HP Turbo Installation Started

[scorp965]

AWESOME numbers John!!! What did you mix with the water? How did you get the intake temp cooler?

We sprayed the cooler with a mist of water, but the temps were still around 170F - a larger cooler for the front needs to be devised to lower temps; also, some kind of insulation for the cone intake, and a mix of redline water wetter and distilled water, are the plans for cooling the intake temps... with a cooler intake temperature much higher numbers are possible at this boost level, or these same power levels can be had at a lower boost level, which is my intention.

 

[Flexer]

Would you mind posting your dyno plot? I am interested in seeing your torque curve to look at the boost response from it.

Thanks

J. R.

 

[scorp965]

Would you mind posting your dyno plot? I am interested in seeing your torque curve to look at the boost response from it.

Here is a cellphone camera pic, torque is on the left, and peaks at 312.6; incriments are by 20tq; horsepower is on the right. The final tune is the purple graph:

This is the standard, non-ball-bearing, oil cooled turbo... it seems the big enemy right now isn't spool time, etc, it is heat - the intake temps were 170F after a few runs, and these measured values wouldn't get any lower even when we waited 15 minutes between runs, and misted the components with water.

After the wait time, and water misting, we made a large jump in power and did the final two runs for the ending result... the measured intake heat value was still 170F, but the heat must have moved to other components, resulting in the gain.

 

[GQ NSX]

John, just awesome....seriously. I hope to be one of the first on an OBD2 model.

 

[coolnsx]

Congrats John, glad to hear it's working well.

 

[01blacks4]

remember the temps will not be as high driving as they are on a dyno...as far as the 170...it does seem high...thats what my air to air does on the dybo in phoenix (remember, 80-90 is a cool day here)

dont worry about the air intack (filter) getting that colder will not help, as that air will then get heated to the turbo temp....just get a better heat exchanger for the IC system and you will be fine.....


nice numbers...with all the hooplah i was expecting more.... but they look like what the math says it should have....

glad it on the road again

 

[vtecNSX1]

We sprayed the cooler with a mist of water, but the temps were still around 170F - a larger cooler for the front needs to be devised to lower temps; also, some kind of insulation for the cone intake, and a mix of redline water wetter and distilled water, are the plans for cooling the intake temps... with a cooler intake temperature much higher numbers are possible at this boost level, or these same power levels can be had at a lower boost level, which is my intention.

Have you thought about methanol injection? It would lower the iat a lot and allow more timing and boost to be run on 91 octane. The new kits out there are quite reliable and have many failsafes.

 

[scorp965]

Have you thought about methanol injection? It would lower the iat a lot and allow more timing and boost to be run on 91 octane. The new kits out there are quite reliable and have many failsafes.

I have a larger heat exchanger coming; I also received a call from HP yesterday, with a few recommendations on improving these numbers.

Here is a picture of the heat exchanger I ordered from summit:

It will mount in front of the radiator... dimensions are 24x6.5x3.5"

 

[WOODY]

That should do the job. Has anyone heard of a reservoir that has a submersible pump inside it to minimize noise?

 

[scorp965]

That should do the job. Has anyone heard of a reservoir that has a submersible pump inside it to minimize noise?

It would be a relatively simple DIY, using silicone to eliminate leaks and a large plastic tank for the reservoir... The reservoir that comes with the HP kit was designed as a fuel cell, so perhaps look for an aftermarket fuel tank with an integrated pump that has the flow rates you're after. To minimize noise on my installation we used a silicone sleeve to mount the pump (with a hose clamp), and rubber washers to reduce vibration - the pump noise is only noticable with the car off (accessories running), from outside.

 

[menfou]

Your Heat Exchangers is the AFC-80274N ??
Do you know the inlet/outlet size ?

 

[scorp965]

Your Heat Exchangers is the AFC-80274N ??
Do you know the inlet/outlet size ?

