installation of TrePerformance TRE-340 fuel pumps in 750iL

[shogun]

I post that here, because if it fits the E32 750, it will also fit many E34 cars, dimensions are given, 60 pics
http://www.bimmerboard.com/forums/posts/710531

[eaglecomm]

Yep, that will work on the E34s.. its also the one Acet did a DIY writeup on. Same number pump and all. Good stuff that more people are trying it... makes me more confident in the future to try one out when needed.....

http://forums.bimmerforums.com/forum....php?t=1245212

[shogun]

Acet finally gave me the data for the pump (dimensions), and that is why I recommended it also for the E32 to some people. Acet made a very detailed write up on this, very informative and as usual, pics are best to explain. Special thanks to him, I mentioned that in his write up already that they also fit E32.

Especially for 750 owners it is very costly to buy original Bosch pumps, even the cheapest source is asking for > $200 and times 2 pumps it usually cost approx. 500-600 US$, no it comes down to approx. $140.00 for 2 Tre-Performance pumps.
What we do not yet know is the long time experience with these pumps. Do they also run 15-20 years like the Bosch pumps do? In 20 years we will know ;-)

[BigKriss]

Good find on a nice cheap fuel pump

[genphreak]

Love your work Shogun. My pumps have been buzzin for years, I know I'm going to need a newie or three soon. They wil be TRE-255s for sure! Thank you!!!

[shogun]

in Australia you can use GOSS for your car, from OZ
http://www.noelsautoparts.com.au/goss.htm
http://www.supercheapauto.com.au/onl...eviews#reviews
someone on Bimmerboard is using them on his E32 740 and also on his Jaguar V12

[Bo525i]

Just got a TrePerformance TRE-340, cheap even with shipping and it only took 2 days to reach Scandinavia from CA! Pretty cool..

Its installed as per Acets description and all seems well so far, altho it seems to me that there´s a slight depth problem, not so much in the bottom but on top it sits a lot deeper that the original! Live terminals and gasoline? Someone tell me that it doesn´t matter plz.. (shogun?)

[shogun]

as long as the terminals are inside the gasoline, no problem. The original fuel pump also has live terminals.
For explosions you need a fuel-air mixture = vapor

The Auto-Ignition Temperature - or the minimum temperature required to ignite a gas or vapor in air without a spark or flame being present - are indicated for some common fuels below:
http://www.engineeringtoolbox.com/fu...res-d_171.html
http://www.epa.gov/fedrgstr/EPA-GENE...y-03/g8495.htm

Diesel
http://hypertextbook.com/facts/2005/EileenTang.shtml

Autoignition temperature
Autoignition point of selected substances
Temperatures vary widely in the literature and should only be used as estimates. Factors which may cause variation include partial pressure of oxygen, altitude, humidity, and amount of time required for ignition.

Triethylborane: −20 °C (−4.0 °F)
Silane: <21 °C (70 °F)
White phosphorus: 34 °C (93 °F)
Carbon disulfide: 90 °C (194 °F)
Diethyl ether: 160 °C (320 °F)[3]
Diesel or Jet A-1: 210 °C (410 °F)
Paper: 218–246 °C (424–475 °F)[4]
Gasoline (Petrol): 246–280 °C (475–536 °F)[5]
Magnesium: 473 °C (883 °F)
Butane: 405 °C (761 °F)[6]
Hydrogen: 536 °C (997 °F)[7]
http://en.wikipedia.org/wiki/Autoignition

How much did you pay for shipping to Scandinavia?

[Bo525i]

Thanks a million Shogun, I´ve settled down now!