I have been bitten by the build bug and so far I find myself to be on a roll. I finished my 91 Acura Integra strong with an LS/Vtec Build that is nothing short of satisfying...then Upon buying a 95 Civic EX Coupe, I snagged a JDM h22 Type S, built it crank up and that's been even MORE pleasing.

After netting yet another 95 coupe, I came across an F22 (motor and trans) for free, and I STILL have Parts lingering from a second JDM h22 type S motor.


here is my goal.

F22 Bottom end
JDM H22 Type S Head (Vtec)
Turbo

Questions:

Can the PISTONS from a JDM H22 Type S motor fit in the F22?
Will this bump up compression?
Will the head go on this motor without much problem?
What Kind of Power Can I look to make N/A?


Now I'd LIKE to Turbo THIS set up rather then my H22 because it will be cheaper overall. My JDM H22 is Closed deck, AND has a full race girdle so I know that stock it can take ALOT of boost with a good tune, but the F22 has Iron Sleeves which are EXELLENT for Boost (If I can get by on them without sleeving), just trying to get some feedback.

 

From what I know, you'd be better off boosting the F series. The head flows better, and without having the FRM sleeves, you will have less to worry about. Not that the H series can't be boosted.

Now sell me your Type S head!

 

f22 bore = 85mm
h22 bore= 87mm

the block will need modification for the h22 head to fit. search prelittlelude or piratemcfred....they have done the h22/23 heads on f series

 

^^ This.

And I heard that the G22 setup is very good for boost.; since, the compression after the build isn't as high as a stock H.

 

I read prelittlelude's thread and sent him a PM specifically about what I needed. Besides the Low Comp it also has the Iron Sleeves, Exellent for Boost and Forged Pistons if that was the choice.


What I WANNA Do though?

F22 Block
h22 Type S Head
H22 Type S Rods
h22 Type S Pistons
Euro R Intake Manifold
Turbo @ 14psi's..

I have a spare JDM Type S motor with a Spun bearing that I'd LOVE to incorporate into this F22 build if possible, I would be running this set up WITHOUT the turbo until about July then I'd Turbo it and YES I want the compression the Type S Rods and Slugs would Yield PRIOR to boost.

 

And he said the only modification he had to do was to the deck to bump compression with the stock pistons he had in there, otherwise another piston choice would require No mods at all, granted i read it all correctly. He's also using an h23 Head Gasket.

 

Why do you want the Type S pistons(11.0:1) when you're going turbo; especially, with the 14psi?? I don't think its safe.

 

Well I wouldn't be going TURBO immediately, and right now since the parts are laying around, and I'd WANT the most performance N/A as I can get at this price (Free-99), i'd figure why not go for it? And when it does come time to go turbo, I just throw the STOCK f22 pistons (Lower the compression for yet again, Free-99), and Boost it.


I just have to know and confirm that the Type S internals can be drafted over to the f22 block without any major modification, if so I can effectively neutrelize the ONLY weakness (imho) to the Type S H22 motor....FRM Cylinders = Not good for high levels of boost.




Also, it would cost me LESS to Boost this in the long run then it would for me to Boost the Type S I already heave built in my other coupe. The G22/23 Block has ALWAYS interested me, and once I had the parts laying around and the chance to do it presented itself...I had to. NOBODY around my way has a G22, let alone one with Type S internals..I think that it would be a BEAST..i'm gunning for Type S Stock Numbers with the set up. For now.

 

type s pistons WILL NOT fit in the f22 block. the bores are different.

please provide the info where the FRM is not good for boost? show me 3 cracked sleeves. the sleeves are extremely strong it is the ring lands and rod bolts that are weak.

the weakness to the FRM is the fact that they do not accept forged pistons...mahle and cp have mixed reviews.

you need to do a lot more research.

no the only modification to making the h22 head sit on the f22 block is not decking it. the oil and coolant passages are different. you have to modify the block by using hondabond and modifying a f23 head gasket....please do more research

prelittlelude and those guys use the stock f series internals not h

 

Well YES, FRM itself is STRONGER then Iron Sleeves even so I will admit fault in not properly stating that it is the RING LANDS that are the weakness in the H22 composition as forged piston rings tear up the walls of the H22 (Hence why I have Mahle Golds in my Other build).

Modifications to the HEAD would have to include blockage of Oil Passageways, in which Prelittlelude describes to the tee so the research on that HAS BEEN DONE, ontop of the Gasket modification.

