weber on JDM B20a

[mykwikcoupe]

On a 89 LX sedan, Im installing a JDM B20a from B20aturbo and had a few questions. With the JDM B20a and the A20a1 only having 1 O2 bung Im good there right or should I swap it out for the 88-91 lude header anyway?

Im going to use the 32/36 weber as the car is just a driver and its mostly highway miles at that. What kind of gas mileage did everyone get after the weber conversion?

To install the weber on the auto tranny I need to flatten out the throttle cable linkage plate and put that new hole in it and that will fix the WOT problem everyone talks about?

The weber only need a small amount of fule pressure should I install a regulator from the stock fuel pump to the weber for better management?

Ill go woth a MSD ignition but other than that this car is not a performance factory so when asnswering question try to relate to strret usable power as a daily driver only.

thanks Mike

[mykwikcoupe]

also MSD sells a distributor for the 86-89 teg but for the TEC distributor. Does it matter when I swap the distributor out if its the TEC style or not?

[Civvy]

Are u going from F.I. to Carbs? if so the TEC dizzy,igniter and coil fit from the carbed models. with modification to the mounting of the dizzy!

[diegoaccord]

Inject that shit. You want to take a motor that has PGM-FI and make it carb'd.

Stock HP will probably go from 160 to like 130, if that.

If it isn't:

1: stock with a carb

2: a V8 of less than 428 ci

Then a carb is your enemy.

[buzzbomber88lx]

carb is the way to go man....especially dual dcoe webbers. almost all 4cyl circle trackers that use ford's 2.3 and toyotas 22r swap to carb and I read in muscle mustangs and fast fords the other day they did a test on edelbrocks torker 2 intake(carb) vs holley's systemax intake(efi) on a 5.0 and the carb won by like 5hp......carb is the way to go

[ET2]

Inject that shit. You want to take a motor that has PGM-FI and make it carb'd.

Stock HP will probably go from 160 to like 130, if that.

If it isn't:

1: stock with a carb

2: a V8 of less than 428 ci

Then a carb is your enemy.

i would have to disagree, on a n/a engine dual dcoe's rule the only setup that would be an improvement over them is ITB's with a programable ecu, if you go with dcoe's get the 45's

[Civvy]

Yep definatly carbs! butterfly per cyl v's 1 butterfly = come on!!?

ure right with the ITB's + ECU but carbs is half the cost!

plus extra computers = more weight!!

[2ndgenludedude1986]

yup go with dcoes on that bad boy. i think on here somewhere there was a guy that siad he could get a few carbed b20a's they had the dual keihns like on my prelude.

[L3G10N]

i'm putting dual DCOM weber on my b20a.
You'll need the 86-87 teg distributor to works fine by the way.

Dual weber can be better than EFI

[mykwikcoupe]

thanks for all the help but the b20a is just to just to replace the mildly warn a20a I have now. I want a little more power but but i\since its a daily driver Im more concerned with gas mileage and drivablility. This car will NEVER see a race. Its the wifes and with the baby Ill make sure it never races. I think ill just get the weber 32/36 and go with a little larger exhaust

[Civvy]

i'm putting dual DCOM weber on my b20a.
You'll need the 86-87 teg distributor to works fine by the way.

Dual weber can be better than EFI

I dont get it!? I'm converting my b20 to webbers and found the teg dizzy to be too fat to go in the hole! yea, same drive - but too fat!
I got it from a carbed 86-87 teg at the breakers and it also dosen' mount directly.?
I managed to adapt a prelude a18 dizzy to fit by making the cap fit 180 degrees the other way so it would clear the thermostat and fastening it with a big washer! it is running rough but i havent got my webbers on yet and cant determine it being the a20 carb or the a20 dizzy??
:dunno:

[Gregg86DX]

I dont get it!? I'm converting my b20 to webbers and found the teg dizzy to be too fat to go in the hole! yea, same drive - but too fat!
I got it from a carbed 86-87 teg at the breakers and it also dosen' mount directly.?
I managed to adapt a prelude a18 dizzy to fit by making the cap fit 180 degrees the other way so it would clear the thermostat and fastening it with a big washer! it is running rough but i havent got my webbers on yet and cant determine it being the a20 carb or the a20 dizzy??
:dunno:

I believe the Integra distributor that people use on the B20A is off an FI, D16 motor. Maybe the carbed Integra uses a different distributor.

Just a thought,
Gregg

[Civvy]

hmm, i tried the original b20 dizzy (obviously that fits) but because it was for a F.I i couldn't get a spark from it!

....surely this would be the same with any F.I. dizzy?

[carotman]

i'm putting dual DCOM weber on my b20a.
You'll need the 86-87 teg distributor to works fine by the way.

Dual weber can be better than EFI

In your dreams. You'll tell this to my tailpipe :rolleyes:


BTW, the EFI 86-87 Integra distributor works fine and mounts the same as any B20A distributor...

[Gregg86DX]

hmm, i tried the original b20 dizzy (obviously that fits) but because it was for a F.I i couldn't get a spark from it!

....surely this would be the same with any F.I. dizzy?

Actually, the older FI distributors use vacuum advance (like the stock A20) and the newer ones use electronic (like the B20A). The FI Integra distributor should work just like the stock A20 distributor and will work with the stock ECU.

[Civvy]

Actually, the older FI distributors use vacuum advance (like the stock A20) and the newer ones use electronic (like the B20A). The FI Integra distributor should work just like the stock A20 distributor and will work with the stock ECU.

Mine is originaly carbed, meaning no ecu! If the A20 dizzy is the same as the F.I. teg dizzy. I'm o.k. then running my A20 dizzy?

Think I just need to get some real carbs a.s.a.p!

Need to get a manifold made for 45's!

[carotman]

Since you live in the UK, the B20A distributor is arleady controlled by a vacuum advance diaphragm. This distributor is in fact the same as a 86-87 EFI integra. No need to get any other distributor.

[Civvy]

Big Thanx!! :bow:

[thegreatdane]

Civvy, is your B20 a JDM B20A or a EDM B20A2?

[Civvy]

jdm b20a1 got 4 now! :rockon:

[thegreatdane]

Were they imported from Japan or where did you get them? There are 2 different 3g B20. The JDM with 160hp and the european with 137hp.

[Civvy]

The U.K. spec is 137bhp B20a 1's. We have restricted engines over here!
The only difference's are Cams and a little higher CR which we would change to a better spec anyways!

We go to Europe on holiday and get a faster ride on their unrestricted mopeds!

A guy i know has a CRX del sol (non v-tec) and can't get over 112mph because his ECU has a built in speed restrictor!!

Screw that!! bin the Robots and sling a pair of Webers on! :pc:

[thegreatdane]

Do you know for a fact that those are different between the JDM and euro engine? Also the ignition and ECU is different between JDM and euro. Are you from UK or Australia or something?

By the way in all europe the B20A(1/2/8) has 137hp.

[Civvy]

No i dont! proberbly is a EDM then?
I'm in England!

[thegreatdane]

If there's a digit after B20A in the engine code then it's an EDM engine. The digit can be 1, 2 or 8. (maybe 4 too, not sure about that one.)