Installed the Thrasher CAI

[kilroypr]

Guys, check how my engine bay looks with the Thrasher CAI installed.



Have not got the chance to "test" it but sounds really beautifull.
It is funny on the street lights, the imports have a real potent sound
but the GP with the CAI installed when reved up sounds really mean, powerfull. The kids on my block really had to turn their heads today when I reved up the engine after installing the CAI and looks awesome with the transparent cover. Sounds awesome.

[titleist312]

hey kilro how much hp do you expect to gain and how big of a bitch are these cai's to install? MUch cutting? fabricating?

[eckoman_pdx]

Originally Posted by titleist312

hey kilro how much hp do you expect to gain and how big of a bitch are these cai's to install? MUch cutting? fabricating?

Here is how a CAI works. For every 11.1 degree's you lower the intake temperature, you get a 1% gain in HP. This is because colder air is more dense than warm air. This is also the same way and principle behind an intercooler on a turbo motor. The HP output with a CAI depends on a)what the underhood temp is and b)what the outside ambeint temp is (since this is where the induction takes place with a CAI. If the underhood temperature is 125 degree's, and the outside ambeint temperature is 60 degree's, that's a difference of 65 degrees. That comes out to a HP increase of 5.8% under these conditons. That would eqaul an 11.6 HP gain on a 200HP motor. But the HP increase will be 1% for every 11.1 degree's you lower the intake temp with a CAI. With a short ram, induction takes place in the hot engine bay where the filter is located, so the power gain is not nearly as much, since you are not really lowering the temp. A power gain here is mostly due to the increased airflow of the new intake (which a CAI gives you too, a true CAI located the fliter outside the engine compartment, near the wheel well, for example). I hope this helps you a bit in temrs of what to expect out of a CAI.

[jeffs_GTP_sleeper]

There is some information here on CAI design under "Tech Info":

http://easyperformance.com

[kilroypr]

Ecko is correct about the engine bay, the temperature drop is not that great, and with this setup what I am getting is a heck of a lot more air CFM's into the plenum, but, check this site out http://www.zzperformance.com/zzp/inf...ns_airflow.htm. There you can see that what the cheetah and similar products would do to your intake, basically after reading the article even thought tubes that would put the cone outside the engine bay will get you cooler air, the turbulence is so great that what you gain in cooler air you loose it with the intake added effort to get the air into the combustion chamber. I have seen wind tunnels and the turbulence effect is really a restraining factor, that is why I decided on the thrasher, the air path is a lot shorter to the Intake Plenum and since I live in the Caribbean the air by definition is denser down here because of the sea level closeness. I have a thrasher 3.4” installed and with the CAI I hope to get around ~12hp. But I have not been able to certify that either at the dyno or the on the road, I just finished installing yesterday afternoon and was really easy no cutting really just opening a little more the screw hole on the PCM relocation holder. Also you can say it is a lowering weight kit
because most of the hookups are based on Velcro tapes just one screw from the original setup was used. I hope to get better gains with it since I have a modified PCM(ECU) as well. The car with a panel K&N and original air box was around ~295hp at the dyno so it could get around the ~300hp now. But I have not been able to certify that.
I will post on my gallery pictures for the car after I just blew engine and tranny and the process to put it together. I got someone that moded the 2 and the PCM to get me close to the ~300hp and the dyno pull after 5 hits was ~295hp, cool was around ~280hp.

[kilroypr]

Jeffs GTP site http://www.easyperformance.com has the WizAired CAI and is basically the same setup as the thrasher, but the thrasher(Please bear with me on this one and try to be objective as I am trying )has better looks and is lighter. What I read of the WizAired is that instead of bolting the ECU(PCM) to the car they strap it so in that sense is better than the thrasher but the thrasher looks awesome it matches with the OEM accents under the hood.

[kilroypr]

WOW the http://www.easyperformance.com site is heavy. They explain basically the same thing as the http://www.zzperformance.com/zzp/in...gns_airflow.htm but with Physics equations. That is really heavy. You should read the tech section where the talk about Induction Systems. They explain what the filter, bends on the intake and related hardware would do to your engine. It is awesome

[kilroypr]

titleist312, I forgot to mention that I had to use an old oil quart as the radiator return bottle since I was not able to find quicly the 99 and up required. The thrasher CAI ocuppies part of the space used for the stock return bottle on the 98's. But the old oil quarter bottle works fine until I find the 99 one that is supposed to be hooked on the right strut tower.

[Ripn12s]

The car with a panel K&N and original air box was around ~295hp at the dyno so it could get around the ~300hp now. But I have not been able to certify that.

Not trying to bust your chops but I think your numbers are ??????

A stock GTP (240 crank hp) will pull 195-200 hp at the wheels

With a 3.4 - intake-exhaust I put down 230fwhp
With mods in my sig I put down 291 fwhp

[kilroypr]

Ripn12s, I need to double check on those. I am adding stuff in top of what I asked for remember.
But you are correct, I have to double check the numbers.

[kilroypr]

Ripn12s, I need to double check on those. I am adding stuff in top of what I asked for the technician originally remember.
But you are correct, I have to double check the numbers.