First off I searched but with the b20/vtec and the slash and what not, its hard to find a lot of threads.

Simple question, I want to build a b20/vtec and I need it to be reliable. So far this is what I'm hearing.

Parts list
Piston
Rods
Rod bolts

And stay around 7800 and it should be pretty reliable, am I forgetting anything ?

 

Anyone in the late late crew feel like answering ? I did my home work, just double checking everything. You can never be to careful

 

i got a type r oil pump and waterpump in my b20vtec just a thought

 

are you planing on keeping the stock sleeves

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">First off I searched but with the b20/vtec and the slash and what not, its hard to find a lot of threads.

Simple question, I want to build a b20/vtec and I need it to be reliable. So far this is what I'm hearing.

Parts list
Piston
Rods
Rod bolts

And stay around 7800 and it should be pretty reliable, am I forgetting anything ?

</TD></TR></TABLE>if you want to take a b20, and build it i would tell you to stay around 11.7:1 cr and not rev it past 8600rpms(with the stock sleeves). but as far as reliavility, i been running a b20z bottomend for the past three years. it's completely stock, stock rod bolts, rods, pistons(opened the valve reliefs). at the moment, with a b16 head, bc4 cams(they need more than 10:1 cr to work well), aebs im, an-r header, and 3" exhaust the engine is putting 210whp/152wtq! i rev this engine to between 8200-8600 rpms, when i go to the track! i hope that helps you out a little!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokey2.0 &raquo;</TD></TR><TR><TD CLASS="quote">if you want to take a b20, and build it i would tell you to stay around 11.7:1 cr and not rev it past 8600rpms(with the stock sleeves). but as far as reliavility, i been running a b20z bottomend for the past three years. it's completely stock, stock rod bolts, rods, pistons(opened the valve reliefs). at the moment, with a b16 head, bc4 cams(they need more than 10:1 cr to work well), aebs im, an-r header, and 3" exhaust the engine is putting 210whp/152wtq! i rev this engine to between 8200-8600 rpms, when i go to the track! i hope that helps you out a little!</TD></TR></TABLE>

thats what i've heard a lot of people say on ht. thats why if i was to go that route i would just go with some 11:1 wesico pistons and eagle rods(if necessary). other than that a lot of people recommend going with a vtec oil pump.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by siR cr-x &raquo;</TD></TR><TR><TD CLASS="quote">are you planing on keeping the stock sleeves</TD></TR></TABLE>

Yep, and only looking to rev to 7800 because I had a good builder recommend that limit

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SPOON_FED_DC_2 &raquo;</TD></TR><TR><TD CLASS="quote">i got a type r oil pump and waterpump in my b20vtec just a thought
</TD></TR></TABLE>

Aww good call thanks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokey2.0 &raquo;</TD></TR><TR><TD CLASS="quote">if you want to take a b20, and build it i would tell you to stay around 11.7:1 cr </TD></TR></TABLE>

Yeah I forgot that, since this will be all motor, I do want to bump the compression, so 11.7 is the limit then. Anyone besides Darren care to comment on that ?

 

Modified by -Darren- at 7:35 PM 5/26/2005

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -Darren- &raquo;</TD></TR><TR><TD CLASS="quote">ouch, did you really have to put me out there like that. i wasn't recommending anything for it, i was stating what i hear everyone on ht say about running the swap with stock sleeves. </TD></TR></TABLE>

I was not trying to put you out.

I did not want to just put, anyone else care to comment, like I totally skipped over your post

 

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

I was not trying to put you out.

I did not want to just put, anyone else care to comment, like I totally skipped over your post </TD></TR></TABLE>

lol, my fault i was just caught up in another thread and thought you meant it in a bad way, oops.

now that i look at it, it makes sense, lol. let me just go get some rest, its 333am good luck with your build up, i plan on doing the samething when i get back from Iraq.

