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New 6.9 purchase

Started by motec6.9, 15 April 2014, 07:06 AM

motec6.9

Ok I am waiting for dyno run at Genie . But here are dome pictures while I am waiting.
Euro 6.9 255.6hp at the wheels. Watch this space.

motec6.9

#76
https://www.youtube.com/watch?v=WpAmhfiHOZo&feature=youtu.be
https://www.youtube.com/watch?v=Y6VAxFI60e0&feature=youtu.be
Ok todays dyno run on YouTube . Car sounds great very happy with finished results. Genie hoping to have car finished tomorrow with throttle body fitted and final dyno run. Results so far 256.8hp at the rear wheels. 26.7hp gain.
Euro 6.9 255.6hp at the wheels. Watch this space.

TJ 450

Awesome! I would expect to see a fair increase with the new TB, as I'm sure that's the bottleneck now.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

motec6.9

 Run was delayed due to dyno malfunction so it was done on another dyno. So they said they will do throttle body run on same dyno as today to see difference throttle body makes . Then it will go onto original dyno for a total power increase result as different dynos can read differently. todays dyno was old rolling road dyno across the road from Genie at rego pollution clearance workshop. So I will be able to tell you how much throttle body makes then how much overall . Oh and these arrived last week . Just need cams from UK with 278 duration to arrive.  ;D
Euro 6.9 255.6hp at the wheels. Watch this space.

TJ 450

Hey motec, are those sprockets made specifically for this application? I'm surprised to see these being available for an M-100!?

The videos are impressive... I hope they had a fan set up there. :)

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

motec6.9

Hi Tim yes they are for M-100.985 I have bought billet cams from the UK in AMG 278 duration profile from there 375hp 6.9 engine package. These will be fitted to engine with cams will clean up heads while doing this. As for fan on dyno I was standing next to it.  :) Throttle body should be on tomorrow and ready for next dyno run.  ;D
Euro 6.9 255.6hp at the wheels. Watch this space.

motec6.9

Any body for a 3 AM drive by. At full noise.  :o
Euro 6.9 255.6hp at the wheels. Watch this space.

nathan

sounds great Motec, and they look the part too.
did i understand right, the dyno run was not done on the same dyne as 'pre op'. this would mean the results mean nothing?
hopefully they could redo the run for you on the original dyno so you know what you got out of the exhaust, otherwise it remains a mystery!
one way or the other, at least the next dyno will tell you what you've got in total, no matter what dyno is used.
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

motec6.9

Hi Nathan some numpty broke the dyno brake yesterday morning with a 1500hp alco blown small block Monaro burnout car. So yesterday was done on old rolling road dyno which is designed for emissions testing. I decided to remove restriction of air cleaner as all yesterdays test means is base line figure for throttle body test today so I can say throttle body made x amount of power. Then when original dyno is up and running will retest car. With air cleaner on like original test which will be definitive test as same dyno both with air cleaner fitted . That will show how much extractor/exhaust/throttle body makes in total power increase at wheels and corrected at the flywheel. Car is no where near as loud as last car most noise was from being in building.  :)
Euro 6.9 255.6hp at the wheels. Watch this space.

robertd

#84
Hi Motec,

Have just replaced the system on the new Gold 6.9, here are some pics

the old exhaust that was removed was under sized, it was 1 & 3/4 inch suited to a 450 motor. common mistake!

I stuck to original sized pipe of 2" with 2 X 2.5" hot dogs replacing the centre muffler and a straight through 2.5" sports muffler at the rear. and of course chrome twin pipes to finish.

looks very similar to yours!

cheers

the old exhaust is all stainless so I will keep it just in case it might be needed later on another car.
116   1978 450SEL 6.9 #  4848
116   1979 450SEL  6.9 # 5884
116   1979 450SEL  6.9 # 6225  SOLD
116   1978 450SEL  6.9 # 5128  SOLD
116   1979 450SEL  6.9 # 5884  SOLD
116   1974 450SEL  DJet

motec6.9

Hi Rob apart from mine being 2.5 inch its the same. Exhaust removed was same size as yours 4.5 litre exhaust but car still made 230.1hp at rear wheels with this exhaust . Once I can get back on original dyno we will see what extractors/2.5 inch duel exhaust/ 92mm throttle body makes to engine output at rear wheels and fly wheel corrected power standard on my 6.9 was 288.9hp . :)
Euro 6.9 255.6hp at the wheels. Watch this space.

oversize

Maybe next time I should get out my sound level meter?? ;) ;D

http://www.youtube.com/watch?v=TW1Xsp8xPv0
1979 6.9 #5541 (Red Bull)
1978 6.9 #4248 (Skye)
1979 6.9 #3686 (Moby Dick)
1978 6.9 #1776 (Dora)
1977 450SEL #7010 white -P
1975 450SEL #8414 gold -P

motec6.9

Hi Mark this system is a lot quieter than old cars system . It was very loud not much quieter than open exhaust.  :)
Euro 6.9 255.6hp at the wheels. Watch this space.

robertd

marko,
that Blue Flame of yours sound awesome
cheers
we should arrange a gathering and play the pipes together!
116   1978 450SEL 6.9 #  4848
116   1979 450SEL  6.9 # 5884
116   1979 450SEL  6.9 # 6225  SOLD
116   1978 450SEL  6.9 # 5128  SOLD
116   1979 450SEL  6.9 # 5884  SOLD
116   1974 450SEL  DJet

motec6.9

Very possible . When I move east Heathcote sounds good.  :)
Euro 6.9 255.6hp at the wheels. Watch this space.