New aftercooler and 500+ whp

[[email protected]]

I will post the data from the dyno later in the week when I get back.

Bythe way - she made 261 whp naturally aspirated with 9.0:1 compression the week before we bolted on the new blower setup.

A huge thanks to Mark Basch for lending me a Paxton for testing (thieves suck).

 

[[email protected]]

Re: New aftercooler = 500+ whp

Development pic

 

[[email protected]]

Re: New aftercooler = 500+ whp

The car...

 

[Acura NsX Pilot]

Re: New aftercooler = 500+ whp

Very impressive ..... good luck with the project. Im guessing from the pic that the OEM engine cover will not go back on with this set up ?

 

[Jin1976]

Re: New aftercooler = 500+ whp

What is the funtion of the equipment shown in the photo?

 

[Surff78]

Re: New aftercooler = 500+ whp

where does the 500 whp come into play?

 

[len3.8]

Re: New aftercooler = 500+ whp

where does the 500 whp come into play?

And at how many LBS of boost/
Nice power.. how was the torque numbers?
The AC looks good as well.

 

[Sig]

Re: New aftercooler = 500+ whp

Looks good Devin! Is this an AEM product?

 

[[email protected]]

Re: New aftercooler = 500+ whp

The OEM cover does not fit over the new setup and the aftercooler is not an AEM product. I am however using an AEM fuel pressure regulator, AEM dual channel UEGO, and of course an AEM EMS (I removed the throttle-by-wire and backdated the car to utilize a throttle cable and OBD1 electronics). I will post boost levels and some dyno graphs after I return home on Friday.

The new cooler setup is something that I've been working on for over a year on my own. I appreciate your comments.

 

[Sig]

Re: New aftercooler = 500+ whp

The OEM cover does not fit over the new setup and the aftercooler is not an AEM product. I am however using an AEM fuel pressure regulator, AEM dual channel UEGO, and of course an AEM EMS (I removed the throttle-by-wire and backdated the car to utilize a throttle cable and OBD1 electronics). I will post boost levels and some dyno graphs after I return home on Friday.

The new cooler setup is something that I've been working on for over a year on my own. I appreciate your comments.

Congrats man. It looks like it 'belongs' there, which is the best you could hope for... aside from it being functional of course.

 

[coldhammer]

Re: New aftercooler = 500+ whp

Could you post a side view so we can see how far up out of the bay it sticks.

THanks

 

[Juice]

Re: New aftercooler = 500+ whp

Pretty impressive! How much work has been done to the internals to handle the additional strain?

 

[WOODY]

Re: New aftercooler = 500+ whp

Looks great Devin! Have you measured the IAT's ? Does it have the usual spearco mounted in front of the radiator? Lots of questions, but I will patiently wait for your write up.
woody

 

[dave22]

Re: New aftercooler = 500+ whp

Is that a Laminova core?

 

[[email protected]]

Re: New aftercooler = 500+ whp

Glenn - I've got a ton of great data on the way. The IATs have been extremely low even with terrible engine heat temps doing hot dyno runs one right after another. Very, very stable temps. I made another identical 2 row aluminum heat exchanger in front of the radiator identical to yours as well as the same 1 gallon composite water cell and water pump. Everything is working great!

The core is Laminova and is proving to work just as expected. The end tanks are custom one-off cast aluminum with quite a bit of time spent in regards to air flow.

The engine is a fully built 3.2L with low compression pistons, Ti rods, and ductile sleeves.

When I get back from this trip, I will post a bunch more pics and solid data.

 

[[email protected]]

Re: New aftercooler = 500+ whp

I am attaching 3 dyno graphs.

The first is the baseline run of the low compression built engine with just a 3" aluminum tube and 3" ID inlet AEM cone filter for an intake (no supercharger). This allowed us to get a true baseline to gauge the boosted runs against. I couldn't complain with 261 whp from a 3.2L considering the 9.0:1 low compression build.

The second is a low boost run with a pulley supplied from Mark Basch that produced approximately 7 psi (no tuning changes or improvements from my street tuning). Pretty much right in line with what I expected in comparison to others with similar modifications / boost.

The last graph shows a run with a pulley I made for my final pump gas street setting. This produced 14 psi @ 7800 RPM and showed over 525whp with just one improvement in timing advance and a little touch on the fuel table to fine tune the air/fuel ratio. All in all less than a dozen dyno runs from 261 N/A to 526hp boosted. Dan and I couldn't stop joking about it after the last dyno runs because essentially I haven't even started to push with more advance and leaner air/fuel ratios for power.

Some race gas and a smaller pulley for more boost is going to be insane! You just can't wipe the smile off your face on the street - power is so linear and just doesn't stop pulling to redline. I can't wait to test performance at the local track considering it ran 11.9 @ 119mph with 401 whp a year ago.

Based on what I've heard from several members, I think this is the most hp documented from a supercharged NSX.

 

[[email protected]]

Re: New aftercooler = 500+ whp

7 psi with no tuning changes from street tune:

 

[[email protected]]

Re: New aftercooler = 500+ whp

14psi with just minor timing advance and fuel changes:

 

[Surff78]

Re: New aftercooler = 500+ whp

pretty impressive.. whats this set up going to cost to get 500+ HP

 

[MiamieNeSeX]

Re: New aftercooler = 500+ whp

Nice numbers Devin. How low did you get the IATs in comparison with the ambient?

Armando

 

[nsx-animal]

Re: New aftercooler = 500+ whp

What are your intake temperatures?

 

[NetViper]

Re: New aftercooler = 500+ whp

Wow! That is incredible. I can only imagine what it is like to drive.

 

[Hugh]

Re: New aftercooler = 500+ whp

where does the 500 whp come into play?

Probably about 3 milliseconds before the engine does an amazingly lifelike re-creation of Chernobyl.

(Sorry, couldn't resist)

 

[coldhammer]

Re: New aftercooler = 500+ whp

Wow nice numbers devin. Other than sleeving the block have you done any other reinforcement stuff?

 

[prova4re]

Re: New aftercooler = 500+ whp

You Suck!.........and your car BLOWS! :wink: