carson project - boosting power

eios · 14 February 2006, 17:34

someone who can give me some idea how to get additional 100 extra hp for each of my 92 mod. twin cummins 6BTA 5,9l M2 (315hp)

E :-)

Pete7 · 14 February 2006, 18:16

I doubt you are going to be able to get another 100 hp without loosing reliability and some serious engineering, but you will need to talk to Cummins.

Instead how about having the injectors checked to ensure the spray pattern is accurate and the pump checked over so that the engine is back to producing its original hp.

http://www.cmdmarine.com/6bta.html

Pete

codprawn · 14 February 2006, 18:48

On many diesel engines it is possible to adjust the pump which can give pretty impressive power boosts at the expense of economy.

100bhp more is quite a lot to aim for but many people can see improvements of up to 25% with some tweaking.

Another idea is to try one of the new LPG conversions - you don't save on running costs but apparently the engine runs better with more power.

Bigmuz7 · 14 February 2006, 19:26

I agree, not the right choice you could advance them, for some xtra oomf, but you'll be putting out black smoke, and thats not the the way the're meant to run, they will run hotter too 'specially if they have blowers on them You would need to upgrage the cooling ability, but would end up over stressing something else

Jono · 14 February 2006, 19:27

Pete,

I take it that that's the "marinised" version of the "B" series fitted to my trucks? I think mine are rated at 240 continuous...so 315 ain't bad in the first place....

Pete7 · 14 February 2006, 19:58

Jono, could well be, I have been looking at Perkins and Ford (Lancing) but they are different base engine blocks. However they also get 300 hp from 6L for a marine version. I am not sure taking them up any more will a happy event as Bigmuz7 says and they are 1992 engines, so could be down on power from original. However with a check over of the injectors and as Eios says loose some weight then the boat could be transformed. Should know spent two years adding things to the Pacific and watching the speed come down

Pete

eios · 14 February 2006, 20:11

Quote:

Originally Posted by codprawn

On many diesel engines it is possible to adjust the pump which can give pretty impressive power boosts at the expense of economy.

100bhp more is quite a lot to aim for but many people can see improvements of up to 25% with some tweaking.

Another idea is to try one of the new LPG conversions - you don't save on running costs but apparently the engine runs better with more power.

Is there more info on LPG and cummins somewhere?

E :-)

pressman · 14 February 2006, 20:12

I have spoken to Barry this boat has a 2000l fuel capacity. When Eios got the weight the concealed tank must have had fuel in. This boat should be 3500kgs dry weight

codprawn · 14 February 2006, 20:37

Quote:

Originally Posted by eios

Is there more info on LPG and cummins somewhere?

E :-)

LPG with diesels is quite new. One of the biggest companies is IWEMA who are Dutch

http://www.iwemalpg.com/Diesel_LPG.htm

If you do a search for cummins diesel lpg you will find loads of stuff - plenty of companies converting trucks to run on the stuff - mainly to save money on fuel but they do claim upto 25% power increase with much smooother running.

pressman · 14 February 2006, 20:44

Just out of interest how big a tank for lpg would you need to get the same range??

eios · 15 February 2006, 19:26

I sendt a mail to cummins yesterday and asked about increase of power.

-----Got the answer today:

Sell your old engines and buy some bigger new ones.....

Well its the easy way, thats a fact!

pressman · 15 February 2006, 20:29

Or you could sell the whole thing and we'll build you a new boat