FSPP Aluminum Head Update

[Anonymous]

"I was told there would be no math....."

old saturday night live bit

but seriously...if you can make this reasonable cost, there is no reason why it wont sell like hotcakes. The enimic 200 awaits to be woken up.

what do you think gas milage will be with one of these?

will it improve with efficiency?

much, much respect
chaz

 

[Anonymous]

What cam was the flow test done with?

 

[Anonymous]

what do you think gas milage will be with one of these?

I'd like to know this as well.

 

[65coupei6]

Sounds like it is coming along. I know where my XMas money is going

 

[AzCoupe]

I have no idea how it will effect gas mileage. I would assume it will be about the same, but it may improve. I just don't know. I don't know if there is any type of math formula to figure it our either. I'll ask the engineer next time I talk to him, which will be next week. I'm dying to know the results on the exhaust ports.

It takes a lot of time to do the ports, because there are six different port designs. Intake 1&6, 2&5, 3&4 and Exhaust 1&6, 2&5, 3&4. He has to make a model for each one and get all three to match. Not an easy task. A lot of V8 heads only need two designs, one intake, and one exhaust. So this is a lot more involved (and costly).

No cam is used for a flow test. They just simulate the various lifts from 100-600, then test and modify each port design until they all match (WDP & CFM).

The head will use all of the current rocker assemblies. Stock non-adj, stock adj, HR adj, roller tipped and full roller. As well as a new assembly we are working on.

As for cranks, we are talking to one major manufactures to see if we can convince them to produce one. I'll be talking with them in person when we go to the SEMA show in a few weeks.

 

[Anonymous]

any prototype pics?

 

[rbohm]

8) regarding fuel economy, anytime you imnprove the efficiency of an internal combustion engine, and this head will improve efficiency, fuel economy usually goes up. this however is dependant on what cam, carb, and gearing you choose to use. if you build the engine to make maximum horsepower at the higher rpms, meaning largeer cams with large amounts of overlap, low speed fuel efficiency will drop. remember that fuel economy still remains dependant on the combination.

 

[Anonymous]

what do you think gas milage will be with one of these?

A Lot of V 8 guys notice a very small gas mileage decrease when swaping aluminum heads on.

When you lose heat through the head into the coolant, less heat is available to push the piston down

you need a better radiator too.

 

[MustangSix]

True, but you can mostly offset that heat loss and loss of efficiency by increasing CR. Rule of thumb is that an aluminum head can easily tolerate an extra point or point and a half of CR, all else being equal. That's one reason our crossflow has no problem with the 9.8:1 CR on pump fuel.

A really good head design might allow you to bump it to as high as 11.5:1, if you can optimize your timing.

 

[Does10s]

A really good head design might allow you to bump it to as high as 11.5:1, if you can optimize your timing.

Or be able to add a pound or two of boost!
Will

 

[benn3393]

Mike,
Have you thought of pre-selling the heads as a form of fundraising to help expediate the development of the new heads? I know that I would be interested in that.

 

[MrMootsie]

ditto

 

[robbinsj]

Ditto ditto...

 

[Anonymous]

sounds good, congrats. any idea on the price range of these?

I NEED TO GET A DAMN JOB!!

 

[AzCoupe]

any idea on the price range of these?

I don't have a firm price yet. I should have a better idea in a few more weeks. No less than $1000, no more than $1600, for a complete head and choice of intake.

Have you thought of pre-selling the heads as a form of fundraising

I tried that with the valve covers, but had very little success. Only two guys sent in a deposit for them. Most want to know a firm price first.

If you want to help out with funds, buy a cap . I had a lot of guys tell me they would buy an FSPP cap if I made them, so I did, 200 of them. But have only sold 18 to date.

 

[Stubby]

You had alot of improvement on the intake runners. If you can't get the exhaust to the magic 80% are you going to consider downsizing the intakes to balance the flow? It would make it easier on cam selection and the boosted bunch would love it 8)

I know I will not make any friends by suggesting downsizing the intake runners, I just figured it might could be a well balanced head and still be a huge improvement over a stock head. The thing that got me thinking this was, the guy who is designing this head is evidently good and whatever he comes up with we will just have to live with it. The average guy won't be able to make it any better.

 

[wsa111]

Mike, sounds like the intake side is not a problem.

Whatever is done to the exhaust side by just making the ports larger would be a great achievement. I know the design will be the best that can be done with the present exhaust port location.

If you raised the exhaust port exit level by 1/4" I know on the 200 engines this would not cause a problem with top of header to body clearance at the collector. With the 250" using the same header there could be an interference problem. It all depends on the length of the collector at the underbody for proper clearance.

An easy way to increase exhaust flow would be to raise the exhaust exit level, but the original headers would have to be redesigned, too bad, just do the best you can, its got to be better than we have with the log head. William

 

[rbohm]

8) if the exhaust side gets with in 65% of the intake side flow, then a dual pattern cam will work real nice with this head. something similar to a cam for a small block ford with stock heads should be very close.

 

[addo]

A problem with pre-sales deposits could be that it forms a sort of contract. That increases risk of later problems when the two parties may not have identical ideas about the exact terms of this contract.

By allowing Mike to develop it at a pace/cashflow which suits him, you're best assured of a product he will be fully happy selling. Isn't that better than something pushed into the market because "it's been a while"?

When flow rates and CCs are all sorted, Mike could publish enough of this data for everyone interested to build an appropriate shortblock and choose a cam.

 

[Anonymous]

so in the low 1000's huh? that isnt that bad considering the power output that should result if these things work. i better start saving my change in a jar so i can afford it, lol. any chance that we might see some new camshaft designs that will match this new head or will the existing fspp ones work? will big cams idle smoother or rougher?