STILL, I'd like to wait to hear from "HIM" as to whether the H Internals won't work REGARDLESS of what's done as well as get input as to what he plans on dropping in there as far as pistons go when he stops using the stocks.

 

do the math man the 87mm piston will not fit into the 85mm hole. it is too big. you will have to bore out the sleeves to make it fit. then you cannot place the f22 piston back in there because the hole is too big.

have you considered stroke, piston height, rod length?

h22 f22
Rods 143mm 141.5mm
stroke 90.7mm 95mm
height 31mm 30.5mm

so you do not see the problem with decking the f22 block so therefore making the deck height shorter then throwing in a longer rod with a taller piston on a crank that has a longer stroke?

are you sure you did your research?

 

and im pretty sure the type s pistons are taller than the standard h22...not sure though

 

In order to run H22 rods in an F block you will ether require 29mm Compression height pistons or a taller deck height. The H22 Type S piston stock compression height is 31mm. That would put you out of the hole approx. 0.1mm. Or you could go with a thicker 87-88mm bore head gasket.

Also to fit 87mm pistons into an 85mm bore and then reliably boost it, would require the block to be sleeved.

 

Ok, I see what both of you guys are saying and it's putting this into perspective, I may be forced to stick with the Stock F Internals which to my understanding isn't ALL that bad an idea N/A before going boost if I do get the head to work on there.

I am FORCED to ask this next question out of sheer curiosity..and While i'm expecting the answer to be no, would be cool if it was yes.

Can the Type S PISTON itself install onto F-Rods? Or would the rods be insufficient in moving a heavier slug up and down and bend/break or do they not link up at all?

 

Well I don't have any personal knowledge of the sort but they do both have 22mm Press fit wrist pins. If you have the tools to get them apart and back together it might be worth a shot. I do know for sure that you cannot use floating wrist pin pistons on the F22 rods.

 

I'm going to look into it and give it a shot. I REALLY want the H22 Compression FOR NOW until it's time to go boost. H22 Slugs on F22 Rods sounds like a GOOD deal right along with the head..

I pulled everything apart and i'm starting to take measurements, I have a guy with a G23 build assisting me, I guess between me, him and what I can draw from here we can get something accomplished...I'll post pics soon.

 

yea im running a fully built f22 with t3/t4 t40 turbo, front mount, chrome chip ecu, etc. its doin mid 13s with interior no weight reduction besides the CF hood good motor for boosting that block is basically bullet proof holds tons of boost

 

What was your Piston/Rod Choice? The testament to the Turbo-Durability of the F-Series motor is highly praised around here but oddly enough few people take the route. I guess B-Series is the more popular, hence easier method for most but i'm striving to be different in this case.

I want.

F22 Block
JDM H22 Type S Vtec Head
H22 Pistons
F22 Rods
Full Race Girdle (If it can be transfered over from my H22)
Euro R Intake Manifold

^^That would be my N/A Set up


Then when it comes time for boost..

Stock F22 Pistons
t3/t4 Turbo (Full Kit)

ECU and TUNE

I wanna run more then 16pounds reliably...

And to anyone who'd know, could I transfer the Girdle from My H22 to this F22?

 

Keep the Stock F22 head, pretty sure it flows better than the H22 head.

 

The f22 head flows better then a Dual Cam H22 head? Is there some kinda literature I can read supporting that? Not calling you a bullshitter but Damn I figured the H would outflow the F head seeing as both engines were directed for different purposes..

 

i do know that the f22a heads flow extremly well....it flows right there with the h22. the f22a has a very big casting and a lot of material can be removed.

 

As I read a few things from a google search it's half and half...I guess my question at this point would be would it be smart to sacrifice HAVING vtec for NOT having Vtec...

Oddly enough the piston situation is still drawing the most of my attention, i'm praying that these H22 slugs fit on the f22 rods.

 

dude i dont wanna interupt your thread or anything but i wanna boost my f22 on my accord i started a thread called i wanna boost my f22 if anyone could help me thatd be awesome!!!!!!!!!

 

G motors are very powerful and great to build

 

G series are 5 cylinder engines used in older acura legends. Wish we could all move away from calling these H/F hyrbrids "G's".

But to the OP

Why do you want to know about the h22 piston to f22 rod combo? Either your going to run that high compression piston with a larger bore which would need to be sleeved. or stay the smaller f22 bore? Just trying to get on the same wave length as you

Also who says you can't use the H22 piston and new sleeves with boost? Yes its higher compression but as long as your bottom end can take it plus some boost your looking at a much faster spooling turbo setup (plus badass points for going high compression turbo build )