So basically i'm going to make a manifold for my b16a using a pair of weber DCOE manifolds.

i figured i'd ask what you guys thought i should do about the computer. basically i know that i need it. but can i run the car without the TPS or MAP sensor? i'm obviously not talking about fuel here, i'm talking ignition/vtec.

i have previous experience with DCOEs in the past and this would tech be my third weber powered vehicle i've owned. just curious.

also a side note. i have a chipped computer that has a 4400rpm vtec crossover. i dont know if that changes it or not, but it does engage vtec even if its not under load. so maybe without the tps i will still engage vtec.

 

You can allways just wire a MSD box straight to your dist. for ignition and a MSD rpm box for VTEC and get rid of your ECU. Just remember you need a 5 PSI fuel pump.

 

right now i have the 6al. i'm guessing i would have to run a digital msd box to do this? and the msd box doesnt control advance or retard. thats stuff is semi important right? i'm guessing with the tps that it wouldn't work anyway.

 

MSD has many products now, I am sure one is timing adjustable. Call their tech line, they have allways been helpful.

 

are the manifolds for the carbs custom or does someone actually make them for a b or d series. its very interesting to say the least. seems like once you get past the inital cost of the carbs,manifold,msd it would be easier and cheaper to tune.

i know honda motors have to be tuned very well for high hp #'s. how easy or difficult is it to tune a motor with carbs so it doesnt detonate and blow up,since you dont have fuel or ignition maps?

 

TWM makes (used to make) a manifold for d-series and one for non-vtec b18. I have the TWM one on my d16. Tuning Webers isn't too difficult for high rpm power--as long as you have a good selection of emulsion tubes, main jets, air correctors and pump jets. HOwever, tuning for part throttle low rpm driveability can be VERY challenging!! Especially since most guys are trying to use big chokes and carbs--so its hard to get smooth part throttle performance. Also, a very popular Weber to use is the DCOE 45 152 (Spanish). This carb has only 3 progression hole drillings, and the first one is not above the throttle plate where it should be--it leads to a major hole in the fuel curve right about 1000-2000 rpm, under light throttle-(I don't know why Weber did this--maybe for part throttle emissions?) -unless you do a mechanical fix which entails drilling a fourth progression hole directly above the throttle plate edge when it is sitting around a 900-1000 rpm idle (where DCOEs were designed to idle at)

Also, the amount of accurate tuning info isn't that great. Even alot of the available "tuning" books have alot of their info wrong. If you are just going for alot of power though--you could get reasonable results in a few days of tuning. You can get massive amounts of power and good mid-range torque with properly sized and jetted carbs.

https://honda-tech.com/zero...age=1

I want to try again with a better header. Should see 170 whp.

 

right now the b16a only put down 145 whp with my current setup. i believe that was largly in part that i had an 11:1AR which is way to rich for NA. thats fuel injected btw.
my poor b16 has easily 150k miles and been autocrossed hard for the last decade! so the low hp doesnt surprise me. i'm just impressed that the motor still holds up.
basically my mods at this point are as follows.

msd 6al, 8mm wires, blaster coil, power cap.
denso plugs
Extude honed JDM b16a intake manifold
dc sports 4-2-1 ceramic header
xs power pulleys
venom cam gears (retard 2degrees intake and exhaust)
ctr cams
password intake
hondata intake manifold gasket
b&m fpr set to 50psi at idle (iknow its way rich)
4400vtec crossover
holley 190lph fuel pump.

its only got the man tune on it...tehehehe. feels good for autocross!

i want to try out the webers that i have on my other motor (a18a1) for ***** and giggles.
the chokes have been bored out to 43mm
currently my jet sizes are...
idle jets are 60f9
main jet is 155
air corrector 185
e tube is f16.
i'm pretty sure that thats not going to be able to run the b16 very well, to be honest, i'm not sure that will even run the a18 that well! ha

the jets i wanted to run for my a18 (1829cc)
are
idle 50f9
main 170
air 220
e tube f16,f2

not sure what to start the b16 on though...
i was thinking
using my 43mm chokes (though a little big for my limited mods)
idle 40f15
main 190
air 220
e tube f15 or f9

what do you guys think?

 

Wit 42 chokes in the SPO48 webers, I think we were 200/165 eithor F16 or F11

 

i'd say it would have to be the f16 over the f11, the f11 are way too small!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondalude86 &raquo;</TD></TR><TR><TD CLASS="quote">So basically i'm going to make a manifold for my b16a using a pair of weber DCOE manifolds.

i figured i'd ask what you guys thought i should do about the computer. basically i know that i need it. but can i run the car without the TPS or MAP sensor? i'm obviously not talking about fuel here, i'm talking ignition/vtec.

i have previous experience with DCOEs in the past and this would tech be my third weber powered vehicle i've owned. just curious.

also a side note. i have a chipped computer that has a 4400rpm vtec crossover. i dont know if that changes it or not, but it does engage vtec even if its not under load. so maybe without the tps i will still engage vtec.</TD></TR></TABLE>

pierce manifold sells the flanges to build a custom manifold

 

sorry for digging this one up from the dead guys, but I figured I'd add to the last comment.

...I just got off the phone w/ PierceManifolds and the Aluminum flanges are $32.98 each, and are more suited for use on the 45's due to their bore diameter. The flanges are already tapped for 5/16 (18x24) mounting studs.

I have a never installed B18/16 TWM manifold for DCOE's that I'm not going to end up using if someone's interested in it.


Modified by markmdz89hatch at 12:02 PM 5/29/2008

 

Hey mate. I just read a rather old post of yours about carbs and B16's. You mentioned you still had a TWM manifold for DCOE's. There a chance you might still have that?

 

Jenvey has one avail.

 

You're the man.