Masters of Motors (MOM) the new EngineMasters Challenge (EMC)

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you can't use step headers
but if pipemax showed that a step- smaller than 2" --for a ways-- would help
you could sleeve the ID
stuck at home -see what you get
cheers
 
you can't use step headers
but if pipemax showed that a step- smaller than 2" --for a ways-- would help
you could sleeve the ID
stuck at home -see what you get
cheers

I like the way you think but no way no how is a small cube engine like this going to like a header any larger than 1 5/8". I do have some room to play with primary lengths and collector design. Oh yeah and **** this virus! J.Rob
 
The crown can be done after all is said and done but shipping back and forth if it becomes time sensitive will not work. I will probably have to order a second set @ 4.100" with all of the features I need. Yes horizontal gas porting will be utilized as well as a 1mm/1mm/2mm ring pack. For the same reasons I just stated above the chambers and valves will not be coated. I'm trying to keep everything as in house as possible. I am intrigued by coatings as well. J.Rob

There are coatings that you can do in your shop, from cerakote I think. My buddy runs turbo ls engines and he does his own piston tops and chambers. From what I've seen it holds up very well. If you want I'll find out for sure what he uses.
 
There are coatings that you can do in your shop, from cerakote I think. My buddy runs turbo ls engines and he does his own piston tops and chambers. From what I've seen it holds up very well. If you want I'll find out for sure what he uses.

Sure thing! Can't hurt. I've seen those DIY kits way back years ago but thought they all went away. Thanks, J.Rob

Forgot--**** this virus!
 
If you don’t find anything soon I could likely get you heads here in Winnipeg...but you should be able to find them close to home...did you put an add on kijiji?
I live in Fargo and would be willing to bounce up to Winnipeg fetch the heads and get them across the border, then ship from here to RAMM? If that helps the cause?
 
I live in Fargo and would be willing to bounce up to Winnipeg fetch the heads and get them across the border, then ship from here to RAMM? If that helps the cause?
That might work provided you can get over the boarder... lets see if he can get some local first as I’m sure shipping will be expensive.
We could also help him out with a little e-transfer to cover heads he finds local...
 
For some past EMC entries Jesse has reworked heads far beyond what I’ve ever done(the PC “Victors”), so he knows what it can take to get a combo for these events sorted out.

That being said, I think trying to have 3 sets of high effort heads for this build could be spending time on something that could be used better somewhere else.
“How I would approach it” is......
I feel “if” the 308 intake port could be made to flow as well as the X head....... then those are what I’d use.
If a suitable guinea pig 308 head could be had....... I’d start with seeing if the casting can provide the needed intake flow without any holes appearing in it.
The ex ports are better than any other stock heads, so that side of the head should be an issue.

My suspicion is that Jesse has probably already done some pretty high level X heads...... at least good enough to where he could assess if the 308’s have the same potential or not.

I’m not really sure what the thought process is on also wanting to do some J heads, along with the X’s and 308’s.
 
my bad
I thought you had said you were going to get some Schoenfield sprint car headers
agree on the header size and that 3in collector may be too big
darn
now I better re read the thread
let me know if I need to go head hunting Sat
cheers
 
For some past EMC entries Jesse has reworked heads far beyond what I’ve ever done(the PC “Victors”), so he knows what it can take to get a combo for these events sorted out.

That being said, I think trying to have 3 sets of high effort heads for this build could be spending time on something that could be used better somewhere else.
“How I would approach it” is......
I feel “if” the 308 intake port could be made to flow as well as the X head....... then those are what I’d use.
If a suitable guinea pig 308 head could be had....... I’d start with seeing if the casting can provide the needed intake flow without any holes appearing in it.
The ex ports are better than any other stock heads, so that side of the head should be an issue.

My suspicion is that Jesse has probably already done some pretty high level X heads...... at least good enough to where he could assess if the 308’s have the same potential or not.

I’m not really sure what the thought process is on also wanting to do some J heads, along with the X’s and 308’s.


