Independant Throttle Bodies on Nexia DOHC

Post by **PrecisionBoost** » Sun Feb 22, 2009 1:12 am

benzino wrote:ITB's with webers

??? I don't get the joke.

aZkM · Post by **aZkM** » Sun Feb 22, 2009 3:36 am

@precissionboost

Thankyou sir for much detailed answer. Your so helpful to me. I'll let you know (and bothering u again

) after getting the market survey about the weber carbs and machining work. What do you suggest about turbo?

@nexia

waiting for your reply sir.

Thanks and regards.

Post by **PrecisionBoost** » Sun Feb 22, 2009 6:07 am

Turbo will cost a great deal in parts.... and the ITB's and carburetors would not work with a turbo very well.

140hp would be very fun and fast and your stock transmission should be able to handle it.

If you go turbo then there are many many parts to buy.

Turbocharger
Reinforced silicone connectors
intercooler
larger injectors
aftermarket electronics
downpipe
wide band O2
manifold
MLS head gasket
check valve for MAP sensor

and the list goes on.

As far as the weber that was just a suggestion off the top of my head since there have been lots of guys who have made custom ITB's with Weber carbs..... but I don't think you will find a complete setup like you would for other applications.

It would be much easier to find a complete Mikuni ITB/carburetor system from a sport bike and adapt it for use on your engine.

http://www.motorcyclecarbs.com/Mikuni_R ... 3C1430.cfm

Kawasaki, Yamaha, Suzuki bikes .

You would have to re-jet the carburetors to work with your larger engine.... but then again those sport bike engines push a lot of power in the higher RPM.

aZkM · Post by **aZkM** » Sun Feb 22, 2009 6:13 am

@precisionboost

Sir what about the stock injector rail. Will they be in their original place? And do I have to install another fuel pump for the fuel connection for carbs?

Thanks and regards.

aZkM · Post by **aZkM** » Sun Feb 22, 2009 6:24 am

@precisioboost

Also another thing. My engine has manual distribution timing (i.e., timing could be advance or retarded by hand just loosening the screw). So according to my knowledge the only object of adding an after market ecu is adding extra fuel. Which could be done by forcing the engine to run in emergency mode by removing TPS (for running rich). Although it would now guzzle fuel.

Just my thought whats ur expert opinion?

Thanks and regards.

My engine is similar to this

Post by **PrecisionBoost** » Sun Feb 22, 2009 7:06 am

Personally I don't think removing the TPS will just simply make the car run poorly and it's not going to add that much more fuel at peak power.

For simple adjustment you would be better off fooling around with the intake temperature sensor to make the engine think it is getting cold dense air instead of warm/hot air.

The injector rail would be disconnected (with the injectors) if you went to carburetors.

Carburetors would require lower fuel pressure in most cases so you stock pump would be fine.

aZkM · Post by **aZkM** » Mon Feb 23, 2009 4:59 am

Sir I'm getting a supercharger setup (earlier used for a carb engine) quiet cheap which includes following items.

1. Supercharger (amr300 curent @4 psi with stock pulley)
2. fuel cutoff solenoid
3. flench and fitting
4. piping high psi supported
5. intercooler (pajero)
6. fitting for supercharger
7. blow off valve (original)
8. pipe fittings
9. boost control valve (adjustable)

What other things would be required for getting the woo supercharged.

And what would you recommend i.e., turbo or supercharge also i'm gathering info for ITB's setup you (@precisionboost) suggested.

Thanks and regards.

benzino · Post by **benzino** » Tue Feb 24, 2009 3:14 am

PrecisionBoost wrote:
benzino wrote:ITB's with webers
??? I don't get the joke.

T'wasn't a joke...
I was looking for a *drooling* emoticon but there wasn't one

That is probably my favourite set up... especially on C10 Skylines

Post by **PrecisionBoost** » Tue Feb 24, 2009 3:38 am

As far a supercharger..... with 4psi you should be ok... anything more than that and you might bust the MAP sensor.

Not sure what a "fuel cutoff solinoid" is for.

Over all it looks like a decent list... might want to consider water methanol injection.

You can inject water/methanol with a windshield washer pump..... since your typical low temperature windshield washer fluid is methanol/water.

I would suggest feeding it through a nitrous jet into your intake

It helps cool the air and helps reduce the chance of detonation

aZkM · Post by **aZkM** » Tue Feb 24, 2009 2:51 pm

Thanks a lot sir for your kind and helpful replies. Will get back to you if I have any thing else to ask.

Again thanking you alot for your precious time.

Thanks and regards.