TurboHoses Intake Tests

mazdaspdprotege said:
thats how much they have it for on the site, how do they expect someone to pay that much ?

We were able to simplify the desgin and bring down our estimated price to about 220.00 +/-.
It will depend on how our final desgin on the heat shield.

Turbohoses R&D
 
rocketspeed said:
Do you mean spool time improved, or that spool time was negatively impacted?


Nice work with the development of all these products, BTW.

Any fitment issues with your hardpipes and the Injen or AEM CAI's?

Our hard pipes fit with the Injen, we don't know if it works with AEM.

Spool time improved beginning 3000 rpm to WOT.

Turbohoses R&D
 
kazson said:
just wondering what makes these intakes better than AEM and INJEN intakes?? just the ram air for a BOV sound?(monkey2)

Testing Intakes on a dyno isn't the "best" way to get real world results.
It gives us a base number in comparison to the stock intake.

One thing we noticed while driving is that the turbo spooling noise was quite evident due to the extra volume of air it's receiving. This will ultimately help the longevity of the turbo and power out put for those of you that increase boost pressure.

IMO, the car sounded like a lightly modded Supra Turbo.

Turbohoses R&D
 
TheJohnny said:
Duhhh, but I want to see the ones that are actually ON-CAR........

Unfortunately, we can not release photos of our proto-type until production is about to begin.

The closests photo is on our website.

The kit will include:

1. Relocation bracket for the coolant resevoir.
2. Hardpipe.
3. Custom made silicone hose.
4. AirRam and Filter (our filter has a special design which allows more air to flow in smoothly than most filters)
5. Heat Shield

Turbohoses R&D
 
OK, now that we know what it comes with, let's figure out a price on this one. Something like $200 shipped on the first group buy would be cool.
 
Turbohoses said:
Unfortunately, we can not release photos of our proto-type until production is about to begin.

The closests photo is on our website.

The kit will include:

1. Relocation bracket for the coolant resevoir.
2. Hardpipe.
3. Custom made silicone hose.
4. AirRam and Filter (our filter has a special design which allows more air to flow in smoothly than most filters)
5. Heat Shield

Turbohoses R&D
Sounds great. I may be willing to dump my AEM for that, as I'd vastly prefer a good short ram intake to the CAI, particularly for winter driving. If it helps kill the turkey noise, all the better. I'm thinking of running your hardpipes and maybe even the SMIC, so having it all prototyped together is a nice plus, as you can be sure it all works together.

How's it running? if the BPV is just blowing the pressure back through the MAF and out the filter it might reduce compressor surge and get rid of the turkey noise, but the MAF will think there's more air in the system than there is and provide more fuel than is appropriate. I'm not saying this is the case, and I'm sure you guys have thought this through, just thinking out loud (or on-line, as it were).
 
I'll vouch for the Spool up time and BOV sound associated with the "Air Ram" concept. It should be called "Air funneling" or something similar because you are not ramming air nor would you want to the the turbo. You are directing cold air to a short ram intake, giving you a cold air/short ram intake with the best of both worlds. I have a modified version of this setup (look in my sig), and have driven a MSP with the Injen CAI and the difference in spool up time is night and day. I don't know anything about the turbohoses version of this setup, but I can say that mine is similar and works excellent.
 
rocketspeed said:
Sounds great. I may be willing to dump my AEM for that, as I'd vastly prefer a good short ram intake to the CAI, particularly for winter driving. If it helps kill the turkey noise, all the better. I'm thinking of running your hardpipes and maybe even the SMIC, so having it all prototyped together is a nice plus, as you can be sure it all works together.

How's it running? if the BPV is just blowing the pressure back through the MAF and out the filter it might reduce compressor surge and get rid of the turkey noise, but the MAF will think there's more air in the system than there is and provide more fuel than is appropriate. I'm not saying this is the case, and I'm sure you guys have thought this through, just thinking out loud (or on-line, as it were).

