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JTMIDGET's MEGA ENGINE!!
dangerous - December 29th, 2006 at 10:12 AM

Greg can fill in the details.
Looks like and awesome project!

http://i113.photobucket.com/albums/n216/dangerous_05/JTMIDGETCASE.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/JTMIDGETCASE2.jpg


xornge666x - December 29th, 2006 at 06:57 PM

do tell...
looks impressive!


66deluxe - December 29th, 2006 at 07:59 PM

Is that a B.R.E. case?


dangerous - January 1st, 2007 at 06:27 PM

This engine is a prototype flat four being built by JT,
and Greg Anderson from Pro Machining Ltd in New Zealand.

http://www.pro-machining.com/ 

It will be 2700cc using a 84mm stroke crank that has 5 main bearings,
and uses a roller camshaft with 60mm main journals.

Heads will be also a custom item from Joe Deppe in Indy,
and the guys will be able to use digitized progamming to CNC the inlet and exhaust ports
to attain flow levels of US pro stock cylinderheads.
Awesome stuff, and so close to home....can't wait to see those heads!!

http://i113.photobucket.com/albums/n216/dangerous_05/Greg1.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/Greg2.jpg


dangerous - January 1st, 2007 at 06:34 PM

http://i113.photobucket.com/albums/n216/dangerous_05/Greg4.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/Greg5.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/Greg6.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/Greg7.jpg

http://i113.photobucket.com/albums/n216/dangerous_05/Greg8.jpg


koolkarmakombi - January 2nd, 2007 at 08:35 AM

If he doesnt want to use the case it would be awesome with a piece of glass as a coffee table! Work of art.


dragvw2180 - January 2nd, 2007 at 09:31 AM

Seeing someone do something like this amazes me,how many hours did he spend prototyping this Dave? Mike


dangerous - January 4th, 2007 at 08:07 AM

This link has been posted on the cal-look forum in the USA.

http://www.cal-look.com/forum/index.php?topic=16637.0 


Here is a link to some more info on the engine,
although the heads are now a different plan I think.

http://www.pro-machining.com/news.htm 


pete wood - January 6th, 2007 at 11:22 AM

impressive machining.

one question though, why start with a whole new block and crank when the new subaru EJ25 produces 300hp from the factory (I know it's turbo but even still)? Wouldn't 16 valve heads and a stroker crank in that motor produce the same horsepower at a much lower price?

Is there a 2v per cyl limit on the class or something?

Also, the Subaru already has 5 bearings in the block.

Just a thought...:)


56astro - January 6th, 2007 at 06:24 PM

Not everything is about Subies, Pete.

Quote:
Originally posted by pete wood
something aircooled to drive everyday.


[ Edited on 6-1-2007 by 56astro ]


dangerous - January 7th, 2007 at 10:58 AM

Why do men climb mountains?

Because they can...(and also to impress chicks).


dangerous - January 7th, 2007 at 11:02 AM

Quote:
Originally posted by dangerous
Why do men climb mountains?

Because they can...(and also to impress chicks).



I have never seen a fast N/A Sube( although they should be on paper).

This class is generally a normally aspirated class, and has restrictions in capacity for boost, or 4 valves per cylinder.


promach - January 7th, 2007 at 12:31 PM

Quote:
Originally posted by pete wood
impressive machining.

one question though, why start with a whole new block and crank when the new subaru EJ25 produces 300hp from the factory (I know it's turbo but even still)? Wouldn't 16 valve heads and a stroker crank in that motor produce the same horsepower at a much lower price?

Is there a 2v per cyl limit on the class or something?

Also, the Subaru already has 5 bearings in the block.

Just a thought...:)


Exactly...
Because we can...
and we have...

[ Edited on 7-1-2007 by promach ]


promach - January 7th, 2007 at 12:34 PM

Essentially, we started this project because JT was telling me about the problems he was having with his current engine. The whole engine block configureation was at its limit. So we decided to go ahead and try something ourselves.

WE are working on the heads at present and will have some photos available shortly.


Dasdubber - January 7th, 2007 at 07:48 PM

Good to see you are able to log in and post mate - keep up the progress pics.


promach - January 10th, 2007 at 01:22 PM

Still having the odd problem getting logged on. Seems to have a lot to do with the time of day. Anyway....

