Slant Six Forum :: SLANT 6 from OZ engine dynoed

HI
The boost ended up at 20 -22 , it seems to climb with revs. The more boost i gave it the earlier the power layed down so im not sure what is causing that,Turbo size ,exhaust size , intake size ,Who knows
I gave it a short run at 25 - 26 psi the torque was up in the hi 780 s but that was pushing my luck .
Engine was dynoed on 100 octane unleaded pump gas
Engine Specs
stock crank shot peened,std & std
stock 225 rods race preped with arp bolts
venolia pistons 100 over
about 9 to 1 compression
head is the 1 from the flow sheets 1.55 ex valve & 1.80 int
romac balancer
adjustable cam sprocket
230 @ 50 reground cam
I really dont know how long the engine will cope with this power, maybe the revs will save it. Although all the parts were crack tested and were all ok so all the same parts went back in including bearings & rings.
I had to remove the roller rockers because of pushrod problem so that gave away a bit of top end power. put on stock rockers and had no problem.so i will have to get some pushrods made

Author:	DionR [ Thu Jun 08, 2006 9:33 am ]
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Quote: What is really cool is that he did all of that below 5375 rpms. How do you know that? Is there info posted somewhere that I have missed, 'cuz I sure would like to see it. Are we ever going to get specs?

Author:	bwhitejr [ Thu Jun 08, 2006 9:51 am ]
Post subject:	Slant Six from OZ
Look Here. http://www.moparmarketforum.com/phpBB/d ... hp?id=1140 http://www.moparmarketforum.com/phpBB/d ... hp?id=1140 bwhitejr

Author:	Tom Drake [ Thu Jun 08, 2006 11:17 am ]
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Cameron sent me the dyno sheets. http://www.drakecoatings.com/images/Sla ... noRun1.jpg Tom

Author:	DionR [ Thu Jun 08, 2006 12:36 pm ]
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What does Disp:366 and Bore:4.03 mean? Did he find some way to fit 4" pistons in a 4" bore centerline block? I'm sure it doesn't mean anything related to the motor, or it is some previous input. Just kind of curious. Thanks for posting more info!

Author:	panic [ Thu Jun 08, 2006 2:31 pm ]
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I'm confused. We know this is a slant because why? It says 225 slant on the print-out? It also says "265" twice and "Bore: 4.03", which is a nice size on the hemi 6 (up from 3.91"). I suspect it's a 265.

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SLANT 6 from OZ engine dynoed https://slantsix.org/forum/viewtopic.php?t=17871	Page 2 of 3

Author:	DionR [ Thu Jun 08, 2006 3:00 pm ]
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Quote: I'm confused. We know this is a slant because why? It says 225 slant on the print-out? It also says "265" twice and "Bore: 4.03", which is a nice size on the hemi 6 (up from 3.91"). I suspect it's a 265. His first post did say slant 6. I know that at least one member here has ridden in the car, and I'm sure he wouldn't confuse a slant 6 for a 265. Else were (moparmarketforum) he posted it in the /6 section. I gotta' believe that those are either coincidences, or left over tags from a previous run.

Author:	Tom Drake [ Thu Jun 08, 2006 3:25 pm ]
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It is the slant six that Cameron runs in his street car. Lou has ridden in this car! Cameron also uses this dyno in his business( I believe Lou correct me if I am wrong) and that is probably just left over input from other runs. Here is the email Cameron sent with the details of the dyno pulls. Quote: HI The boost ended up at 20 -22 , it seems to climb with revs. The more boost i gave it the earlier the power layed down so im not sure what is causing that,Turbo size ,exhaust size , intake size ,Who knows I gave it a short run at 25 - 26 psi the torque was up in the hi 780 s but that was pushing my luck . Engine was dynoed on 100 octane unleaded pump gas Engine Specs stock crank shot peened,std & std stock 225 rods race preped with arp bolts venolia pistons 100 over about 9 to 1 compression head is the 1 from the flow sheets 1.55 ex valve & 1.80 int romac balancer adjustable cam sprocket 230 @ 50 reground cam I really dont know how long the engine will cope with this power, maybe the revs will save it. Although all the parts were crack tested and were all ok so all the same parts went back in including bearings & rings. I had to remove the roller rockers because of pushrod problem so that gave away a bit of top end power. put on stock rockers and had no problem.so i will have to get some pushrods made Tom Drake

Author:	flight704 [ Thu Jun 08, 2006 7:17 pm ]
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SWEET!!!!!!!!!!! congrats to turbine

Author:	Dart270 [ Fri Jun 09, 2006 6:21 am ]
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The engine dyno was recently installed at Cameron's shop. The engine is indeed a 225 with stock (prepped) bottom end except for the forged pistons. Any doubters will need to buy a plane ticket to Sydney, Australia. I did and it was worth it... Lou

Author:	Tom Drake [ Fri Jun 09, 2006 6:40 am ]
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Quote: Any doubters will need to buy a plane ticket to Sydney, Australia. I did and it was worth it... I do not doubt it but I would love to visit Aus. and Cameron sometime! Just from the little boost we have run it is definetly within reach. I plugged those dyno numbers into Qtr Pro and a 2000# version of the Simca......WWWWOOOOWWWW! Tom

Author:	slantzilla [ Fri Jun 09, 2006 7:10 am ]
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Quote: I plugged those dyno numbers into Qtr Pro and a 2000# version of the Simca......WWWWOOOOWWWW! Tom Mid 8's @150?

Author:	panic [ Fri Jun 09, 2006 7:53 am ]
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I would guess that adds considerably to the argument that boost is much kinder to the engine than power developed NA (pressure spikes later in the cycle), not to mention that the reduced RPM can't hurt. I'm a bit surprised at the specs, though. 9-1 is higher than I thought would like that psi, but a small bore is forgiving. That's not much cam, either. That engine is calling out for more area like a BIGGG rocker ratio to keep the events modest. Any thoughts about the valve combo? How close are the heads with 1.80 & 1.55"? Vizard said that some high boost motors need an exhaust valve same as the intake (like the 354/392).

Author:	Turbine 225 [ Thu Jul 06, 2006 6:20 am ]
Post subject:	Slant 6 From Oz 1/4 Mlie Run
SLANT 6 FROM OZ 1/4 MILE TIME SLIP STREET CAR @ 3200 POUNDS R/T .208 60 1.649 330 4.483 660 6.854 660 MPH 103.61 1000 8.918 ET 10.679 MPH 127.28

Author:	Sam Powell [ Thu Jul 06, 2006 6:58 am ]
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I presume here that turbine 225 is Cameron Tilley. I hope I got that spelling right. It is nice to have you on board "mate". I have heard great things about you as a person from Lou, and feel grateful for your participation here. I am sure we will learn much from you. I hope you enjoy the friendships that develope on this site. Sam

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Author:	flight704 [ Sat Jul 08, 2006 5:32 am ]
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turbine225 congrats again and those are very strong numbers indeed. I read earlier in this thread this is a street driven car? any possibility you can post some pics of the car and the engine bay here , or post a link to a thread on the aussie site if you guys have going over there. i think its moparmarket. thanks for your time and congrats again.