As a result of a few things Len and I have been playing with the HP and troque levels of pretty much all my engines have been increasing recently.

One of the most recent cases of this was a 914 customer who is local to us that came to me with a 2.0 engine with Mark Stephens heads. Len had to do a lot of work to overcome what MSHP had done to the heads and one of the things he did was the only way the heads could be saved, it was also something he had been wanting to try for quite some time, so the change was employed on this engine.

Well, two Fridays ago the customer came up for the final dyno pulls and witnessed the engine make 202HP ON PUMP GAS WITH 9.5:1 CR! This engine was built from my standard "Annihilator" base engine that typically makes in the low 180s for HP and about 170 on torque fully optimized- this engine made 183HP ON THE FIRST PULL WITH DEFAULT SETTINGS!

After a few tweeks of the Mallory and a re-jet the engine made 202HP at only 6,000 RPM and 183 lb/ft of torque at 4,000 RPM! This engine typically needs to rev to 7, 000 RPM to make 180 HP, not the case here! The crazy part is this engine made 167 lb/ft of torque at only 3,000 RPM- The torque curve is so flat that it almost looks artificial!

Needless to say my customer was astonished as he paid for 180 ponies, but got the added power at no extra charge....

When I called Len and told him what the engine had done, he was not suprised that much, and this same change is standard equipment on the "New generation" cylinder heads that we are presently working with to complete development of. These heads are going to change a ton, because we are attaining more power for the SAME cost as before AND larger engines (2563 and 2615) will now be CHEAPER than before!

Just last week I used the very first set of these production versions of the heads on a 2270 I built for the Hot VWs build up series and that engine also made more Torque and HP than any 2270 ever has before! It did this with only 9.55:1 CR as well, on pump gas with no crazy parts and this engine made peak power @ 5,500 RPM, meaning there is no need to twist the engine to insane levels to get the power, and the whole engine loves that!

The best part is that VERY SOON ALL my engines and engine kits will incorporate these "New Generation" heads as standard equipment, and the prices are not moving a bit!

Go Jake Go!


You know, you keeping making great numbers with crappy technology, and sooner or later Chevy's or Briggs and Stratton are gonna come knocking on your door with a job offer.....

I was offered a job at Briggs 7 years ago.....

As far as Chevy's go- They have radiators- HELL NO!

What if you twist it to insane levels?

Very impressive Jake!

QUOTE (olav @ Feb 15 2006, 07:15 PM)

What if you twist it to insane levels?

Well, Jake, at 100hp per liter.. .now all you gotta do is get it to burn ultra clean.. then HONDA will be knocking at your door!

Well done.

Very cool. You've got a great job!! Keep it up!

QUOTE (olav @ Feb 15 2006, 07:15 PM)

What if you twist it to insane levels?

We do.... As we speak I'm assembling a destroked, huge bored sub 2400cc engine that will rev to 9,000 RPM with Titanium rods, lightened crank and the works for an 1100 pound, Aluminum bodied 550 Spyder replicar for a customer in the UK... The heads have over 90 hours of labor in their composition, with twin ignition and the works...

We call it "The Mighty Spyder" and it'll be unveiled at the Classic Leman in France this July, and I'll be there to drive it!

So far the power plots(3D models) for this baby tip the scales at 270HP!

Wow This is good news. My car will be ready in the fall and I'm planing on a 2270 kit.
I even have all the parts to assemble a 2165 but you can't compete with extensive R&D.
I'll put this engine together for my rail and get buy one of Jakes engine kits for the car

QUOTE (Jake Raby @ Feb 16 2006, 04:39 AM)

...and it'll be unveiled at the Classic Leman in France this July, and I'll be there to drive it!

Jake -I'll keep an eye out for you and the spyder

Jake Im curious can you describe what mshp had done to these hases that had to be "overcome"? I ask cuz ...I got a set !! and I was appaled at what they did

yeah, me too. I have a set of scanky looking mark stephens 2.0 heads. alledgedly rebuilt

Jake,

Will these heads make it to my recently ordered 2615 kit?

