[Rhinoman]

This doesn't look right to me:

The piston is supposed to be at TDC but I would expect it to come up to the top of the bore if it was the same height as a J18 piston. Maybe you can check on yours that the pistons do come all the way up.

 

[Sathsayin]

This doesn't look right to me:

The piston is supposed to be at TDC but I would expect it to come up to the top of the bore if it was the same height as a J18 piston. Maybe you can check on yours that the pistons do come all the way up.

Yeah i saw that but i have no clue what it supposed to look like in any engine. Im learning and im hopeing to be able to help someone. I hope to get plenty of feed back and questions.

Here is some more info

[quote:5bba608f9a="chief2001"]I never asked but is there a difference at TDC using the J18 piston rod compared to J20 piston rod when using the b20 pistons? ALso what crank were you using? J20? J18?

Sorry for the late response. I have been really busy with my car and aerio plus other things. There is no difference at TDC when using the J18 or J20 piston rods since their both the same. They are better built than the J23 piston rods as they have a higher rate of breaking under severe stress. In my motor I have J20 piston rods with J23 pistons, better for me in the long run.

which brings up the question.... what is diffrent in these blocks? I seem to think nothing... it must be in the head are he is lieing. but then what about the esteems j20 head... on the 1.8l block.... are all these blocks the same cast with diffrent part numbers.....


the guy who took the pics said this..

Hello, I'm the owner of the Sidekick with that 2.0L swap and those are pics I took of my engine work.

Yes, that pic show the B20B pistones at TDC. They are connected to OEM spec J20A rods and crank shaft fitted on a J18A short block. It all works flawlessly. As tested when recently installed, it gave a compression of 280'ish, but after break-in it raised to 290'ish with a max of 5 pounds difference from one piston to another (and not even that).

I'm using a MS full stand alone system (MS1 V3.0) controlled by a 36-1 trigger setup and using OEM coil packs on WSCOP (Wasted Spark Coil-on-Plug) method. On the intake I have a J23A manifold/TB and on exhaust I'm still lacking with a stock 2000+ 2.0L manifold. Still, managed to do 15.3's on the 1/4 mile on very poor all-weather tires deflated to 12 psi.

Well, I hope it helped. Any ??? feel free to ask. BTW, Chief, I've read you on a couple of Suzuki forums. Have you been able to start your engine work?



the guy actually is a member... too bad its been 4 years... and zero post...

http://www.suzuki-forums.com/members/jarysidekick.html

 

[Rhinoman]

The crank is a longer stroke, the rods are the same length and the pistons are the same except for the dish, now that would imply that the block on the J20 would be 3.5mm higher. Maybe thats a bad picture but maybe its really a J20 block not a J18 block?? searching round the net seems to bring up more questions than answers.

 

[Sathsayin]

The crank is a longer stroke, the rods are the same length and the pistons are the same except for the dish, now that would imply that the block on the J20 would be 3.5mm higher. Maybe thats a bad picture but maybe its really a J20 block not a J18 block?? searching round the net seems to bring up more questions than answers.

The crank is a longer stroke, the rods are the same length and the pistons are the same except for the dish, now that would imply that the block on the J20 would be 3.5mm higher. Maybe thats a bad picture but maybe its really a J20 block not a J18 block?? searching round the net seems to bring up more questions than answers.

True...but he did custom fit the b20b pistons to fit the rod... he ground the ends for the clips... whose to say that the pistons fit diffrently on the b20b then the j20a pistons.. take a look at this picture...

possible that it will not fit right wiht the j20a pistons.... but becasue he modified those... thats out of the scope of what im gonna do haha... but at least if hes telleing the truth we know that the j parts are interchangable..

 

[Sathsayin]

well looks like hes running something in there.... thats definitely a valvecover off an aerio......

 

[fordem]

j18a 84 mm bore, 83 mm stroke
j20a 84.0 mm bore, 90.0 mm stroke

2 DATA MINED FACTs, NO ID DIDNT MIC the bores, not today.
2 more data mined facts, the Real USA EPC suzuki shows 2 radical diff. pn for both USA motors heads and blocks.
that is a fact. , other countries motors, have not a clue and poster is in LA. so....... USA.

Regardless of my country of residence - here's what the EPC shows...

For the US market 1.8 Esteem (SY418) - 99~02 ...

Cylinder head - 11100-65G00

Cylinder block - 11200-65G22
Cylinder block - 11200-65G60 - 02 models

For the US market 2.0 Vitara (SQ420L) - 99~03

Cylinder head - 11100-65G00 - 99~02 models
Cylinder head - 11100-65G01 - 03 models

Cylinder block - 11200-65G22 - 99~00 models
Cylinder block - 11200-65G22 - 01~02 models:E3
Cylinder block - 11200-65G23 - 03 model:E3

As you can see, the 11100-65G00 head was used with both the J18 & J20 engines, and so was the 11200-65G22 block - that's all I'm saying.

The data above is extracted from Suzuki's electronic parts catalogue, it was not presented earlier because I was in the US on a visit and did not have access to my copy of the EPC - what's presented below is an opinion.

In all honesty, when I first came across a suggestion, in a forum, that the two engines shared the same head & block, I was sceptical - I expected a taller block to accomodate the longer stroke, so I searched the EPC and found the evidence to support the claim.

I've never stripped either engine to make measurements, but there are several ways in which the additional cylinder volume can be accomodated without the compression ratio becoming excessive.

The same bore with a longer stroke will give you the increase in swept capacity, and a shorter rod (if the rod length can accomodate it without bringing the piston skirt too close to the crank throw) or a reduced compression height (if the piston can accomodate it without bringing the top ring too close to the crown), or a larger dish in the piston crown.

 

[Sathsayin]

a little at a time i suppose !

 

[Sathsayin]

Suzuki, esteem, vitara, sx4 engine rebuild - YouTube

 

[robrocker007]

has anyone istalled those b20 pistons with the stock ECU?

I am rebuilding my j18 and going to make it 2.0 and would like to know if I can pit the b20 pistons and run with the stock ecu.

any help is appreciated

 

[tdrrally]

any news on this old thead?

i'm looking at building an 11:1 j18 or j20 engine for a rally project

will the b20 pistons work?

 

[robrocker007]

Yes the b20 pistons would work with j18 and j20. The only problem is that b20 stock pistons are press fit. J18 and j20 are full floating.

Stock b20 will increase the compression to 275psi.

The can be modified at a machine shop to use them with clip in the pin

Here is a picture of wiseco low compresion on a j20 block.