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-   -   New engine build Scania DC1601 for our semi truckpuller. (http://www.competitiondiesel.com/forums/showthread.php?t=141728)

tall boy 12-02-2012 02:26 PM

We did have the engine up to about1100 to 1200Hp and 3Bar or 43PSI boost and then we blow up the flexible exhaust tubing between the turbo and the muffler system twice so tomorrow we going to modify it and hope the mufflers will not create a lot of back pressure.
Good thing is we can connect some more pressure sensors so I can log some more data to see what going on.

http://www.mijnalbum.nl/GroteFoto-BJRPEODF.jpg

tall boy 12-05-2012 01:58 PM

I finally got my turbo speed sensor installed and able to plot out the speed and boost pressure in the compressor flowmap.
Still struggling to get cylinder 5 to 8 to burn a lot more fuel, hope changing the fuel feed rail will solve it.

http://www.mijnalbum.nl/Foto-X6MWDITX.jpg

tall boy 12-07-2012 01:33 AM

We just finished the first part of our testing on the dyno going over 1500Kw and 5KNm.

nwpadmax 12-07-2012 02:51 PM

This is great stuff....please keep it coming.....looks like a dream job!

DIESEL_POWER 12-07-2012 06:11 PM

Yes this is a great read!!


JSP, whats up with Nira are they done selling in the US?

mq105 12-07-2012 06:52 PM

Quote:

Originally Posted by tall boy (Post 1952733)

Love the "filter." :poke:

Great thread so far.

tall boy 12-09-2012 06:35 AM

Quote:

Originally Posted by nwpadmax (Post 1954714)
This is great stuff....please keep it coming.....looks like a dream job!

Well not always. It can be frustrating and it takes a lot of man hours to solve problems.
For example yesterday I was working on a 2L VW TDI and we have loads of problems with the timing sensor mounted on a flimsy support installed by a customer that is used to installed petrol ECU system and a trigger wheel on the front end of the crank pulley. This makes you think why Cummins used a timing sensor mount on the ISB or QSB engines thatís is solid bold to the engine block to prevent vibrations.
Also donít under estimate the amount of R&D to get some engine models running but yes it great fun after when you get the job done.

Quote:

Originally Posted by mq105 (Post 1954898)
Love the "filter." :poke:

Great thread so far.

Well itís a bit more than an air filter. Most of it is safety to prevent you from sticking your finger inside the compressor (a old college had this happen while bending over an engine) and the intake cover is also there to prevent compressor wheel parts flying every where when we have a wheel burst during a run. Looks like this piece of art created by massive power. :huh::

http://www.mijnalbum.nl/Foto-QBULAGUQ.jpg

Need is say mare :umno:

tall boy 12-15-2012 09:08 AM

The new build commonrail Detroit also used for semi truckpulling is ready and we hope to start it coming Monday. When that is done we going to break it in on the dyno.
The engine got a modified BOSCH commonrail system on it and the injectors can easy do 1cc per injection within a given time.

http://www.mijnalbum.nl/Foto-UTBPZJO4.jpg
http://www.mijnalbum.nl/Foto-7ADYBPKP.jpg

tall boy 12-17-2012 01:59 PM

New build V12 for semi truckpulling engine for team FTF has made is madden run.
Start RPM is a bit low with only 106RPM so we had to help it a bit with the cold start but ones it fired up it run very clean considering it got very large injectors.

Next step is breaking in the engine and load testing.



DLV8 12-17-2012 02:12 PM

I want to see that detroit in action! One thing is for sure, you Sir have some mad skills!

DIESEL_POWER 12-17-2012 10:27 PM

Very nice work!

tall boy 12-31-2012 05:46 AM

A small update. We decided to go for a BorgWarner S400 turbochargers but the downside is that the turbo we want has a T4 flange and we need one with a T6. Are there any options.

Also the 87mm turbine wheel and the 1.25A/R looks a bit small as we want to run 58PSI and well over 1000Hp per turbo. Will the LDP wheel be an option and how good is it. Thing is so far with Holset we run there turbochargers less than 10% over RPM and 0.7 to 0.8 over pressure rating and they blow up after 15 to 20 seconds so we got that worked out for the last 3 years costing a lot of money and championship points so Iím a bit nervous making a decision on what turbocharger to use next year making it possible to run more power and a wider RPM range.

CurtisEmery 01-10-2013 07:27 PM

Have you looked at any garrett models?

tall boy 01-11-2013 05:24 PM

Quote:

Originally Posted by CurtisEmery (Post 1982858)
Have you looked at any garrett models?

Yes I did but I do not have aces to the data I need and they way to expensive to start testing and find out what it will do.

CurtisEmery 01-11-2013 06:23 PM

What kind of info are you looking for? There is a ton of knowledgeable people on this site that have access to garrett info. If I can be of assistance I would be happy to dig around if you have the specs you require.

tall boy 01-12-2013 12:28 PM

Quote:

Originally Posted by CurtisEmery (Post 1983626)
What kind of info are you looking for? There is a ton of knowledgeable people on this site that have access to garrett info. If I can be of assistance I would be happy to dig around if you have the specs you require.

For now I can not find any benefit of running a Garrett, flow maps are to narrow from what I can find on the internet so yes it would be interesting to compare some flow maps from Garrett and come to a conclusion.

CurtisEmery 01-12-2013 06:21 PM

How many pounds per minute, and what pressure ratio? Also how much turbine flow do you require? It looks like you were using hx60 based stuff in earlier pictures. If that is the case I would be leaning towards something gt50 based with garretts 82mm billet 7 bladed comp wheel. I believe they flow about 120lbs/min. A gt55's might be an option as well.

tall boy 01-13-2013 05:18 AM

Quote:

Originally Posted by CurtisEmery (Post 1984215)
How many pounds per minute, and what pressure ratio? Also how much turbine flow do you require? It looks like you were using hx60 based stuff in earlier pictures. If that is the case I would be leaning towards something gt50 based with garretts 82mm billet 7 bladed comp wheel. I believe they flow about 120lbs/min. A gt55's might be an option as well.

Can you get me the data from the 769210-20 and 769210-24 from Garrett? We are running a pressure ratio of 5 from the surge line way to up what the turbo can handle within his normal RPM rance.

CurtisEmery 01-13-2013 07:35 AM

I will see what I can come up with.

tall boy 01-18-2013 02:37 AM

Quote:

Originally Posted by CurtisEmery (Post 1984632)
I will see what I can come up with.

Any progress on finding some Garrett flowmaps?


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