Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

[JeffMcKC]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry


What CFM on the carb/throttle body are you restricted to??

Also the guy that ported my heads said in a N/A application you want to leave the "rough finish" on the walls of the intake runner. As he put it, each one of those bumps will cause a little tornado to happen in the intake stream, thus keeping the air/fuel mixture atomized and reducing the amount of puddling that would happen if the walls of the intake runner were smooth. He said this was very important on a naturally aspirated motor. I don't know what your intake looks like, but if the runner is smooth below the injector, that could be why the fuel is puddling on the walls in the low RPM's.

Try sandblasting the inside of the intake runners, so it kind of has a "pitted" surface, that should stir things up. ;)


It common to use a 60 grit and be done with it, fuel shear is a big problem too from the sharp edges guys try to make, sometimes you put a "turtle" in the bottom also or drill holes ( just not all the way thru)

[JeffMcKC]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

I would like to see the intake but understand whats at hand this is why I did not go into asking before if what I thought it was, is, to give and secret squirrel stuff away, been there had had that done to me. Good Luck plenty of smart guys working on it. I have a couple trusted guys if it should come up.

[horsewidower]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

This intake is soooo far out of the box. Danny, Harry and Gene are brilliant. The bummer here is that the power numbers for injector placement are probably not comparable cause the pistons were going away when we made the change. Clearly there were some trends that we can extrapolate, but it would have been nice to have a true A:B comparison.

I wish I knew all the guys that have contributed on the mechanical side, they really need a huge shout out for the great work that has been done and the trooper duty in responding to the need to change to the 304. Great team.

[milkovich]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Dumb question (I realize that you guys are a lot smarter then me) but I'm assuming you looked at spray patterns on the "high placement" version?

Can't wait for the next EMC issue!

[horsewidower]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

You can only place the injectors where a cast-in boss is located. Unfortunately that meant the upper placement was compromised from a spray pattern stand point. The lower placement has a far superior opportunity. We are not certain that our mounting method is getting the most out of the pattern, but it is what it is.

Sorry, still a bit cryptic, but we'll get there soon.

[horsewidower]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Danny just let us know that the engine has been crated and is on its way.

If anyone knows where we can get some LS truck spark plug wire ends, we'd sure appreciate finding out. Or, if anyone has some extra stock wires.

[A/Fuel]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Intresting topic.
I seem to remember a engine masters article, maybe from last year that had Gene Adams in it with an early hemi. It's probably around here somewhere.
I did some work once with rough ports, ours more resembled golf ball dimples, the theory was more of promoting a layer of air close to the wall, rather than "little tornado's" it seems close enough to what you guys are talking about. It did make a difference (maybe not what we were looking for) but we even noticed where we placed the dimples had an effect rather than earlier random attempts. We did theorize though, that where the fuel tended to puddle it might have collected even more fuel that was passing by, so we thought if we were to continue the project should we attempt to speed it up before those area's? Anyway, we decided that the dimples were having the opposite effect that we were looking for on a nitro engine, and stopped working with them. Once again, so many things are backwards with nitro and gas... we idle off the upper manifold nozzles, the higher the placement the easier it is to have control, until you have a leaking down nozzle..LOL
I might have to look for that article and get a little more up to speed on this.

[Barry_R]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

I'll be there with my junk. A 433 inch FE Ford. Made up from prior years parts, epoxy, and silicone. Lots of silicone.

I had intentions of trying carb & EFI, but the lack of intake availability scotched that plan - the only legal piece is an Edelbrock, and they were on backorder for like months, until about a week ago. I am running a radically modified dual plane and a custom carb from Quick Fuel that initially did crazy stuff to the fuel curve - but seems to really make power once I got it under control.

Not doing as well as you guys are/were - only 2418 points - but good for me. Won't be the best carb combo for sure, and yes - the EFI does have a big advanage this year per the rules. Making 488 TQ at the 2500 hit, and peaking at 615TQ/674HP on Jim Styke's dyno here in Detroit. Tried a Dominator on it and only gained 5HP at peak.

I'll be arriving Sunday, running on Monday - looking forward to meeting up with everybody!

[dieselgeek]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Can't wait to meet you Barry! I am looking forward to the week, regardless of the result; I expect the event to be similar to Drag Week except for no long drives each night.

[horsewidower]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Same here, can't wait to meet you. We're getting in Tuesday at about 3:30 pm in Dayton.

I'm glad we're still going, I think the atmosphere will be great.

[min301]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Danny just let us know that the engine has been crated and is on its way.

If anyone knows where we can get some LS truck spark plug wire ends, we'd sure appreciate finding out. Or, if anyone has some extra stock wires.

I have some, there kinda high milage, but I have em.

[JeffMcKC]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

[quote=Barry_R ]
I'll be there with my junk. A 433 inch FE Ford. Made up from prior years parts, epoxy, and silicone. Lots of silicone.

I had intentions of trying carb & EFI, but the lack of intake availability scotched that plan - the only legal piece is an Edelbrock, and they were on backorder for like months, until about a week ago. I am running a radically modified dual plane and a custom carb from Quick Fuel that initially did crazy stuff to the fuel curve - but seems to really make power once I got it under control.

/quote]

My Idea of a FE single plane intake ( from Paul Swartz intakes)

[dieselgeek]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Teaser vid! I should be able to put up some wicked Youtubes when this is all finished:

http://www.youtube.com/watch?v=55YNhXUfCxo

[min301]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Thanks Scott...

[horsewidower]

Re: Engine Masters Challenge 2010 Coming Next Week: BangShifters Thrashing on an Entry

Off on the plane tomorrow morning. Should be an exciting week. We'll meet up with Danny and Scott tomorrow. Maybe we'll get some time in finishing the build and wiring the engine.

Bob