I like your thoughts, I agree about Jesse's plentiful experience in high effort, though he differs in approach. None the less.

A few thoughts in return.
I just sent back those 308 heads that were sunk , maybe he would offer one for chopping. I really wanted to, but they weren't mine to chop.
Imo the 308 exhaust port is too small for 4"crank and rpms and getreally thin when made bigger. They do about the same as most mid high 260's till you tube and have nothing but a guide insert sticking out of the roof ..while it seems to me the j head has more meat for the bowl required to get 290's and larger volume exhaust ports with a tad more meat.
X heads can get pretty big too.
I personally think the 308 is better ootb, but a 576 says otherwise. So its definitely a middle child..lol
I have faith in the J heads, but they will take work. I'm confident in the X heads ease for upper lift air but they will need more cam imo, the 308 looks good n numbers but has less port volume on both ends ... but that isnt necessarily a fair shake in a side by side MAX EFFORT deal just as a start and gauge of work needed.. this is pretty interesting and I'm tuned in for sure.
 
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That might work provided you can get over the boarder... lets see if he can get some local first as I’m sure shipping will be expensive.
We could also help him out with a little e-transfer to cover heads he finds local...


give day and ross a call i can ship 3 sets of heads to jesse for around 100 bucks . or a complete engine for 140.00 bucks . they are the cheapest i have found for 40 lbs and up .
 
give day and ross a call i can ship 3 sets of heads to jesse for around 100 bucks . or a complete engine for 140.00 bucks . they are the cheapest i have found for 40 lbs and up .
I will wait to see if he gets his hands on some out there first...if not I will hit up some guys here up for a set...to be honest I given away any factory iron heads I have over the years as I don’t want to bother storing them...the only iron heads I currently have are magnums and that’s only because I haven’t suckerd someone into taking them
 
I have no porting experience with 308’s.
The motors I used them on we’re 2bbl oval track builds where no porting was allowed, and they had to use the 1.88 valve.

That’s why I figured a junk head for some R&D might be worthwhile.

There might just not be enough meat on the floor/short turn to allow them to achieve the big number without putting a hole in it.
And...... you’re only allowed one hole, period.

Sans any R&D....... I’d use the X heads.
 
have not tested but my thought would be that the smaller exhaust port will not be any additional hur with the stock exhausts and could ckkep the velocity up to when the exhaust is closing
do know a boss 302-429 style port job does not work
 
do know a boss 302-429 style port job does not work


They do,.... when you hack off the exh port and bolt on an alu exhs port.:)
 
I have only seen this done once and it was at a machine shop where my buddy was picking up his shaved 360 head.
Had no clue about ports or head flow at that time. The machines said it was a full race thing.......and i guess it was/is:)
 
The rules.......I finally read them and I like them........they sound kinda familiar.

Bring your own tools
. Sounds like common sense right? Uh-huh, but.........been to dyno contests where some competitors didn't bring any tools at all, NONE. Said they thought they were provided at the contest. What?!.....If something happens you figure you are going to fish through a strange tool box or two to find the wrench you need in a hurry?

Once we provided parts, jets, tools or tuning assistance to every competitor there. Yes it was the right thing to do, but why was it even necessary? You need to go prepared!

Or there are the ones who bring some special extras. At a big block MOPAR contest one person came with tools, jumbled together, in a single cardboard box....including some stock factory Chevy small block connecting rods!

Water pumps.........belt driven off the crankshaft. Everyone was using a loose belt to get slippage during the pull thinking they were saving horsepower. We tested the theory before going and found a tight belt made more power every time than a belt flopping around like a fish out of water.

Now if you could get your belt to fly off during the run...well....that was worth some power. That run should have been disqualified. Oh how I wanted to fuss about that. It would have kept us at the most horsepower in the contest even though we were some 50 cubic inches smaller.

How many vanes does the water pump impeller need to provide cooling during the run? Didn't test that one, just cut half of them off to keep the pump in balance. Might have been able to go down to just two. Who knows?
 
I am always learning from this site. There is a wealth of information here. Thanks!
 
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