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Old 01-04-2003, 01:56 AM   #1
Axis Power Racing
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Default The next level in stroker motors

Well, after over a year in the making, the next level in Subaru stroker motors is now available. Tested to over 800hp these motors will give you the reliability you have been looking for.

We start off with a phase II 2.5 case and have special ductile iron sleeves intalled. The sleeves are flanged at the top to provide lateral strength(no need to fully close the deck) as well as a bigger sealing surface for the head gasket. Then we optimise the oiling system before finally having the cases aligned and decked. Also available is a custom 13mm headstud set. The thread pitch is altered to give maximum strength and stud size is up from 11mm. Heads will have to be modified for the bigger studs.(The pick below is of a 2.2 case that we had sleeved)

Then we add the internals. We use custom made-to-our-spec pistons and rods and a modified stock crankshaft. The pistons and rods are designed to work with the current DOHC WRX heads. They are turned into matched-sets and balanced. The crankshaft is spun balanced to 10,000rpms and then polished. All motors come with coated bearings and a full subaru gasket set.

Each short motor can come fully assembled or in kit form. Please be aware that if bought in kit form, modifications to the case must be completed by a machinist who is familiar with the subaru engine design.

Kit price is $3500
It includes all the internals, the sleeves, the headstuds, and a factory gasket set. It's everything you will need parts wise to build your own stroker engine. You will be responsible for finding a machinist to install the sleeves.

Complete short motor is $5750
This is a fully built short block assembly and comes complete ready to bolt your heads onto. You can either send me your heads for the small modification needed for the bigger studs(included in shortblock price), or have someone do it near you.

Also available is an upgraded valvetrain. It includes new lifters, shim, dual springs, TI retainers and a shim set. THIS IS THE CURE FOR OVER-REV PROBLEMS. There are two different kits available.
8500 RPM KIT is $1250 and uses single springs instead of dual springs. There is no modification to the head to run this set.
9500+Kit is $1450 This kit requires a small modification to the head for the dual springs.
If the heads are sent to me, I can also provide a very good valve job and any porting service. I would send them to the same head machinist who did our race heads and is one of the top head guys in the country. Price on this varies due to certain needs.

Below are some pics of an engine I just did for a person we all know in the forums. I used a 2.2 solid deck case for his engine. I can provide this also, but there is a cost increase due to having to buy the cases from the dealer. These 2.2 cases,although stronger than the wrx case, are not any stronger for our application. The sleeves we use make the stock 2.5 case much stronger.

Any questions, please give ma a call or email me. I would be more than happy to spend some time with you and answer any of your questions about my motors.

Ron Williams
Axis Power Racing
314-865-4409
r.williams@axispowerracing.net





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Old 01-04-2003, 01:17 PM   #2
djerickd
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Whoa!! bump for the stokers!
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Old 01-04-2003, 01:25 PM   #3
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The real question is what is the final displacement? Stoke, Bore?

Either way it looks like an interesting setup for high-hp apps.
-Brad
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Old 01-04-2003, 01:35 PM   #4
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When I pm'd you I thought the 5750 was just for the kit..3500 for that kit is a steal!!! I may be getting a second job now The guys that will be doing the install and all the tuning will hopefully be giving you a call for one of these this summer. Great setup and a great price!
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Old 01-04-2003, 01:42 PM   #5
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About how much will the "small modification" for the bigger studs cost?
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Old 01-04-2003, 01:42 PM   #6
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Question Can you do anything with the EG33

I was specifically thinking the valvetrain components as it is also DOHC, but what about the sleeved block? Want to experiment with the extra engine I have?

Todd
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Old 01-04-2003, 02:19 PM   #7
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DAYYYYYYYYYYYYYYAM
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Old 01-04-2003, 09:28 PM   #8
Axis Power Racing
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Default

chicks- final displacement is 2.4ltr. shorter rods and smaller bore than stock help with high rpms and overall balance.

hobzz-modification to heads is included in the short motor price. if you want just the studs,$225 for the studs and $120 to work the heads.

wawazat- i am not sure if the valvetrain will work with the svx motor. it will work with the new h6 engine. we are already building 2 of these for twin turbo and probably around 1200hp. and yes we are also sleeving that case since it is pretty much a wrx case with 2 more cylinders.
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Old 01-04-2003, 10:43 PM   #9
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Default Ron

If I shipped you the block and heads, would you be willing to check them out for a possible fit for your components?