It's the fluidyne fld-fhp3003cobhx - the barbs are 5/8", the unit is 24x6.5x3.5"

Link

 

[menfou]

Hello scorp,

Did you receive your new heatexchanger ? no problem to fit in front ?
Thank you

 

[scorp965]

Hello scorp,

Did you receive your new heatexchanger ? no problem to fit in front ?
Thank you

Hello,

The heat exchanger arrived about a week ago, we're just waiting for some shop space to clear up so we can go forward with the installation.

In the meantime I ordered a 'large yellow' wastegate spring to replace the 'large red' spring that came installed in the tial 44mm wastegate. The 'large red' is intended to provide just over 10psi of boost, we were measuring peak boost of 9.5psi... the 'large yellow' spring should bring it down to around 8psi.

Also due for installation are NGK BKR7E plugs, gapped to 0.030" on the recommendation of HP performance... these are replacing (2000 mile old) NGK Iridium IX plugs, at the stock gap of 0.044".

It's also my intention to go to a tuner recommended by HP... the tuner I had used is highly recommended, but the less variables the better... if the IAT's can be lowered, the boost can be lowered from 9.5 to 8psi, and a tuner who has worked with HP can get their hands on the car it should result in a positive outcome... I will update this thread as changes occur, right now, as I said earlier, we're waiting on shop space to clear for the installation of the above components, and I am waiting to hear from the tuner I was referred to.

 

[scorp965]

Here are pics from today... new (larger) heat exchanger, new plugs (colder/closer gap), new spring (should be around 8psi)... now its time to see the tuner again...

 

[da3dalus]

Looking good. I'm very intrested to see the new results!

 

[01blacks4]

WOW are those tips as uneven as they look in the pic?

 

[scorp965]

WOW are those tips as uneven as they look in the pic?

It's a bad angle... they're uneven, but not as bad as they appear... the tips are roughly the same height, but the left tip should be another inch or so out... the pipe is adjustable for width, but its at the maximum width, and still needs to go a little further... probably a simple relocation of the hanger pin on the muffler, but, obviously, not a priority at the moment.

 

[menfou]

Very good.
Thank you for the pictures

 

[menfou]

Hello,

Do you know your water temp when you had 170°F?
Why you don't try with ICE ?
Do you measure the Air temp with the stock IAT or other ?


Thank you, and I waiting to see the result with your new hear exchanger :biggrin:

 

[scorp965]

Hello,

Do you know your water temp when you had 170°F?
Why you don't try with ICE ?
Do you measure the Air temp with the stock IAT or other ?


Thank you, and I waiting to see the result with your new hear exchanger :biggrin:

The temps measured were with the stock IAT sensor, through the AEM... The water temperature was not measured.

I have an appointment with a new tuner on Monday, using a new baseline map from HP Performance... the car has the above changes, the boost has been decreased from 9.5 psi to somewhere around 8psi with the new wastegate spring, and the new tune will be on a dynojet, which typically reads slightly lower than a dynapack.

The hope is that, despite the different dyno and lower boost level, similar power numbers will be achieved, while long term boosted reliability will be realized. I want to drive the car for a significant period of time before undertaking any radical engine modifications, but its nice to know that, if such a desire were to arise, the kit seems capable of significantly enhanced performance, in addition to what should already be a good deal of power for the car. I will update this thread when I get back from the tuner on Monday, the appointment, pending confirmation, is set for noon.

 

[da3dalus]

Either way, you're dynoing on a chassis loaded dyno, so you should be able to really fine tune real world driving conditions and get very accurate maps created. Can't wait to hear the results!

 

[menfou]

The temps measured were with the stock IAT sensor, through the AEM... The water temperature was not measured.

The stock IAT value are BAD if you don't move the IAT.
You need to plug the IAT in the charge pipe near the TB.

 

[01blacks4]

i agree with menfu....

i also disagree with your dyno evaluation between dynojet or dynapak...but thats a whole new thread:biggrin:

nice heat exchanger too

 

[brandonsan]

Nice #s ! Glad to see you have most of it sorted out now.