forge twintake air intake available end Aug 09

[RedRobin]

Does the ITG intake also have an oval shaped housing for the maf like OEM?

....I don't know the definitive answer to that question but in the light of your excellent posted info about MAF tuning parameters etc, I'm fairly confident it's no longer a secret that ITG have been working closely with Revo in the development of their latest intake.

[bacillus]

which has to be a defined diameter to give accurate readings: 67mm

With aftermaket intakes this 67mm internal diameter is a best guesstimate as these intakes all come with circular cross sectional  piping whereas the oem air box has the maf sited where the cross section is not circular but ellipitical.  

[joesgti]

does anybody have the HKS part numbers? 

[KRL]

which has to be a defined diameter to give accurate readings: 67mm

With aftermaket intakes this 67mm internal diameter is a best guesstimate as these intakes all come with circular cross sectional  piping whereas the oem air box has the maf sited where the cross section is not circular but ellipitical. 

Which is why I asked if the ITG was oval shaped 

[KRL]

....I don't know the definitive answer to that question but in the light of your excellent posted info about MAF tuning parameters etc, I'm fairly confident it's no longer a secret that ITG have been working closely with Revo in the development of their latest intake.

A pertinent question to put to Revo when deciding on an intake  then would be how do they calibrate the MAF on their remaps?  Is it left at OEM (67cm diameter) or do they change it?

[RedRobin]

....I don't know the definitive answer to that question but in the light of your excellent posted info about MAF tuning parameters etc, I'm fairly confident it's no longer a secret that ITG have been working closely with Revo in the development of their latest intake.

A pertinent question to put to Revo when deciding on an intake  then would be how do they calibrate the MAF on their remaps?  Is it left at OEM (67cm diameter) or do they change it?

....Very pertinent indeed!

And furthermore, how do the other tuners calibrate the MAF on their remaps.

[KRL]

I know that APR use the standard OEM calibration for the MAF 

[SteveP]

I know that APR use the standard OEM calibration for the MAF 

TBH I can't see any tuner doing anything different, but I have asked the question of Revo 

[KRL]

Good man Steve, will be interested to hear the answer.

[bacillus]

I know that APR use the standard OEM calibration for the MAF 

True but for completeness, their stage 3 BT kit uses an APR bespoke calibration.

[Dubtek]

I do! And deal directly with HKS Europe. I may also have a 2nd hand one for sale in the next few weeks too...

does anybody have the HKS part numbers? 

[revo carl]

Hi Steve;

Thanks for the mail; I’ll keep it short and straight to the point as i've got work coming out of me ears!

Scaling the maf to a larger size is a pointless task and would require tuning to suit, the stock maf housing is perfectly suitable for almost any given application unless you're going for a massive turbo setup (GT35+) and in which case you may as well run without a maf..

Hope this helps guys!

[RobsCupra]

I do! And deal directly with HKS Europe. I may also have a 2nd hand one for sale in the next few weeks too...

does anybody have the HKS part numbers? 

For the K04?

[Dubtek]

It doesnt specify either way, I'll find out.

[warren_cox]

which has to be a defined diameter to give accurate readings: 67mm

With aftermaket intakes this 67mm internal diameter is a best guesstimate as these intakes all come with circular cross sectional  piping whereas the oem air box has the maf sited where the cross section is not circular but ellipitical. 

Which is why I asked if the ITG was oval shaped 

No, as far as I am aware its circular tubing, but the diameter of the pipework chosen was based around the consideration of MAF requirement and not around restriction of pipework. I would imagine a calculation has been done to evaluate the internal area of the oval pipework, and then this has been replicated. I can speak to Andy Jackson at some point to ask the question, but the reason for the late reply is I'm currently overseas on annual leave, so access to t'internet for the next couple of weeks will be sporadic.