Your are correct.
We rerouted the bypass valve after the MAF to avoid this problem.

Turbohoses R&D
 
mazdaspdprotege said:
with the airram work with other filters such as apexi ?

If there is enough room and you have the correct hoses, it "might" fit with the PIPING, but not the Apex filter.

Turbohoses R&D
 
rocketspeed said:
Is the hardpipe for the intake aluminum or steel?


Tests were done with both metals, but there was no difference.
We are checking tooling costs and possibly making it in silicone.

Turbohoses R&D
 
Turbohoses said:
Your are correct.
We rerouted the bypass valve after the MAF to avoid this problem.

Turbohoses R&D
Wasn't it already mounted after the MAF with the stock box? AEM and Injen also locate it after the MAF (meaning in between the turbo and the MAF). I don't think it works any other way given the use of a MAF on the car- otherwise the MAF tells the ECU to do the wrong things.

What are your thoughts on the lack of or reduction in the turkey noise with your intake? Given that compressor surge has been established as the cause of the turkey noise, does the design of the intake help alleviate that compressor surge, or does it just change the sound and not really address the cause?
 
rocketspeed said:
Wasn't it already mounted after the MAF with the stock box? AEM and Injen also locate it after the MAF (meaning in between the turbo and the MAF). I don't think it works any other way given the use of a MAF on the car- otherwise the MAF tells the ECU to do the wrong things.

What are your thoughts on the lack of or reduction in the turkey noise with your intake? Given that compressor surge has been established as the cause of the turkey noise, does the design of the intake help alleviate that compressor surge, or does it just change the sound and not really address the cause?
A better intake is going to make the turkey sound worse, not better. A better intake will increase the spooling and airflow of the turbo, thus increasing performance. The turkey is created by cavitation when the TB closes, and the turbo is still spooling. This creates a backpressure created because the turbo air has no where to go and fights the air coming from the turbo. You need a BOV to eliminate this problem (whether you run it recirc or open vent). The problem with open vent is the stalling (MAF accounting for ait that is lost). That's where the Dual BPV/BOV setup comes in. You will need a BOV in some fashion to get rid of the turkey with a better intake than stock.
 
well if this intake makes the "Turkey" sound more like a slight BOV sound and is around 200 ish bucks then you can sign me up.

Much rather buy from turbohoses than AEM/INJEN so they will continue to support tha MSP boyz ! (evil)
 
jurgs01 said:
A better intake is going to make the turkey sound worse, not better. A better intake will increase the spooling and airflow of the turbo, thus increasing performance. The turkey is created by cavitation when the TB closes, and the turbo is still spooling. This creates a backpressure created because the turbo air has no where to go and fights the air coming from the turbo. You need a BOV to eliminate this problem (whether you run it recirc or open vent). The problem with open vent is the stalling (MAF accounting for ait that is lost). That's where the Dual BPV/BOV setup comes in. You will need a BOV in some fashion to get rid of the turkey with a better intake than stock.
I'm aware of how poeple have gotten rid of the turkey (its also there with stock, just muffled by the box), but Turbohoses is saying that the turkey sound is eliminated or reduced with their SRI and I'm trying to figure out how that is happening. They are not running a dual BOV/BPV.

Even the dual BOV/BPV seems less than ideal, as the BOV would be venting off pressure outside of the intake tract, just less of it, which provides better drivability, but still less than optimal f/e ratios. I think Perrin had discussed this in one of their threads.
 
kazson said:
well if this intake makes the "Turkey" sound more like a slight BOV sound and is around 200 ish bucks then you can sign me up.

Much rather buy from turbohoses than AEM/INJEN so they will continue to support tha MSP boyz ! (evil)
I think what they were saying is that the intake makes the BOV louder (assuming you already have a BOV), it doesn't make the turkey sound like a BOV. I do agree with your second statement though. Support those who are making MSP products so they continue to do so!
 

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