Has anyone heard about boring the entire sleeve section out so no piston sleeves are available and then replacing them with a forged sleeve section that has thinner walls than you could achieve by just by just boring out the original sleeves?

 

i bet compression would be a key... would the thinner walls plus higher compression be a recipe for disaster?

 

Yes, that's the only way to do it it you want to bore it. Typically the thinner sleeves are for people that are going to stay at stock bore and don't care to go larger. I feel the best appraoch is to put in the thick sleeves, so you have the option of boring it out later as things wear out or break.

The largest bore you can get is 90mm, though I wouldn't suggest going over 89mm (90mm bores tend to warp). 89mm on an H22 is around 2257 cc (2.3) and boring an H23 to 89mm gets you close to 2.4

 

I agree with everything you both have said. Especially when it comes to boring existing piston sleeves. What I am talking about is removing the stock sleeves and replacing them with a forged section that can be thinner than stock and stronger than the original sleeves. Has anyone ever heard of such a thing?

 

so you mean the thinner thicker sleeves so you can throw in bigger pistons and have the engine handle it?

 

does anyone know how much stroke 2point6 has? Would a setup of: h22 motor bored out 89mm, h23crank be comparable to 2point6's motor?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote"> does anyone know how much stroke 2point6 has? Would a setup of: h22 motor bored out 89mm, h23crank be comparable to 2point6's motor? </TD></TR></TABLE>

no. 2.3ltrs

 

i thought that an h22 motor with h22 crank at 89mm would be 2.3l, wut wud the disp be of a h22 motor at 89mm with h23 crank? why wudnt it be 2.4L

 

90.7mm stroke and 87mm bore = 2156.730 cc (stock displacement)

90.7mm stroke and 89mm bore = 2257.029 cc (stock crank/2mm overbore)

95mm stroke and 89mm bore = 2364.033 cc ("stroker")

I guess you could round up and call it a 2.4 for posterity.

 

are the bores and strokes of various F and H series motors in the FAQ section?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote"> are the bores and strokes of various F and H series motors in the FAQ section?</TD></TR></TABLE>
Not sure, are you looking for a specific?

 

f20b, h22, h23, f22, f23. btw, what are you revving to?

 

f20b = 88mm stroke, 85mm bore
h22 = 90.7mm stroke, 87mm bore
h23 = 95mm stroke, 87mm bore
f22 = 95mm stroke, 85mm bore
f23 = 97mm stroke, 86mm bore

I am reving to 8k.





Modified by 2point6 at 4:38 PM 4/2/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lude4u &raquo;</TD></TR><TR><TD CLASS="quote">The largest bore you can get is 90mm, though I wouldn't suggest going over 89mm (90mm bores tend to warp). </TD></TR></TABLE>

I actually can't recall of hearing one person say that their 90mm H-motor had warped cylinders....

Most people don't go over 89mm because if they do, they have no leeway on reboring if something breaks and scars the cylinder walls.

Just wanted to clear up that misinformation

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">

I actually can't recall of hearing one person say that their 90mm H-motor had warped cylinders....

Most people don't go over 89mm because if they do, they have no leeway on reboring if something breaks and scars the cylinder walls.

Just wanted to clear up that misinformation </TD></TR></TABLE>

Now you have.... Cylinder distortion with 90mm bore is common. I no longer run this set-up for a number of reasons besides warping. Yes, I am speaking from experience.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point6 &raquo;</TD></TR><TR><TD CLASS="quote">

Now you have.... Cylinder distortion with 90mm bore is common. I no longer run this set-up for a number of reasons besides warping. Yes, I am speaking from experience.</TD></TR></TABLE>

Well damn! Now I know!

Just curious, how did you figure out that it warped? Did it sieze up, or was it a measure-while-it's-apart kind of discovery?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">

Well damn! Now I know!

Just curious, how did you figure out that it warped? Did it sieze up, or was it a measure-while-it's-apart kind of discovery?</TD></TR></TABLE>

This "discovery" was made on both my larger engines after they blew up.

 

Would a H22 stroked to a 2.364L be a safe setup to run boost on?

 

I wouldnt do it... Its pointless to try and increase stroke on a boosted motor. Why would you? Extra torque? What, 300-700 ft lbs of torque from the turbo isnt enough for ya? You need that extra 7-11 the increased stroke is going to give you?



89mm is too thin, stick with 88.

Poor rod angles contribute to increased cylinder pressure. Not something you want with a boosted motor.

Go 88 x 90.7 with boost and call it a day

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point6 &raquo;</TD></TR><TR><TD CLASS="quote">

This "discovery" was made on both my larger engines after they blew up.</TD></TR></TABLE>

Large strokes and poor r/s ratios warp bores. Also, the type of sleeve you use plays a factor as well. 90mm bores dont just warp.

 

Anybody remember those 2.5, 2.7, and 3.0 liter H22 engines that were being sold on ebay for horrendous prices? Apparently they use welded on deck plates or something... no matter, if they're real, they probably only rev to 2k ::shrugs:: I wonder if anyone got took.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SunShine287 &raquo;</TD></TR><TR><TD CLASS="quote">Anybody remember those 2.5, 2.7, and 3.0 liter H22 engines that were being sold on ebay for horrendous prices? Apparently they use welded on deck plates or something... no matter, if they're real, they probably only rev to 2k ::shrugs:: I wonder if anyone got took.</TD></TR></TABLE>

That thing was a bad idea turned into a bad product... I posted about it in a thread on here under one of my other SN's, do a search for 3.0 H22 (I think it was created by cpforyou) and see if you can dig it up... I think I may have taken the images I used in that post out of hosting but I can put them back up if needed.

I broke the whole set up down in that thread so you guys could get a better idea of what it was, what it consisted of and my opinions on it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Innovation &raquo;</TD></TR><TR><TD CLASS="quote">I wouldnt do it... Its pointless to try and increase stroke on a boosted motor. Why would you? Extra torque? What, 300-700 ft lbs of torque from the turbo isnt enough for ya? You need that extra 7-11 the increased stroke is going to give you?



89mm is too thin, stick with 88.

Poor rod angles contribute to increased cylinder pressure. Not something you want with a boosted motor.

Go 88 x 90.7 with boost and call it a day </TD></TR></TABLE>

Right, so if I stroked the H22 and used a longer rod, I could achieve a better R/S.
My plans are to increase H22 bore to 89mm sleeves by Golden Eagle. Have a H23/F22 crank offset grinded to 92mm and use a longer B-series rods (5.862) and get some custom pistons. I figured that would be the perfect boost setup. About 2.4L of displacement plus a 1.62 R/S.


Modified by dominate9 at 9:41 AM 4/6/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dominate9 &raquo;</TD></TR><TR><TD CLASS="quote">

Right, so if I stroked the H22 and offset grind the crank to 92mm and used a B-series rods, I could get a better R/S and have more displacement at the same time.</TD></TR></TABLE>

With the H22 crank you can go 87.7 or 93.7 if you offset rind to the B series journal. With the H23 crank you can go 92 or 98mm with B series journals.

 

My plans are to increase H22 bore to 89mm sleeves by Golden Eagle. Have a H23/F22 crank offset grinded to 92mm and use a longer B-series rods (5.862) and get some custom pistons. I figured that would be the perfect boost setup. About 2.4L of displacement plus a 1.62 R/S. Don't you think?