Your thread indicates that 2615 engines will benefit from this new technology.

Ricky

Huh,

You see, not beingh able to make big purchases for my car till after the wedding is a good thing. :-)

Will these heads also be going into 2056 kits, or just the 2270 and larger kits?

Zach

you guys got a set of this head combo for a 103 by 80?

waiting for the irs check.....

That's cool .... See I told my wife "head is good"..

Jake...You have me re-thinking my plans for a Suby conversion if I can get near 200 hp reliably from aircooled.
I especially like the flat torque curve and power at lower rpm!
You are doing wonderful things for the aircooled world.

QUOTE (Jake Raby @ Feb 15 2006, 07:39 PM)

QUOTE (olav @ Feb 15 2006, 07:15 PM) What if you twist it to insane levels?  :D We do.... As we speak I'm assembling a destroked, huge bored sub 2400cc engine that will rev to 9,000 RPM with Titanium rods, lightened crank and the works for an 1100 pound, Aluminum bodied 550 Spyder replicar for a customer in the UK... The heads have over 90 hours of labor in their composition, with twin ignition and the works... We call it "The Mighty Spyder" and it'll be unveiled at the Classic Leman in France this July, and I'll be there to drive it! So far the power plots(3D models) for this baby tip the scales at 270HP!

INSANE!

All 2270 and larger kits and ALL RAT ENGINES will be benefitting from these head developments, effective immediately! This includes the 2563 and 2615cc engine kits.

Sure we have a combination for a 103X80 engine, with your cam the 7456 heads would be optimum... The price of these heads will be staying the same, BUT a minimum of 10% more power will be gained (more like 15-18% net)

2056 and smaller engines are not targeted for these heads, these small engines already make incredible power with the current heads and will rev to 7K without any further mods.

Its that much more incentive to go MassIVe!

Ok thanks for the gratuitius plug there Jake but you didnt answer my Q.

Phew! Thank goodness I am spending all my money on a new garage! I'd be in trouble, wanting to buy one of these new engines.

Oh....
Well on top of installing seats with medieval practices (20 pound hammers) and making shoddy repairs to cracks, coupled to the fact that the heads are so imbalanced, they also had uneven chamber volumes by 4ccs!

reasons like this is why we are no longer rebuilding ANY heads, not even 2.0 914 heads... Those repairs took twice as long as it would have to modify a set of new castings.

There is a reason why MSHP went out of business 4 years ago.

BTW- the %K$ engine kits are shipping to Mark tomorrow!

You shipping heads to Mark Stephens?

I thought they are West Coast Core now?


Don

The customer bought these heads from MSHP himself 5 years ago.... The engine ran like crap so he parked it.

Then he called me.

Now he has 202 ponies, 20 more than he paid for!

QUOTE (Jake Raby @ Feb 16 2006, 08:45 AM)

Oh.... Well on top of installing seats with medieval practices (20 pound hammers) and making shoddy repairs to cracks, coupled to the fact that the heads are so imbalanced, they also had uneven chamber volumes by 4ccs! reasons like this is why we are no longer rebuilding ANY heads, not even 2.0 914 heads... Those repairs took twice as long as it would have to modify a set of new castings. There is a reason why MSHP went out of business 4 years ago. BTW- the %K$ engine kits are shipping to Mark tomorrow!

SWEET! (the Kit's that is) Success comes with a price ...eager customers.

Does Len no longer rebuild 2.0 914 heads?

My set of "special" MSHP heads has the webbing between the banks welded !? Why ...I dont know, thought you might have seen it before or be able to shed some light.

QUOTE

Does Len no longer rebuild 2.0 914 heads?

The last set of rebuilds are being processed as we speak........

