Kamin

Ok heres my situation. I may be comming into about 1000$ relativley soon and i was thinking hey, i could buy a b20 with this money and get TORQUE!
Just this question, If i buy the b20 longblock can i use the stock longblock (pistons, crank, etc) and just do the stuff needed for the buildup? (like on c-speedracing)
I dont have the money to fully build the block before i mate it with the head i will be taking it out eventually and fully building it. so im just curious. im confused because on the c-speedbuild up they tell you how to install the pistons, crank etc. is this necessary? or can you just bore the dowel pins on the head and run the oil line?
Thanks everyone

Finest

I don't see why not? The only thing to watch out for is on the piston valve reliefs. With a VTEC head, it can get pretty close to the valves.

Jeff C

I am assuming that they are doing a complete buildup. You can get by for now with just doing the dowel pins and oil lines. As far as the valve clearences, you will be alright as long as you do not get too crazy with adjusting the timing. I am sure you have seen this site http://www.crvtec.com/, but they talk about this valve clearence issue and I think they give the different clearences at different degrees of timing adjustment.

tinkerbell

yep.

bolt the head on, no build up at all, you got 400cc extra for all your torques desire

im getting a JDM B20B from a 96 CRV to mate with my spare B16A head.

gunna run the oil line and do the dowel pins etc...

BUT <u>do i have to do anything to the chamber (eg deshroud) to make it work BEST???</u>

t..

eagle2

im thinking about doing a b20/vtec and i can come across a b20 long block,and a b16a head what else would i need 2 compelete the swap in a eg besides the tranny and ecu thanx and how much power should i get from this swap

Kamin

thats what i thought but c-speed confused me
Excellent
i wont go crazy on the timing i remember reading somthing about that
Thanks!
Joe
Anyone got some dyno numbers for a non built block bTW? (just a b20 with b16 head)

Kamin

ttt n e one?

ALF

I remember seeing around 180. Good enough for me.

Kamin

**** thats way more than enough for now (untill i can afford to build the SOB for boost)
1000$ well invested
muhaHWhahahaha

Kamin

yea yea call me a post ***** but i have a question i just thought of
stock b20 bottom end, stock head gasket, b16 head.
what compression ratio?
tia

S9 MECHA KARUMA

I'm buildin one w stock pistons (fly cut), stock rods, b16 head (milled .0030), and b20 head gasket. Compression is gonna be around 10:1

Jeff C

Look at the "Compression Calculator" at c-speed racing's site. You can play around with different components and it will figure the different compression ratio possibilities. The setup you mentioned with b20z block: 10.2, with usdm b20b block: 9.3 http://www.c-speedracing.com/howto/c.../compcalc.html

vaporz53

Now Im not sure if this is for the forced induction forum but, I am replacing my b18 bottom end with just a b20 bottom end..Just tapping the oil lines,bolting on the z10 block gurdle,using the ARP head studs and bolting my vtec head on..The only difference is Im putting my greddy turbo kit back on and hoping to run 10psi...Does anyone forsee any problems with this??The things that are worrying me are the skimpy 310cc injectors that come with greddy turbo kit..
thanks in advance
Jude Olwell

Suprdave

Ok...Here's the problems yer gonna run into...

First off, 310cc is reccommended for a N\A B20 making any kidna horsepower...
10PSI on the Greddy kit, yer gonna want atleast DSM 450cc Injectors to be safe.

Also, the z10 Girdle...It's recommended to Align-Bore the motor after installing a Girdle. The tolerances are not always within spec, and you wouldnt wanna ruin a perfectly good motor because of that.

I'm currently building a B20\VTEC with all the goodies...and the z10 Girdle is on my List...WITH ALL THE CORRECT MACHINING.

Suprdave

Kamin

will stock b16 injectors hold up to a slightly modded b20/vtec? (i/h/e, manifold, etc. nothing internal)

escapist13

I have the setup you guys are talking about: completely stock B20z with completely stock B16A3 head. The torque increase was VERY nice, the most fun part. My Blitz power meter says I have ~173 to the wheels, which is probably pretty close. I have I/H, stock exhaust and stock injectors, but I will soon be moving up to a 10 PSI intercooled custom supercharger.

tinkerbell

KAMiN - im budgeting for 310cc injectors...

we dont want no lean outs do we?

with the major increase in capacity ie 400cc to 500cc per cylinder the stockers will be maxing out pretty quick i think.

(im prolly going to use H22A injectors (92-96))

t..

Kamin

bahh but that requires money that i dont have
ill probably spring for some 300-310's

MaddMatt

Hi guys. I'm totally new to honda hybrids. Been doing auto-x and track schools for years in a Sentra SE-R. After seeing the Honda Challenge race last weekend, I must build a hybrid to run in that series.

One question right now: Why use a b16 head? Will the b18 head from a GS-R work or is there some problem?

I'll have many more questions later. Thanks.

tinkerbell

answer = B16A head is what we have, if you have B18C then use it.

(no problems im aware of - except maybe the height difference)

what is the time over in the US?

t...

Kamin

its 4:40 here
and if you can use a b16 head DO IT!
it flows better than the GSR. http://www.crvtec.com http://www.c-speedracing.com/howto/b20vtec/b20vtec.html
good starting points
read EVERYTHING on the crvtec page
good information.

Jeff C

KAMiN-You are using 2nd gen b16 stuff which is obd1, correct? I am using 94 gsr, also obd1 so you could use the same ecu. From what I understand the b16 injectors are "peak and hold" while the gsr injectors are "saturated". They both have the same flow rate, but I do not know what the exact difference between these two phrases means. Maybe for some reason the saturated would be better. I may be way off, this was just a thought.

escapist13-What do you mean custom supercharger? What car are you going to be fitting this into, not an ef by chance?

tinkerbell

here is some thing i got from Hondata...

Hondas using peak and hold injectors
Honda VTEC JDM B16A 240cc
Honda Accord 2.2l VTEC and non VTEC 240cc/min, 92-95
Honda Prelude 2.2 DOHC VTEC- 92-96 310 or 340cc/min,
Honda Prelude 2.2 DOHC VTEC- 97+ 280cc/min,
Hondas using saturated injectors
Honda Civic EX 240cc/min,
Honda Civic Si coupe 240cc/min,
Honda CRX Del sol (B16A2 engine) 240cc/min,
Integra GSR B18b, B18C and Type R engines 240cc/min,

not sure on 'which is better',

peak and hold need an external resitor pack.

the difference may be in cost to manufacture???

t..

(it is 10.15am here)



[Modified by tinkerbell, 11:16 AM 4/24/2002]

Jeff C

thanks, good info

escapist13

Jeff C: I will be a beta tester for a prototype intercooled supercharging system. It will be based off the M63 blower, but I'm not sure how much more I can say before it's finished. It's going into my Sol.