 

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

lol, my fault i was just caught up in another thread and thought you meant it in a bad way, oops.

now that i look at it, it makes sense, lol. let me just go get some rest, its 333am good luck with your build up, i plan on doing the samething when i get back from Iraq.</TD></TR></TABLE>

stay safe out there

So any other comments

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">Yep, and only looking to rev to 7800 because I had a good builder recommend that limitAww good call thanks
Yeah I forgot that, since this will be all motor, I do want to bump the compression, so 11.7 is the limit then. Anyone besides Darren care to comment on that ?</TD></TR></TABLE>
the bottomend can take more than 7800, if you take care of it. i actually had a friend that was running his b20, with wiseco 11.5:1 pistons. but the gsr head he had was milled(we never found out how much), so the compression was more like 12.2:1. btw the pistons were 85mm weisco pistons, on stock sleeves, reving to 8500-8900 daily

 

So what else should I do to the block, should I get it honed if I put new pistons in ? What about the bearing clearances

 

I think as long as you get it tuned by a good tuner, a b20 can be as reiliable as your standard b series just like smokey says, able to surpass 8000rpm's easily.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">So what else should I do to the block, should I get it honed if I put new pistons in ? What about the bearing clearances</TD></TR></TABLE>if i were you, get a hold of a good machine shop in your area. have them do all the work for you, it might cost you money but it will be done right!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokey2.0 &raquo;</TD></TR><TR><TD CLASS="quote">if i were you, get a hold of a good machine shop in your area. have them do all the work for you, it might cost you money but it will be done right!</TD></TR></TABLE>

As for the honing goes I might send that to them. But I am capable of building the engine. I just wanted to know if it would be a good idea to check the rod bearings and main bearing clearances

 

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

As for the honing goes I might send that to them. But I am capable of building the engine. I just wanted to know if it would be a good idea to check the rod bearings and main bearing clearances</TD></TR></TABLE>
i wouldn't hurt you, to double check bearing clearances

 

Blind leading the Blind...

 

why don't you share some info, if you think we are all blind. i'm only speaking from my own experience, and none other!

 

i will mention, that ive seen a 11.5:1 comp b20 bottom end STOCK SLEEVES rods and pistons survive over 100 dyno runs to 8600rpm


i wouldnt believe it if i didnt see it becsue i was skeptical of the strength of the stock sleeve, but now i think ITS ALL IN THE TUNE

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smokey2.0 &raquo;</TD></TR><TR><TD CLASS="quote">why don't you share some info, if you think we are all blind. i'm only speaking from my own experience, and none other! </TD></TR></TABLE>

I didn't say all of you...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by johnzm &raquo;</TD></TR><TR><TD CLASS="quote">ITS ALL IN THE TUNE
</TD></TR></TABLE>

Detonation kills parts...especially over time. 60% of you run your cars with **** *** tunes and blow them up...when the tune-up is on point...parts don't get destroyed as easily. RPM shouldn't have a profound effect on the sleeves...a motor isn't going to blow just because you rev it to 8800rpm instead of 8600rpm. Inversely, you shouldn't need to rev that high unless you plan on making big power...If yu plan on making big power you should run a bore larger than 84mm. Lastly, if yu plan on making big power...and running a bore larger than 84...sleeve it.

So basically...if you want to make power. Run a sleeved block...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">
So basically...if you want to make power. Run a sleeved block...</TD></TR></TABLE>

I feel that you can get enough power on a stock b20 bottom end, and the times will be great, but that does all depend on what chassis the car is going into.

Yes tuning is key and that already is in my mind. Why go all out on a build and then skimp on it when it comes to tuning it.

 

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

I didn't say all of you...</TD></TR></TABLE>
i figured that, after i posted my responce!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">

Detonation kills parts...especially over time. 60% of you run your cars with **** *** tunes and blow them up...when the tune-up is on point...parts don't get destroyed as easily. RPM shouldn't have a profound effect on the sleeves...a motor isn't going to blow just because you rev it to 8800rpm instead of 8600rpm. Inversely, you shouldn't need to rev that high unless you plan on making big power...If yu plan on making big power you should run a bore larger than 84mm. Lastly, if yu plan on making big power...and running a bore larger than 84...sleeve it.

So basically...if you want to make power. Run a sleeved block...</TD></TR></TABLE>very true, that's why i'll be moving up to a sleeved block. i as well as my friend did get our engines tuned, and that's how we have determined how high to rev our engines to!

 

i dunno dave, all of the wd40 blocks are like 84mm.

why cant a stock sleeve b20 make power? they were making something like 280bhp on 84mm bore????