How about 4.25 or 4.50 Intake

[RE-ACTIONENGSPEED3]

I suggest that it has come the time for biger intakes than the 4 inch .Our platform is very fast growing,the cars make hi hp powers and they are more and more...

So HTP what is your opinion???

[Easter Bunny]

Are you coming close to maxing the maf voltage on a four inch?

[jdmage_mx5]

I thought idle stability started going downhill at about the 4" MAF size.

[RE-ACTIONENGSPEED3]

Originally Posted by Easter Bunny Are you coming close to maxing the maf voltage on a four inch?

My car no . But the 700whp guys stated that they are at 4.7v on that hp.So i think it is not that far away....

Originally Posted by jdmage_mx5 I thought idle stability started going downhill at about the 4" MAF size.

I supose that we will have to raise idle...

[Realgib3]

Idle is FINE on a 4". Period.
And yes I was hitting 4.8v on a custom 4" which is as far as I woukd go before upgrading to 4.5"

[Matt@HTP]

Yes are working on something. I'm not gonna say exactly what it is as we have more bench testing to do. We will most likely be having SP63 beat it up before we even release more info. I do not have a time frame.

A 4.5" intake is completely unnecessary.

[Realgib3]

Originally Posted by Matt@HTP Yes are working on something. I'm not gonna say exactly what it is as we have more bench testing to do. We will most likely be having SP63 beat it up before we even release more info. I do not have a time frame. A 4.5" intake is completely unnecessary.

I would only saynits unnecessary if you guys are working on a speed density conversion. Otherwise I will need the 4.5" to be able to read the airflow I'm shooting for.

[MSP6]

I thought @Scribbles; had just discovered the new 4 inch....oops..wrong thread..

proceed @Matt@HTP;

[Matt@HTP]

"This is going to affect idle and cruise conditions quite a bit. Only really applicable for very very high hp race type of builds." - Lex

I completely agree @lex. We are chasing that 1000hp mark this year and "because racecar" truly applies to this.

[LumberJack]

I would definitely say it's probably needed at this moment. I pegged maf cut last year a few times in the colder air and the turbo had some left in it....


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[RE-ACTIONENGSPEED3]

Originally Posted by LumberJack I would definitely say it's probably needed at this moment. I pegged maf cut last year a few times in the colder air and the turbo had some left in it.... Sent from my iPhone using Tapatalk

How much hp did you estimate that you are at the maf cut time ??

Originally Posted by Matt@HTP "This is going to affect idle and cruise conditions quite a bit. Only really applicable for very very high hp race type of builds." - Lex I completely agree @lex. We are chasing that 1000hp mark this year and "because racecar" truly applies to this.

I estimate that we are going to have a lot of racecars this year.So i guess it is time for a biger intake than 4 inch......

[Easter Bunny]

Originally Posted by LumberJack I would definitely say it's probably needed at this moment. I pegged maf cut last year a few times in the colder air and the turbo had some left in it.... Sent from my iPhone using Tapatalk

Good thing I was already sitting on the shitter cause I just came.

[LumberJack]

Originally Posted by RE-ACTIONENGSPEED3 How much hp did you estimate that you are at the maf cut time ?? I estimate that we are going to have a lot of racecars this year.So i guess it is time for a biger intake than 4 inch......

I really don't know honestly man. For reference when I made 800 on the dyno I was at 4.79-4.80 so substantially more than 800 lol.

Weather conditions and all relative factors were a big part of it don't get me wrong. It wasn't a regular thing for me to hit maf cut.

We will find out what the turbo does this year when I hit the rollers and retune with the setup and see if maf cut hits on the dyno.


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[RE-ACTIONENGSPEED3]

I saw on fb that you have make a bigger intake for the sp63 , so any info for us ,inner diameter? Is it for stock location like the other intakes you sell?etc..