Thanks,
Todd
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Old 01-04-2003, 11:03 PM   #10
Axis Power Racing
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Sure.

Axis Power Racing
3125 Park ave
St Louis, Mo 63104
314-865-4409
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Old 01-05-2003, 01:17 AM   #11
Phatshiet
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Quote:
Originally posted by Axis Power Racing
chicks- final displacement is 2.4ltr. shorter rods and smaller bore than stock help with high rpms and overall balance.
I thought it was 2.5?
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Old 01-05-2003, 01:35 AM   #12
Axis Power Racing
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No, I start with 2.5 cases and after sleeving them, reduce the bore a little. This is so the cylinder bore walls can be as strong as possible. There is sufficient room to bore to 2.5spec if needed, but I don't do it right off.

Ron
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Old 01-05-2003, 01:52 AM   #13
Gerry
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Would be nice to see numbers on a engine dyno. Not just a guesstimate of what you think it is pushing..thanks Gerry
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Old 01-05-2003, 01:59 AM   #14
David@Vishnu
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Axis this is a very nice offering!! Bravo! So just for grins in your estimation If I bought a kit how much ~ do you think It will cost for a machinest to fully assemble the kit? Also is this too complicated for the average machinest? Also Is the valve kit needed or just nice to have in the event of an overrev will these engines be destroyed without them?
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Old 01-05-2003, 02:03 AM   #15
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Quote:
Originally posted by Gerry
Would be nice to see numbers on a engine dyno. Not just a guesstimate of what you think it is pushing..thanks Gerry
Huh These parts look to be squarely aimed at reliability. We all know what stroked EJ produce hella HP Hes just offering the added reliability. The tuning and turbo are up to you. You can run 227 hp and Im even betting more than 800 HP though not all the time
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Old 01-05-2003, 01:56 PM   #16
Axis Power Racing
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Default

I have put an engine on the dyno and it did make over 800hp. This was on an engine dyno mind you. I know it would be a great thing to post a dyno chart and all, but we aren't finished with the engine yet and I don't want to put it up untill it's making all it can. Besides, I don't believe in guesstimates. When I say it will handle 800, it will handle 800.

My machinist does my cases 10 at a time. I get a decent price because it's almost like an assembly line. He sleeves the cases, aligns and deckes the case halves, and balances the cranks. I do all the rest inlcuding final assembly. I would think it would cost at least $1000 for the case machining through someone else and then figure about $1000 or so to assemble the engine. The assembly takes time as there are many clearances to check. I have never had to alter anything I have had machined prior to assembly, but if you use a different machinist, who knows.
Upgraded valvetrain is just for added rpm reliability. Your stroker motor will run just fine with the stock valvetrain. We saw over 125hp difference after turning our motor from 7200 to 8700.

Ron
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Old 01-05-2003, 03:42 PM   #17
gr8wheels
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Default Should I !

I have a 02 motor from a car with 7k miles that I cant sell Nobody wants! if I send to you for the machining how much is it? I can assemble myself! so I am looking at $3500 + ??
Thanks Kevin
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Old 01-05-2003, 06:42 PM   #18
Axis Power Racing
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Machining the case would cost you $1000. That would include insured return shipping.

Ron
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Old 01-05-2003, 07:13 PM   #19
2MANYCARS
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Ron,
So how much is it for a complete modify by you 2.4L long block? I am asking this for a friend of mine, who is also one of the vendors here.
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Old 01-05-2003, 09:04 PM   #20
Axis Power Racing
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Complete long block would be somewhere between $10-12000. That would include new heads fully ported, Jun cams or adjustable cam sprockets, upgraded valvetrain, all new valves, and of course the shortmotor.

If the correct mix of components were used on one of these engines, 750hp would not be a problem.

Ron
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Old 01-05-2003, 11:35 PM   #21
2MANYCARS
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Ron,
I see, when you say the right components, I am assuming all the biggest parts you can find, such as intercooler, injectors, pump, turbo, etc.. In your case, could you shine us a little light on what kind of right components to go with? T67 turbo from JUN/Greddy turbo kit? 1000cc injectors? I am just a bit confused how a 2.4L H4 motor can produce 750hp-800hp, even if it's at the crank. You have any pics of your project car which made 800hp? Dyno sheets?
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Old 01-06-2003, 12:07 AM   #22
Axis Power Racing
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We used a T70 turbo from Innovative along with four 550cc injectors and four 72lb msd injectors which never ran over 60% duty cycle. Our throttle body is an 85mm mustang variant and we used a basic walbro pump to move the gas from the tank to a swirl pot. Then there is a Bosch 15mm pump pushing fuel to the motor. Other than that, we didn't use anything much different than what most other people are using to make big power from subaru engines. There are of course the necessary upgrades(fuel rails, exhaust, stand alone ecu) to make THAT kind of power, but my engines are happy running at lower hp levels too. I just wanted to see what can be tolerated by one.