Here are some progress photos of the Crank. Only needs oil holes, lightening holes through bigends and heat treating/grinding now.

We have managed to get the weight down to 25.5lbs / 11.59 kg.

The head casting shown, is our second option and has been supplied by Joe Deppe of Indy.
The head casting of our first option will be ready next week. Will have pics then.

[ Edited on 10-1-2007 by promach ]

[ Edited on 10-1-2007 by promach ]


pete wood - January 10th, 2007 at 02:42 PM

Quote:
Originally posted by dangerous
Quote:
Originally posted by dangerous
Why do men climb mountains?

Because they can...(and also to impress chicks).



I have never seen a fast N/A Sube( although they should be on paper).

This class is generally a normally aspirated class, and has restrictions in capacity for boost, or 4 valves per cylinder.


yeah, that's what I thought.

Promach, no offence intended, just curious. Love your work. Looking forward to seeing how it all goes for you. :thumb


promach - January 13th, 2007 at 11:51 AM

For today's update, here's a shot of the barrels.

The plan is to have these done by the end of the weekend and start getting the heads bolted up next week.

There's going to be 6 studs on each cylinder. We want to make sure we keep it nicely sealed. ;D

[ Edited on 13-1-2007 by promach ]

[ Edited on 13-1-2007 by promach ]


promach - January 19th, 2007 at 11:24 AM

We've got the head back from casting. Nothing to show there just yet. Hope to have some machining done on this over the weekend.

This is one of those projects that is done in our "spare" time. We would really like to get this project done a whole lot sooner, so anyone out there has any thought on where we can get funding so that we can work on this full time. Any ideas would be gratefully recieved. We don't want this turning into a lifetime project and never getting finished or realising its full potential.


dangerous - January 19th, 2007 at 04:41 PM

Quote:
Originally posted by promach
We've got the head back from casting. Nothing to show there just yet.


You can't say that!!!

Show us the casting Greg!!?


Stanley - January 20th, 2007 at 08:47 PM

Hats off to you Promach...this is great seeing a project as it starts. Can't imagine to many doing what your doing.

If there weren't people out there willing to try something a little bit different or to try and do something better we'd all be driving model T's...(or 40hp Volksies)


promach - January 24th, 2007 at 02:43 PM

Quote:
Show us the casting Greg!!?


oK, oK here's a couple of photos. Like I said nothing much to show just yet. More to come...

[ Edited on 24-1-2007 by promach ] Photo's didn't show the first time. :cry



[ Edited on 26-1-2007 by promach ]


pete wood - January 24th, 2007 at 02:51 PM

dare I ask, but what sort of $$$ buys this engine?

also, it there any cooling to speak of, or is it strictly a drag thing.


promach - January 24th, 2007 at 04:49 PM

We don't have dollars worked out yet, but will let you know when we do.

There will be fins around the bores to help with cooling, have to look at the cooling around the intake/exhaust later. Running the motor on alcohol helps with removing a lot of heat.

The first motor will be going into JT's midget. This is purely a straight out race motor, not necessarily just for drag.

With the current bolt pattern in the head, 4.6 pistons are no problem, if I push them out we can have 5".


Dasdubber - January 24th, 2007 at 05:32 PM

Guys I'm trying to get JT's login sorted - he is having trouble signing on which I Think has something to do with conflict of email address (see sticky thread in general chat section from vanderaj).

I've contacted Andrew so hopefully we can resolve it soon so JT can post his input here.


Doug Sweetman - January 25th, 2007 at 11:06 AM

4.5" = 114.3mm, 5" = 127mm

Holy Crap Batman, thats going to be a large capacity engine......

I like it, I like it alot.....


Midget-JT - January 25th, 2007 at 03:21 PM

hi alan thanks for all your help its all good now .jt :tu:


Dasdubber - January 25th, 2007 at 03:40 PM

Quote:
Originally posted by Midget-JT
hi alan thanks for all your help its all good now .jt :tu:


Good stuff. :thumb


promach - January 28th, 2007 at 10:38 AM

Here's a little bit more just to keep things moving...

sorry but the pics are not showing up
but check on cal-look for a look at some off the cad files

[ Edited on 28-1-2007 by promach ]


Midget-JT - January 31st, 2007 at 04:30 PM

hey guys we need some 7075 T6 alloy plate sizes are 5x 6x5x1 .can anybody help .thanks jt