Greddy ITB Testing - Starts Today @ Delicious Tuning

[Lantanafrs2]

So out of the box, the itbs didn't give overwhelming results?

[Dr. BRZ]

Without tuning, out of the box. No

[StraightOuttaCanadaEh]

I think it's been long enough since the last time I posted this but if you want to see ITBs with individual trumpets and a MoTec to manage them, look at @zerobreau on instagram. He's had pretty good gains and the car sounds phenomenal.

https://www.instagram.com/p/BkiMud_D...ns_share_sheet

[Lantanafrs2]

Originally Posted by Dr. BRZ

Without tuning, out of the box. No

Of course they require tuning. I'm asking about the runner/plenum configuration.

[steve99]

Originally Posted by CSG Mike

Creative solutions are needed to tune trumpets, when both your MAP and MAF sensor are gone

Interesting will need to be creative if no maf or map sensor used. What are they going to use for metering Air into engine with no pressure or flow data.


http://greddy.com/products/Special+V...rtnum=11910200




The info here suggests its compatable with stock intake so appears you could use maf, then second option was ecutek speed density which wouod use map pressure and temp.




So whats the advantage of using neither maf or map. ?

[Irace86.2.0]

Originally Posted by CSG Mike

Creative solutions are needed to tune trumpets, when both your MAP and MAF sensor are gone

This kit doesn’t have open trumpets to air, so why couldn’t a MAF and/or MAP be used? Even if it was open to air, isn’t it the norm to tap into each TB manifold and run lines to a distribution block that connects to a MAP sensor?

Originally Posted by StraightOuttaCanadaEh

I think it's been long enough since the last time I posted this but if you want to see ITBs with individual trumpets and a MoTec to manage them, look at @zerobreau on instagram. He's had pretty good gains and the car sounds phenomenal.

https://www.instagram.com/p/BkiMud_D...ns_share_sheet

It is cool, but Motec plus ITB hurts the wallet for those gains. I feel like if he went Motec then maybe more plans are in the works, maybe to do a built high compression and stroked motor running E85. 300whp all motor would be pretty sweet to see.

[AxisPower]

Originally Posted by Irace86.2.0

This kit doesn’t have open trumpets to air, so why couldn’t a MAF and/or MAP be used? Even if it was open to air, isn’t it the norm to tap into each TB manifold and run lines to a distribution block that connects to a MAP sensor?



It is cool, but Motec plus ITB hurts the wallet for those gains. I feel like if he went Motec then maybe more plans are in the works, maybe to do a built high compression and stroked motor running E85. 300whp all motor would be pretty sweet to see.

Can't use just a map sensor for itbs because the signal isn't very good at partial throttle. Most standalones will use a combination of map and throttle position (alpha n).

[StraightOuttaCanadaEh]

Originally Posted by Irace86.2.0

It is cool, but Motec plus ITB hurts the wallet for those gains. I feel like if he went Motec then maybe more plans are in the works, maybe to do a built high compression and stroked motor running E85. 300whp all motor would be pretty sweet to see.

Nah we don't have E85 in Canada. Seeing as it's his track car and he competes, he might be able to get a hold of it but I highly doubt it. He did do his baseline on a different dyno, but the new one reads lower than the old one, so his gains are at around 60 whp, which - even if 30 of those could be attributed to his catless header - is mighty impressive

[churchx]

Impressive especially because with "classic bolt-ons" there is somewhat diminishing returns limit of ~ +40whp, that is hard to get pass. If ITBs will further enable getting more NA gains, even with bad price/performancy, they still might be desirable product imho, even if their sound or throttle response is not primary wish of potential customers. Expensive? Yes. But then again, NA tuning in general is expensive, nothing suprising. If they will deliver that is.

[Lantanafrs2]

No way you get 20 horsepower out of these things. Especially with stock redline.

[RayRay88]

I doubt it's 20 but probably close to 10whp/10wtq. He's hitting nearly 180ft/lbs... all this on shitty canadian 91. I imagine 93 would be close to 15/15 over a decent header.



All speculation till we have a more thorough analysis.

[Dr. BRZ]

20/20 would be on e85. Best fuel all around.

[Lantanafrs2]

E85 gives 20 on it's own.

[Irace86.2.0]

Originally Posted by StraightOuttaCanadaEh

Nah we don't have E85 in Canada. Seeing as it's his track car and he competes, he might be able to get a hold of it but I highly doubt it. He did do his baseline on a different dyno, but the new one reads lower than the old one, so his gains are at around 60 whp, which - even if 30 of those could be attributed to his catless header - is mighty impressive

60whp gains? Dyno before n after?