Casting repairs suck, starting from scratch and spending the extra cash on BRAND NEW castings is so much smarter, many times the casting repairs on stock rebuilt heads can equal what we charge for the brand new heads....

After 30 years, too many idiot rebuilders and being overheated- its time to retire the castings.

Jake my guy bailed on the new heads for now

So wait. What did you have to do to the old heads to rebuild them and get an extra 20 ponies? Or did you not rebuild them, just replace them with new castings. Or did you do something that you will now be applying to the new castings on the new massive engines?

Just a little confused.

New castings with CNC ports plus a few tricks.

What's a ballpark on the R&D cost and time to make this power jump?

Just curious. . .

-'Chung

Chung,
So far it's only cost us about 15K to do this, but we are not finished yet :-)

Mark, where did you getb the CNC info from, obviously it was an unreliable source- no one knows what we have in store with these heads but Len, Brent and the Hot VWs Tech writer...

Its not a big deal that he bailed on the heads, thats fine- we are making as many sets up as we can for the HUGE influx that the article will send this way, no doubt... They should be on the shelf in May.

BTW- This 2316 engine got it's original MSHP heads rebuilt by Len WITH some of the newest mods done to them, none of that was done with a CNC!

yet again, THESE HEAD DEVELOPMENTS WILL NOT INCREASE THE PRICE OF MY KITS OR ENGINES!

I'm absorbing the R&D costs and the extra money the heads cost to give the customer more bang for the buck!

With these new heads and dyno results what HP do you think a 103 X 78mm is going to make now.
My guy is back on the fence again.

(44 webers, DTM, Nickies and a rat 9510 cam)

wow.

thats all i have to say.

b

Dollar to HP ratio... about $75/hp. Thats not too shabby.

QUOTE (Mark Henry @ Feb 17 2006, 11:11 AM)

With these new heads and dyno results what HP do you think a 103 X 78mm is going to make now. My guy is back on the fence again. (44 webers, DTM, Nickies and a rat 9510 cam)

210, and over 200 Torque..

Thats pulling the fan, through the muff...

QUOTE (Jake Raby @ Feb 17 2006, 05:52 PM)

210, and over 200 Torque..

QUOTE (Jake Raby @ Feb 17 2006, 01:52 PM)

Thats pulling the fan, through the muff...

She didn't get pissed off, or even werse injured by that??

Oh and uh awesome werk Jake!!!! I'm gonna go look at my 36 h.p. Judson engine and cry now

This is just the tip of the iceberg.... Things have really been growing power wise, and effieicny wise with these head developments as of lately. The volumetric efficiency of the 2316cc engine went from 86% to a whopping 95% with the addition of these heads alone!

The 2270 also saw a boost, but it's boost was only 5% ebcause it was already super refined. This is why we say that the bigger engines will REALLY see big gains from these heads.

So more power, better MPG and cooler temps- same money spent.

Jake, any worries of the supply of your new castings drying up?

if they are from who I "think" they are from, are they still being made on a regular basis?

by the way, great news.....I'm still in the Type IV band camp

QUOTE (Jake Raby @ Feb 15 2006, 07:02 PM)

One of the most recent cases of this was a 914 customer who is local to us that came to me with a 2.0 engine with Mark Stephens heads. Len had to do a lot of work to overcome what MSHP had done to the heads and one of the things he did was the only way the heads could be saved, it was also something he had been wanting to try for quite some time, so the change was employed on this engine.

Hey Jake,
I know he was a competitor (at least they 'offered' the same product)

but was there a time when Mark Stephens HP was any good?

Years ago when I had some money to spend on my 914, I almost
did business with them.

Just curious, did anyone ever get good, quality products from them?

If the current supply dries up, we'll cast them ourselves.... Its just a thing!

There is also an alternative being worked out now that won't require a casting at all, some networking with some guys from other indutries has really paid off!

Everyone will see in just a month or two- we are wide ass open with it!