To put things into perspective, I recently was shown a head that is used in a turbo import application that made 1100hp from 2.2ltrs. It makes 750 reliably, but when cranked up to produce over 1000 the head splits. Anyway, the heads I used on the stroker motor I ran were measured to have 10-15%more flow in all areas over the other maker's head. This was all measured after porting and final spec. Making power from small displacement 4 cylinders is not a big problem, it's making it live that is the main hurdle.

Pictures of the finalised car and engine will be shown, but not before I debut it and run the car to it's full potential. If you look back into the older threads of the proven power bragging rights forums, you will find pictures of some of the components we used. Look for threads started by boogerwrx. The owner of the car is not keen on anyone seeing the progress and wants the car to remain somewhat elusive. This may seem strange, but I fully agree with the owner. Why give away all our little secrets when it's our money we are spending on development and prototyping of parts. He wants the fastest wrx and he shall have it.

As for my engines, I am not forcing anyone to buy anything and I am not overly pushy about selling one. All I want to do is offer a motor I KNOW is strong and is superior to anything else out there. We did spend the money in developing the right combo of parts and we have to recoup that somehow and selling properly built engines is our way. There are only a handful of true subaru high hp engine builders out there and I will put one of my engines up against any of there's any time. There is a reason why the manufacturers we used to develop our parts are going to be releasing a version very similar to what we had made. The stuff works and is the best it can be.

Ron
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Old 01-06-2003, 12:07 AM   #23
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Default Re: The next level in stroker motors

Quote:
Originally posted by Axis Power Racing
Well, after over a year in the making, the next level in Subaru stroker motors is now available. Tested to over 800hp these motors will give you the reliability you have been looking for.

Dude, where are you getting these numbers from?

You keep throwing this 700-800hp # around like its simple.

I dont even know of more than 1 maybe 2 subarus eEVER to break into these nubers and those cars are more secret than Area 51.

How bought some background into this.

Give us some info, some proof.

Your site doesn't even talk about subaru's.

Lots of people look at this as a good alternative but especially when we are talking 5 grand+ for a engine that wont have a warranty we get very questionable as to who we buy from.

Any info would be great.


<---needs a stroker within 60 days.
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Old 01-06-2003, 12:34 AM   #24
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Sorry about the webpage. I just moved back to St Louis from Los Angeles and my partner here is a big Miata and BMW guy. The guy doing the webpage is entirely too busy right now and we are doing the best we can. There will be some pics on the page of the drag car and of the 4 and 6 cyl engines.

As for 700-800hp being simple to make. I never said that. I said the engine would survive that level of power. Hugh steps have to be taken to make that kind of power, but 500hp is starting to be the norm and it won't take long until even bigger numbers are almost everyday. It occured to me that nobody that does stroker subaru motors had really talked about what kind of power their engines made or what they could withstand. So what we did was inspect one kit from basically every subaru stroker engine supplier and found areas to improve on them. Did we copy them, no. We took their initial design and modified it to produce what we have now which is a strong reliable engine base.

Proof is forthcoming. I have scheduled a second dyno session in early Feb and I fully expect to make more power than that what I did the last time. We didn't spend over $100,000 last year to to be inferior. Alex should have his motor up and going by late Jan and Shiv is doing the tuning so it should be a stunner. I am also sending an engine to Shiv for the SCC project 2.5rs. That's where the real test will lay. Those magazine guys are always so much harder on cars than the owners.

Ron
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Old 01-06-2003, 12:59 AM   #25
2MANYCARS
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Ron,
Thanks for the tuning-light of your project. Help me to understand something here, you are using 8 injectors for the 4 cyl engine? Wouldn't that flood the engine? You say you are using the Walbro 255 l/h + a Bosch 15mm pump, which calculates to how many l/h? What about timing? Sorry for all the questions, I am building up my WRX also, don't want to be the fastest, because you can never be the fastest, but I just want to learn a little bit more. Thank you for your time. Also, the user boogerwrx, could you please kindly point me to his post? I can't find it. Thanks!!
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