FAQ: Joe Z D-AFI Intake Development for 2006+ IS - Final DYNO's & Final Product Pics! - Lexus IS Forum
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post #1 of 171 (permalink) Old 02-25-2006, 11:04 AM Thread Starter
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Install Guide FAQ: Joe Z D-AFI Intake Development for 2006+ IS - Final DYNO's & Final Product Pics!

Hello to all fellow IS Enthusiasts !!!

Based on the amount of inquires I have received…
After a long weighing decision, I have chosen to R&D the Joe Z Direct AirFlow Intake (D-AFI) for the All-New IS250 & IS350.

For those who don't know here is a link to the version for the IS300:
Joe Z Intake IS300

I have completed the design & development stages and it is now currently in testing stages..

IS250 Progress report:
After approx. a week of driving (IS250 Manual -> Big Thanks to Travis), the intake has performed well and the local owner has stated that the intake has produced a robust and likeable sound above 3k rpms @ wide-open throttle (wot).
Overall the response of the car has also increased & performed well.
Quote:
Originally Posted by lxlplaylxl (03-11-2006)
Ok as some of you may know I was testing the joe-z prototype intake on my is250, so here are my 2 cents (along with an analysis haha):

With the intake on:

Performance: I do definitely feel a difference in power esp at 3500 rpm on up

Sound: The intake does create a more deep and likeable noise. Both friends and familiy have noticed the change while riding in the car.

with the intake off:

Performance: I feel a loss of power all through the power band, and the car is not quite as responsive.

Sound: car is much more quiet.

IS350 progress report:
After approx. a week of driving (IS350 Auto -> Big Thanks to Andy), the intake has performed well and the local owner has stated that the intake has produced a robust and likeable sound above 4,500k rpms @ wide-open throttle (wot).
Overall the response of the car has also increased & performed well.

Quote:
Originally Posted by hogchow (03-25-2006)
I figure I should post something considering I am the one who tested the JoeZ intake on my IS350.

The most notable difference for me is the change in sound. The IS is a pretty quiet car (with the hood down and sitting inside the interior chamber), but you do notice a throatier sound at higher RPMs with the JoeZ Intake. By higher RPMs, i mean over 4k, but I really noticed the sounds around 4400.

I wasn't used to how fast the IS350 was stock, and installed the intake with only around 1600 miles on it. At the time of testing, I had around 1900 miles on the car. I did notice one thing, when i hit the VVTi on the highways, it does seem to pull harder with the intake than without. I noticed this on the drive home from SP engineering that day. Hopeful we can do another dyno sometime in the near future and get a more accurate reading becaues the numbers do not justify the difference.

One benefit of the JoeZ intake is the ease of installation and the design. It took maybe all of 10 minutes to install.

Hope this information may help some of you.
Quote:
Originally Posted by caymandiver75 (5/2/2006)
Joe, the results look good and as expected! Too bad you can't measure throttle response on the dyno because that is where I feel most of the difference.
I'm looking forward to getting on the dyno again in a week or so to see what kind of results I'll get with several hundred miles on the car. This should be plenty of time for the ECU to have adjusted itself for the intake pipe upgrade (D-AFI).

In addition, NO check engine lights and the sound the intake produces are not intrusive.


Hopefully, this intake pipe combined with the possibilities of a Drop in filter like TRD, Blitz, K&N, AFE, etc, etc... will give a reliable and low cost effective performance and rear wheel horsepower gains.

For now, enjoy a sneak preview of how it will look installed.
Keep in mind this is still in a raw material finish.

Enjoy!!!!
(prototype pics removed)

Joe Z

Final DYNO TEST Results for the 2006 IS350 & IS250 and Installed Pictures.

Quote:
Originally Posted by Joe Z
OK so today we finally had the IS350 Final Dyno testing completed..
The results are exactly what I expected...

You will not be disappointed if you Install this Intake Pipe on your IS250 or IS350... I Promise!!

I would like to THANK again Andy (hogchow IS350), Travis (lxlplaylxl IS250) and SP Engineering for all their involvement, time and effort that went into this entire process!!
Also a Big Thanks goes to "dasgalloway" for helping me a long the way with a lot of tips and info I used for collecting the data!!

**Both IS's were Dyno Jet tested. With a 5% load.
**Base run was done 1st and then shut down for approx. 15-25 mins for intake swap.
**Then Dyno tested again with just the Intake pipe installed.
**OEM filter was clean for both cars and remained in place.
**Also, there was NO ECU resetting between runs.
**Both cars had the VDIM disabled, via the "secret code"!
**Both cars were DYNO'd up to 4th gear ONLY.
**Both cars were DYNO'd with cooling fan in same exact loaction during every acutal Dyno Run; pics taken may show different locations.

Below: The IS350 DYNO tested very well today (5/1/2006).
It was a warmer day compared to the last Dyno day.
This time around the tech did very well in dyno'ing the Auto and we did some great pulls with out any downshifting and/or heat soaking issues..