QUOTE

Hey Jake, I know he was a competitor (at least they 'offered' the same product) but was there a time when Mark Stephens HP was any good?

NO- He never was a competitor and never offered the same product! MSHP catered to price shoppers that wanted to cut corners and half ass projects, many times sacrificing EVERYTHING for a HUGE engine that made no power, but was cheap as hell... MSHP never did any testing of anything, thats why they went out of business when parts came back on pallets!

Two totally different worlds.... I'd rather be crucified as handle my business that way!

QUOTE (Brian Mifsud @ Feb 15 2006, 07:28 PM)

QUOTE (olav @ Feb 15 2006, 07:15 PM) What if you twist it to insane levels?  :D Well, Jake, at 100hp per liter.. .now all you gotta do is get it to burn ultra clean.. then HONDA will be knocking at your door! Well done.

It's a good thing Jake isn't located in California or working with post 1975 motors. I recall a guy here in California that has been around a long time making the comment on a Datsun website that he not only could make lots of HP with the Datsun inline single overhead cam 6 that is found in the Z car but that he could make it cleaner running than the new cars coming out now. California Air Resource Board actually raided his shop and boxed and took his records!

Jake, the 2270 kit if I understand now comes with this new head design? If I were to use megasquirt and stock injectors will the stock intake runners supply enough air? Are throttle bodies needed or beneficial? Thanks for taking the time to answer our questions. I don't know how you manage to accomplish what you do with all of our questions...

Rob

Len and I have been working on cleaner burning, more effecient engines for the past 16 months.... This is in anticipation of some Nazi bastards migrating from California to other parts of the country and imposing their bullshit regulations. We WILL be ahead of the game when it happens!

These new heads, if equipped on an engine with a stock plenum and runners would not make any more power than the kit that Dave Hunt built his engine from. The ENTIRE intake tract is only as big as it's smallest orfice,, and the plenum is maxxed out as well as the runners at around 145 HP, these new heads won't do you a damn bit of good!

BUT swapping up to individual runner EFI would be sufficient.

QUOTE (Jake Raby @ Feb 18 2006, 03:35 PM)

NO- He never was a competitor and never offered the same product! MSHP catered to price shoppers that wanted to cut corners and half ass projects, many times sacrificing EVERYTHING for a HUGE engine that made no power, but was cheap as hell... MSHP never did any testing of anything, thats why they went out of business when parts came back on pallets!

Jake...why all the hate?

Folks love your stuff and I love that you are out here doing a good job but you always sound so f'ing angry.

I did business with MSHP many, many moons ago. I wan't a price shopper or doing a half ass project. Granted all I got was parts from the guy, and I did my own assembly, but I dynoed well and my engine hasn't given me any problems.

QUOTE (Jake Raby @ Feb 19 2006, 01:47 PM)

This is in anticipation of some Nazi bastards migrating from California to other parts of the country and imposing their bullshit regulations.

That's one hell of a selling point!!! I like this guy more after every word out of his mouth. Buy one of his engines! Now!

No hate- just point blank, in your face, honesty...

These days with all the political correctness I find it refreshing when someone goes out of their way to be blunt- its appreciated!

I do the same, I haven't the gift, nor the time to bullshit someone or walk around on my tip toes trying not to hurt their feelings..

After all, I'm a former Marine, what else needs to be said!

Marine...that explains the intensity.

Personally I applaud your directness. I hate agendas and political correctness. But having never talked to you I don't know how you talk. But you write like you are yelling.

Be happy.
Smoke up.

I do yell- alot. Thats just because I am intense and because I fully intend to get the point across with no confusion.

In person or on the phone I am much less intense, but here on the net where there are way more wrong ways to interpret things than right ways I have found it a necessity to remove all doubt and be firm with posts...

Spend some more time around and you'll see that...people are used to it after about 60,000 posts to forums and newsgroups on my behalf over the last 8 years!

Good to know.

Glad to meet ya.