I just got finished building a h series motor and we used maule pistons with the frm sleeves. Its a realy stout motor so i was wondering what was the most all motor hp anyone has made on stock frm his sleeves.

Im pretty sure this motor wil make between 270hp-280hp . I never saw any h series motors making this much on stock sleeve (most people sleeve on a build this nice).

I just though it would be cool if this was the highest all motor h series on frm sleeves let me know guys .

55mm stock block
f23 crank
crower rods
h22 mahle pistons 11.5 cut 12.2 compression
ported and polished head by us
pro2 cams

 

Stock stroke? I think Jaywest might be up there with 246ish whp. What else is done to the motor that's supposed to make that much hp?

 

i call bullshit you couldnt even spell the piston brand correctly its mahle pistons not maule

 

hahaha, do you guys have some history that we dont know about? Or did you just poor yourself a nice tall glass of **** IN MY CHEERIOS?

 

also curious on the rest of the set-up....
i belive jaywest is the fastest with a stock block...he was just on a jdm pistons and was h2b...

i have made 245whp on a h2h with type s pistons..in a heavy car thought and every dyno reads differently...


with a stroked h2x combo on the high cr mhale's i could see some good power coming from some...

 

From talking to mikeyspec about the 95 stroke + mahle golds. This really needs to be spec'd out perfectly for it to work. Otherwise there will be a lot of mashing going on lol.

 

I dont realy care what you call bull **** . I have forgot more about motors then you will ever know. I will leave the miss spelled word just so everybody can see why you made a *** out yourself.

Now as to the people that are actually interested would you rather me put the specs here or do a build thread . I dont mean stock stroke by any means just stoke bore with frm sleeves . Its running a f23crank with 11.5 h22 pistons . Now do the math on that and tell me how its 15.1 compression and not possible bla ,bla ,bla. Then ill show you how i forgot more in my sleep then you will ever know about motors .

 

I made 252hp on type s pistons before changing to cp . Running type s pistons a h23 crank is about 12.1 compression which makes for a nice all motor build with a stock bottom end. I have two on the engine stand now being built . I build these motors all the time . I mean i cant see anything for a better bang for the buck then a h23 ,type s , 12.1 bottom end . That with a set of pro twos has made over 250hp in every motor that i have built and pretty reliable unless you fell the need to turn the motor to rpms that it doesnt make power at any way.

 

basically i had a friend that wanted to copy my new build but with out having to buy a sleeved block so we ended up trying to see how much power we could get out of a frm sleeved block . Its for a street car so we didnt go with pro3 just pro 2 but im sure it will be a nice build never the less.

If you made 246 h2h im sure you would be over 250h2b . My dd makes 252 but its h2h also so it would be a very stout 260hp plus motor in a h2b application . hell its got about 30,000 miles on it now so ill just leave it were its at and concentrate on the new build .

 

im not sure about a 15.1cr on a f23 crank with mhale 11.5cr pistons...
probally would be closer to 14.1cr..inless it has major milling and valve work....

im doing a sleaved f23 build right now with k20 pistons it's around 13.5.1cr on crower f23 lenght rods...but only on skunk 2 tunner 2cams its a nitrous motor only 86.5mil pistons..
but im still hopeing for round 270whp,,since my type s oem h22 motor made 245whp on the same head thats going on the f23 based motor

 

I choose the h block for the 87mm bore instead of the 86mm bore that you have . I would have to cc the motor to see what the exact compression would be but that wasnt my point. My compression is 12.25 after i had my pistons cut. My point was by running h22 pistons (rist pin is lower then h23 or f23 pistons ) is a 11.5 compression piston becomes close to 15.1 not that im building a 15.1 compression motor .

I made 252hp on type stage two cams with type s pistons and didnt gain 1 hp above vtec when i changed to pro 2s . I would never say the stage 2 cams are better but there still a very nice cam stick with them.

Also bore adds alot more cc then stroke . My dads 85mm stroke ,88mm bore motor has more cc then this 97mm stroke and 87mm bore.Since you went .5 over your motor will be real similar to this . Also expect a tome of tourqe man and im sure with the supporting intake and header you will be real close to 270hp.

 

If the h23 rods would work on a f23 crank you could mis match rods ,crank and pistons to get a nice compression ratio with out cutting the pistons.

 

i wouldnt see why a h23 rod woulnt fit a f23 crank....could make for a nice combo on frm mhale's...probally around 14.1cr plus...but im thinking the piston to deck hight might start too be playing a factor

 

Hows the piston to deck height?

 

Umm, I think you should look up the math formulas for determining displacement. The formula is: # of cylinders * .7854 * bore * bore * stroke.
This formula is for measurements in inches. To convert the formula for metric measurements, use millimenters and divide the answer by 1000 to get cubic centimeters.
Your dad's combination of 88mm bore and 85mm stroke yields:
4*.7854*88*88*85=2067926.784, which is about 2068cc
The other combination with 87mm bore and 97mm stroke yields:
4*.7854*87*87*97=2306540.7288, which is about 2307cc

Now, I'm no expert, but when I talk about things that I know really well, I try to at least sound as intelligent as possible, and not have so many typing errors. I know you're only trying to figure out exactly how much power this engine could make, and how much power similar engines have made, but when you have several typos in each post, it makes you sound like you don't know what you are talking about. I don't mean to upset you, or make you angry, but that's just how you come across.

 

his dads motor was 95x88 not 85 was a mistype

 

pmed

 

That just further proves my point.

 

SO can anyone actually post some pics of these pistons compared to the type-s's?
If you pull it off with the 97mm alot of people would drop jaws.

 

Heres some pics he took of him gettingthe pistons cut down to the compression he wants for the motor hes talking about.....

 

Nice, what i was asking were to take pics of the mahle's and the type-s's side by side.

 

ah i gotcha

 

Sorry its always late and im trying to do fifyt different things when i log on to the computer. Truth is if any of you that own your own business know having time to get on the computer is the last thing i have time for . Ill try to pay a little more attention nest time.

I didnt see any need for getting into all the math in this thread . Also i cc every motor i build (normaly a few times )in order to get the compresion i want .

I just thought it would be some nice information for these guys to know a h23crank ,rods with 88mm pistons made more displacement then a f23crank,rods ,with 87mm pistons.

For the guys that can do the math or at the very least pull up a engine calculator then of course you can figure your own motors . Most people know a h22 doesnt have a bseries 85mm stroke and would have caught that right off before trying to make somebody else look dumb .

I do not have time to argue about making typing errors . I know enough to do what i do so lets just leave that at that and talk about the motor at hand.

I have built quit a few of these motors and would be glad to answer any questions you have . I dont mind you saying i thought that wouldnt work ,but dont tell what ive done is wrong because you cant understand it.

The f23 rods are alot skinnier then the h23,h22 rods and they use a smaller bearing . They are no were close to the h23 rod and will not interchange .

 

If he was going to cut them down. Any reason why he just didn't use type s pistons?

 

i guess i never even looked to compare my h22/h23/f23 rods i have laying around...but now that you say something they are skinnier...f23 rods are specific too the car or k20 rods can fit?

the piston too deck hight on type s pistons with f23crank and rods is -.039
piston to deck hight on type s pistons with a h22crand and rods is 0.006
not sure what the piston too deck height is on a f23 with k20 type forged pistons?