Porsche Technical Discussions Porsche related technical discussions and questions go here. |
|
Thread Tools | Display Modes |
#11
|
||||
|
||||
I've seen a few with a Supercharger added for more hp.. Some were reliable, some weren't.
__________________
Dave - 1970 914-6 Past - 2000 Boxster - 1987 944 - 1987 924S - 1978 911 Euro SC - 1976 914 2.0 - 1970 914 1.7 / 2056cc |
#12
|
||||
|
||||
The reliable conversions tend to be the ones that don't get driven much.......
__________________
http://vimeo.com/29896988 “Those that can make you believe in absurdities can make you commit atrocities.” Voltaire. "There is grandeur in this view of life...." Darwin. The mountains are calling and I must go. “The earth has music for those who listen” Shakespeare. You Matter. (Until you multiply yourself times the speed of light squared. Then you Energy) “We’ve got lots of theories, we just don’t have the evidence’. |
#13
|
||||
|
||||
I'm struggling to remember a turbo conversion that lasted a whole DE weekend. I have driven two supercharged conversions to failure in one session each. Neither were 20 year old cars.
__________________
Bob 04 GT3 86 Carrera 97 318ti "Guys, I'm coming in, I have too much grip." |
#14
|
||||
|
||||
You could get good power with a 3.2 rebuild to 3.4 or 3.5...that's another option. It'd look the same but pack an additional 50hp punch.
__________________
'64 356 SC '73 914 2.0 (2.8/6 conversion in progress) '65 Falcon 80 ‘19 SQ5 Gone but not forgotten: '02 S6 Avant - trans blew, but rebuilt as a 6-speed by new owner '99.5 A4 2.8QT - tree fell on it after 20 years ‘74 MB 280C - traded for paint/rust repair/6-conversion mods on the 914 |
#15
|
||||
|
||||
I had a student with a supercharged 993 at VIR. It lasted the weekend with no problems, but I don't think the car ever got over 90 MPH (older driver).
__________________
Peter (not "Pete") K. 2016 Cayman S 1999 Miata ("SM") race car 2016 Toyota Highlander--tow vehicle/wife's DD 2017 VW GTI SE (DD) Gone and missed: 1992 Miata ("SSM") race car 2009 911 C2S Coupe 2004 Toyota Prius - sold to son's girlfriend 2006 Dodge Durango 2003 Acura MDX 86 Black 911 Coupe race car 86 Gold 911 Targa 82 WineRedMetallic 911 Targa |
#16
|
||||
|
||||
Quote:
You da' man! What kind of cheapest engine management system were you using, or which you would recommend? Thanks. |
#17
|
||||
|
||||
Quote:
So, the cheapest on any low boost conversion- use a pressure-rising fuel regulator on the return side of the fuel rail and retarding the base ignition timing manually by setting the distributor. This IS the cheapest fuel/ignition "management" method, its usually good enough for hard thrashing on street and 1/4-mile runs, but perfect example of not good enough for HPDE use. Next step up is the get a MSD(or some other brand) boost ignition retard device and secondary fuel injector(s) which was very popular for 930/C2 Turbo cars with CIS(I think ANDIAL started this trend on 930's). When set properly, this then is good enough for HPDE. Edit: Next step up is to replace stock fuel injectors with 36-lb or 42-lb or up to 72-lb injectors, add Bosch Motorsport fuel pump, and custom programmed EPROM chip for stock DME. This method is same level as OEM and RUF. What I really recommend and want to do is a standalone ECU such as Motec, Haltech, Bosch Motorsport and dyno tune on a built engine. But this'd then turn a 1-week shop project to 6 months+ project and cost approach or at 6 digits including the engine build. Due to the extensive nature of this level of work only ~5% of the conversions were built to this level. Suitable for street, HPDE, club and pro racing. Seasoned companies such as TPC, IMA, Intersport, Jerry Woods, Kelly-Moss, AJR just to name a few have done such conversions with great success. Last edited by TomChan; 08-30-2017 at 05:48 PM. Reason: Missed a step, see edit |
#18
|
||||
|
||||
^
Cheap = Motor blows up. Right = Budget blows up. Gonzo's Re-manufactured Engine Non-stock Accessories Development Enterprise. GRENADE.inc
__________________
http://vimeo.com/29896988 “Those that can make you believe in absurdities can make you commit atrocities.” Voltaire. "There is grandeur in this view of life...." Darwin. The mountains are calling and I must go. “The earth has music for those who listen” Shakespeare. You Matter. (Until you multiply yourself times the speed of light squared. Then you Energy) “We’ve got lots of theories, we just don’t have the evidence’. |
#19
|
||||
|
||||
__________________
Dave - 1970 914-6 Past - 2000 Boxster - 1987 944 - 1987 924S - 1978 911 Euro SC - 1976 914 2.0 - 1970 914 1.7 / 2056cc |
#20
|
|||
|
|||
Hey Tom,
Can't the oil gravity drain into the drain plug or tap into the bottom of the chain housing cover? A electric oil pump sounds sketchy. Chris |
Thread Tools | |
Display Modes | |
|
|