can this fit into a isuzu dmax 4jj1 tc engine and which adapter to use
thanks
dennis

Dennis,

this BOV can fit your engine but you will need to weld on the provided adapter to your existing pipe work as we do not have an adapter kit to suit your specific engine.

hi mate can you tell me if these products are made to suit xr6 turbos????? i am new to turbo scene and now lokking at purchasing some upgrades

Webba,

The XR6 turbo responds very well to our BOV upgrade. An easy option is to upgrade the standard bypass valve with our Kompact series BOV’s which are a direct replacement. If you were looking at more power and boost, then using our larger 38mm BOV’s will be better.

Hi there, I’m looking to get one of these for a Nissan RB30E +T conversion, I am going to be running a Nistune ECU which means I can only run an AFM (no MAP sensor). Where would be the best positions for the AFM and the BOV so that the idle doesn’t drop or stall or over-fuel while the throttle is closed?

cheers
sam

Sam,

There aren’t any positions that will fix or reduce the overfueling caused by a vent to atmosphere BOV. Tuning the response of the valve by adjusting the tension on the spring will reduce overfueling and prevent idle drop and stall.

Ok, so a plumb-back type bov would be better? I somewhere online (might have been here) that if you have the AFM + BOV overfuelling and idle problems, but still want the noise of a BOV, you can use a 50-50 (half plumb-back, half vented to atmosphere), instead of a full plumb-back, is that correct?

If so, could you explain how plumbing it back would prevent it from idle drop/stall and overfueling? Because to me, once the AFM has measured an amount of air then thats it > it will calculate how much fuel to inject based on that measurement, not the amount of air that comes thru afterwards.

Would it help a lot if I put the AFM right before the throttle body (so the BOV will be in the piping before the AFM)?

thanks heaps for your help
Sam

Sam,

The AFM is before the BOV so the AFM detects for example 100 units of air entering the engine, and provides 100 units of fuel for this air. When a vent to atmosphere BOV goes off, it releases 50 units of air which means that only 50 units of air and 100 units of fuel enter the combustion chamber which causes overfueling. Using a dual port will reduce the amount of overfueling as only 25 units of air is vented outside the intake system.

A plumb back vents the air back inside the intake track before the turbocharger but after the AFM so that amount of air that the AFM detect entering the system is still within the system.

Putting the AFM right near the throttle body is not ideal. The AFM is a plastic device that will not handle boost pressure, hence they are all placed before the turbocharger.

There are a few options to cure your problem. Covert the BOV to plumb back or upgrade the ECU to a MAP sensor based ECU.

hae mate, wots ur price on tha wrx my99?

Tere,

You will need to contact your local Turbosmart dealer for pricing.

Hi there.

I was reading your responses to Sam with the RB30ET. I have a factory VL Turbo. I understand if you plumb the BOV back into the intake tract the ECU knows how much fuel it needs to use, but how is the timing of the fuel delivery affected?

Following your example, I assume in normal running that the MAF detects 100 units of air, and .2 or so of a second later the injectors add 100 units of fuel timed for when the air reaches the inlet tract. If I lift off the throttle and send that air back to before the turbo, then don’t get back on the throttle for another say 5 seconds, won’t that mean the injectors still add the 100 units of fuel at .2 seconds, then at 5 seconds when the air gets through again, the injectors have already fired leaving a lean out condition?

VitalStatistic63,

The ECU is programed to provide extra fuel to accelerate the engine when the throttle is opened. This is commonly refered to as “accelerator pump”.

Gday
im using 4mm vacuum hose. What size nipple is supplied and do you have 4mm nipples?..Daryl

Daryl,

The Vee Port uses a 6mm hose size. We do not have 4mm fittings.

hopefully the 4mm silicone hose wont split over time??…Daryl

i have a 2002 golf gti and looking for a louder bov i have a nuespeed is this atmosperic and will it work on my car let me know wat i should do and how much is it

Ted,

You can use our Kompact dual port to replace the standard 25mm Bosch by pass valve. It is a direct replacement

can i use this in a 99 hyndai sonata with out a turbo

Jonathan,

This product only works on turbocharged vehicles.

Hey quick question: what would be the best bov for my 1995 subaru wrx 2.0L turbo? do these motors run well with bovs? im looking for something loud but functional that will last for ages and not break down (not a plumback). Also im on a budget so the old range would probably be good, is there a direct replacment for my model? thanks turbosmart!

Bruce D,

The WRX motor runs well with BOV’s. One of our Kompact Dual ports will work well with your car, you will need to get a few bits of silicone hose to make it fit but its fairly straight forward once you locate the standard straight through bypass valve.