DYNO Jet Graphs are SAE Corrected

IS 350 Black
6 Speed Auto - 4,959 miles

THIS IS THE SAME IS350 WE USED IN THE FIRST DYNO TESTING DONE ON 3/9/2006

Base Run
Max Power 265.8 Max Torque 241.7

w/ Joe Z Intake Pipe Installed
Max Power 269.7 Max Torque 245.4

Gains
Max Power = 4 RWHP* (rear wheel horse power)
Max Torque = 3.7


Measurement of percentage of Factory Rated Base HP (306) to Dyno Tested Base RWHP (265) was an approx. 14% loss to the wheels.

Just to be clear the graph comparison shoud be viewed from 4,900 Rpms and UP.....






************************************************** ***********

data from page 1

Below: The IS250 DYNO went very well on 3/9/2006
The fact that it was manual helped a lot!! Also, it was able to cool down once it got off the FWY, and waiting for the IS350 to complete Dyno testing. Also, it was driven for a week in base trim. So our base numbers were good. When we swaped the intake the new numbers were even better!

DYNO Jet Graphs are SAE Corrected

IS 250 White
6speed Manual - 4,401 miles


Base Run
Max Power 173.3 Max Torque 162.5

w/Joe Z Intake Installed
Max Power 179.3 Max Torque 168.1

Gains
Max Power = 6 RWHP* (rear wheel horse power)
Max Torque = 5.6


Measurement of percentage of Factory Rated Base HP (204) to Dyno tested Base RWHP (173) was an approx. 15% loss to the wheels.





************************************************** ***********

Some more installed pictures...








Thank You
Joe Z

2008 Smoky Granite Mica IS-F w/ ML ~ NAV ~ Black Leather
PTS Exhaust, designed by Joe Z ~ TRD Shift knob ~ Protected by Aerotect
Five Axis Design R5:F Wheels on Continental Extreme DW


Joe Z Intake <- Designed by an Enthusiast for Enthusiasts

01' GGP ~ #131 Born 5/00 ~ Lost 4/07
ALL MY MODS are For Sale here: Joe Z’s Super Garage Sale

Last edited by Joe Z; 05-02-2006 at 02:36 PM. Reason: Added Final Dyno's & Final Installed Shots
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post #2 of 171 (permalink) Old 02-25-2006, 11:17 AM
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Man I can't wait for the dyno #'s.Are any companies making air filters for the 2nd gen yet?+rep

*a lot of money "invested" on mods*
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post #3 of 171 (permalink) Old 02-25-2006, 12:11 PM
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looks great! keep up the good work
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post #4 of 171 (permalink) Old 02-25-2006, 12:42 PM
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nice work, can't wait to tsee the numbers
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post #5 of 171 (permalink) Old 02-25-2006, 03:18 PM
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Like I said, the numbers will be interesting to see.

Toyomoto Supercharged '03 TCM E-Shift IS300
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*NEW* ISX50 Parts Catalog | IS300 BPU Parts Catalog

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post #6 of 171 (permalink) Old 02-25-2006, 04:24 PM
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any pics without the engine cover?
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post #7 of 171 (permalink) Old 02-25-2006, 05:15 PM Thread Starter
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Quote:
Originally Posted by car_lost
any pics without the engine cover?
I have a few.... But for now this is all I would like to show!!

Hence the "Sneak Preview"...
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post #8 of 171 (permalink) Old 02-26-2006, 01:59 AM
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wow thats a good looking engine bay :]

+rep
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post #9 of 171 (permalink) Old 02-26-2006, 07:11 PM
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good work joe... cant wait to see the dyno.

your is300 intake pipe really does work best to me out of the available intakes for our is300.. so i cant wait to see how this works out on the is250/is350.

Hmm... what to put?
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post #10 of 171 (permalink) Old 02-26-2006, 08:31 PM
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Another excellent product in the making...

1999 Honda Civic LX
Frnt and Rr IS300 conversion
RWD conversion via S2000 driveshaft
2JZ-GE Swap
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post #11 of 171 (permalink) Old 03-10-2006, 02:23 AM
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thanks joe for contributing to the 2gen community I'm lookin forward to seeing the posted dynos
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post #12 of 171 (permalink) Old 03-10-2006, 07:00 AM
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any updates on this?
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post #13 of 171 (permalink) Old 03-10-2006, 01:19 PM
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I say it's gonna give at least 6rwhp...the new 06 IS has been yielding a lot more power than what a is300 can do with bolt-ons with the new engines.
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post #14 of 171 (permalink) Old 03-10-2006, 02:05 PM Thread Starter
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DYNO Testing was performed and completed yesterday..

Results are good.

I will be posting the data analysis later today... .
Just give me some time to get all the data, info & pics together.

Thanks
Joe Z

2008 Smoky Granite Mica IS-F w/ ML ~ NAV ~ Black Leather
PTS Exhaust, designed by Joe Z ~ TRD Shift knob ~ Protected by Aerotect
Five Axis Design R5:F Wheels on Continental Extreme DW


Joe Z Intake <- Designed by an Enthusiast for Enthusiasts

01' GGP ~ #131 Born 5/00 ~ Lost 4/07
ALL MY MODS are For Sale here: Joe Z’s Super Garage Sale
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post #15 of 171 (permalink) Old 03-10-2006, 03:12 PM
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Quote:
Originally Posted by Joe Z
DYNO Testing was performed and completed yesterday..

Results are good.

I will be posting the data analysis later today... .
Just give me some time to get all the data, info & pics together.

Thanks
Joe Z
good to hear!
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