B16 bottom end build.

[theB16tegguy]

I was thinking that I would stroke it but seing as the cheapest kit i could find was 1700$ I'm kinda rethinking this. what is the max bore I can go with on a stock block. What rod/piston combo should I use. I'm open for many ideas. I'm not in a hurry because this is a project but i would like to at least get a starting point.Thanks

 

[MikeBergy]

Originally posted by theB16tegguy@Jul 27 2004, 09:23 PM
I was thinking that I would stroke it but seing as the cheapest kit i could find was 1700$ I'm kinda rethinking this. what is the max bore I can go with on a stock block. What rod/piston combo should I use. I'm open for many ideas. I'm not in a hurry because this is a project but i would like to at least get a starting point.Thanks

[post=369118]Quoted post[/post]​

On a stock unsleeved block, I wouldn't go over 82mm without sleeving it. If it is just a spare block, bore it to 81.5mm and buy some high compression pistons and some cams and tuning. If you wanna go big, sleeve it, and bore to ~85mm, you'll get some good numbers with that.

 

[theB16tegguy]

ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct? and if I buy a set of CTR pistons will the piston to valve clearence be ok to say 9k rpm's

 

[JDMilan]

blah, sell it and buy an LS bottom and work from that.

 

[theB16tegguy]

maybe........, i'm getting it for 100$ comes with crank rods and pistons, it just seems like too good of a deal to pass up.

 

[B16]

Originally posted by theB16tegguy@Jul 28 2004, 06:40 AM
ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct?

[post=369249]Quoted post[/post]​

no

 

[theB16tegguy]

Originally posted by B16+Jul 28 2004, 11:32 AM-->

theB16tegguy

@Jul 28 2004, 06:40 AM
ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct?

[post=369249]Quoted post[/post]​

no

[post=369291]Quoted post[/post]​

mind telling me why instead of being as bleak as possible?

 

[beerbongskickass]

You want to stay N/A or have you thought about a turbo? Why don't you just boost it and not worry about building the bottom end. You could probably get a reliable 300whp with a good turbo setup. Just make sure you have good fuel management and tune it really well.

 

[theB16tegguy]

true but if I did i'd still do arebuild at the least, ex: new rings, bearings, oilpump water pump, timing belt, and head gasket. and probably shot peen the rods.

 

[B16]

Originally posted by theB16tegguy+Jul 28 2004, 12:13 PM-->

Originally posted by B16@Jul 28 2004, 11:32 AM
theB16tegguy

@Jul 28 2004, 06:40 AM
ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct?

[post=369249]Quoted post[/post]​

no

[post=369291]Quoted post[/post]​

mind telling me why instead of being as bleak as possible?

[post=369375]Quoted post[/post]​

the lift would be too great for those springs. you run into coil bind

 

[theB16tegguy]

Originally posted by B16+Jul 28 2004, 04:13 PM-->

Originally posted by theB16tegguy@Jul 28 2004, 12:13 PM

Originally posted by B16@Jul 28 2004, 11:32 AM
theB16tegguy

@Jul 28 2004, 06:40 AM
ok, I have ITR valvetrain in my B16 right now, that valvetrain can easily handle stage 2 cams, correct?

[post=369249]Quoted post[/post]​

no

[post=369291]Quoted post[/post]​

mind telling me why instead of being as bleak as possible?

[post=369375]Quoted post[/post]​

the lift would be too great for those springs. you run into coil bind

[post=369402]Quoted post[/post]​

can anyone give me a second opinion on this? I've never heard of this and as far as I know, many people run stage 2 in there ITR's ......... but if I cant then I can't, which would suck. I thought stage 2's were generally only a tad bit better then type R cams themselves? I dunno,.....

 

[jamesA]

even skunk2 recommends upgrading the valve train when using their cams. People said you don't need the valves but you need the springs/retainers and whatnot.

 

[JDMilan]

get ITR inner/outer springs for the intake side and move your b16 intake springs to the exhaust side..

 

[B16]

Originally posted by JDMilan@Jul 29 2004, 01:41 PM
get ITR inner/outer springs for the intake side and move your b16 intake springs to the exhaust side..

[post=369983]Quoted post[/post]​

for skunk2 stage2 cams? i definately wouldnt..

 

[JDMilan]

nah, not for the SS2's for ITR's...

 

[97CTR]

As B16 said you will run into coil bind with s2s2's and an ITR valvetrain. The ITR valvetrain will not support those high lift cams.

 

[posol]

Originally posted by theB16tegguy@Jul 29 2004, 04:59 PM
can anyone give me a second opinion on this?

[post=369966]Quoted post[/post]​

hi

2nd opinion granted

 

[theB16tegguy]

i'm not even going to get skunk 2 anyway, i was going to get obx stage 2, i'll give you the cam specs: Utilizes / Specs:
LIFT/DURATION: IN. 485,266 EX. 466,262

 

[B16]

you never stated which stage 2 cams, most common stage 2 cam is skunk2. next time don't be so "bleak".

.485 Inches = 12.319 Millimeters
.466 Inches = 11.836 Millimeters

so ya, i would NOT use itr valvetrain with these cams either.

 

[MikeBergy]

Screw OBX, that company is lame, I wouldn't put any of their stuff on my car if it was a critical mechanical piece.