL worlds - and I also want a 912 next - but that's because a 2.7 is to -- what's the word - middie - neither her nor there. I have WAY more fun in 912 than 2.7 middie
Old 06-23-2018, 03:52 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #50 (permalink)
Registered
 
bcgreen's Avatar
 
Join Date: Dec 2011
Location: River man
Posts: 1,452
Garage
Quote:
Originally Posted by Nick Triesch View Post
It all changed with the super high price increases of air cooled cars. I still have my respected 911 buyers guides of 20-30 years that say stay away from the mid years at all cost! They said they were horrible and that the motors when new would go bad at 50,000! The only reason they are selling more now is because of the air cooled huge jump in price. Same with the 912e. A super slow car with less than 100 horses. A real dog that looks nice.
I disagree. My '76 has been absolutely rock solid and pulls strongly, wailing all the way to 7200.
103,000 and loving it every time I start it up. You can hear me on a Sunday morning a city block away.

__________________
66 Shelby Hertz Renta-Racer
68 Shelby 500KR
78 Ferrrari 308
16 Macan S
11 Speedster

Last edited by bcgreen; 06-23-2018 at 06:03 PM..
Old 06-23-2018, 05:58 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #51 (permalink)
Reply


 


All times are GMT -8. The time now is 07:27 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2026, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.