FAQ: Joe Z D-AFI Intake Development for 2006+ IS - Final DYNO's & Final Product Pics! - Page 2 - Lexus IS Forum
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post #16 of 171 (permalink) Old 03-10-2006, 06:05 PM Thread Starter
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Dyno Analysis of IS250 & IS350

Ok after 2 other failed attempts, last night we were ALL able to make it to SP Engineering (here in So Cal) to independently DYNO test the "Joe Z Intake" for the IS250 & IS350!!

I would like to THANK again Travis IS250, Andy IS350, another Andy (supplied an OEM IS350 intake for sizing)... 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 cars were Dyno Jet tested. I believe with a 5% load.
**Base run was done 1st and then shut down for approx. 15 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.
**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 IS250 DYNO went very well... 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
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.






Below: The IS350 DYNO tested kind of OK. It was hot from FWY Driving and it was Dyno'd 1st. The fact it's an Auto didn't help much either. It took a few test runs to feel out the shift points to prevent down shifting at WOT. Also, the car was driven for about a week with the intake installed. We acutally swaped back to stock, right before we did the base run. So I feel the IS350 numbers could have been much better. With more testing we can probably get better numbers out of the intake. Our base number may not be as low as it might have been if the car was driven stock for a few days.
** I would also like to mention we pulled a highest run of 265.9 rwhp with the intake installed, but some how ?? we lost the data..
There was only a few people that saw it on the screen after the run... I was one of them and a tech next to me.
When we went to graph it later on, it was gone. **

DYNO Jet Graphs are SAE Corrected

IS 350 Black
6speed Auto - 1,909 miles


Base Run
Max Power 264.3 Max Torque 235.6

w/Joe Z Intake Installed
Max Power 265.1 Max Torque 236.9

Gains
Max Power = .8 rwhp
Max Torque = 1.3


Measurement of percentage of Factory Rated Base HP (306) to Dyno Tested Base RWHP (264) was an approx. 14% loss to the wheels.







As I stated above the IS250 peformed well on the DYNO and it showed Nice Gains with the intake installed!! Factors were cool down time and car was in base trim before Dyno.

The IS 350 did OK, not great/not bad. But I think a lot had to due with the way we tested the car and the few try's it took to get it right..
I'm sure I will be taking it back for more testing in the weeks to come.
** I would also like to mention we pulled a highest run of 265.9 rwhp with the intake installed, but some how ?? we lost the data..
There was only a few people that saw it on the screen after the run... I was one of them and a tech next to me.
When we went to graph it later on, it was gone. **

In my 1st post of this thread I mentioned:
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 & rear wheel horsepower gains.!!!

I wonder which company is going to make one 1st??

For now enjoy the information and the pictures!!
Stay tuned for more info..

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

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Last edited by Joe Z; 03-30-2006 at 11:38 AM. Reason: Added Info.. :) / edited IS250 base hp from 206 to 204
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post #17 of 171 (permalink) Old 03-10-2006, 06:29 PM
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nice pix and write up joe. I couldlnt have done it better myself.

Once agian thanks for the great contribution to the 2gen community!

can't wait to see the final product (black sleeves and finished pipe)

+rep!

edit: I cant rep cuz i need to show more love to other members
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post #18 of 171 (permalink) Old 03-10-2006, 06:50 PM
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"You must show some love to other members before giving it to Joe Z again. If you see this message a lot perhaps you should be more selective..."

*a lot of money "invested" on mods*
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post #19 of 171 (permalink) Old 03-10-2006, 06:52 PM
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joe-z doesn't the front act like a ram almost with the scoop forcing incoming air from above the grill into the filter compartment? seems putting one of those blue powerfull fans u put on floors in front of that scoop and it might help. i know you typically don't do something like this for a dyno as if gives false numbers, but the engine sucking through your pipe, through the filter and then taking a 90 degree left through that piping to the scoop just a long way to go for the suction to keep. i guess i'm trying to justify why the engine isn't having great gains.


then again when i compare urs vs. caymandiver's basline its about a 8hp gain. so n/m it'll work itself out

Swagger is coming back to Columbia.

Last edited by uschardcore; 03-10-2006 at 07:00 PM.
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post #20 of 171 (permalink) Old 03-10-2006, 06:56 PM
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^^^^^^^^^
Enron Investor

*a lot of money "invested" on mods*
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post #21 of 171 (permalink) Old 03-10-2006, 07:00 PM
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finally someone laughted at that

Swagger is coming back to Columbia.
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post #22 of 171 (permalink) Old 03-10-2006, 07:26 PM
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Quote:
Originally Posted by jvillagran2000
"You must show some love to other members before giving it to Joe Z again. If you see this message a lot perhaps you should be more selective..."
hahahahha me to
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post #23 of 171 (permalink) Old 03-10-2006, 07:55 PM
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Interesting numbers... good work on the 250... and it seems we've got more proof that the 350 is hard to dyno. Remember, cayman observed 10 rwp differences just by changing the way the fans are placed.

If you redyno the 350... I'd recommend closing the hood and not changing the orientation of the fans between runs. Even though your overall numbers might be a bit lower, at least by controlling the variables you can have more confidence when you say what difference your parts make.

Also remember what we talked about on the OBDII scanner for the fuel and timing trims... that'll tell you how the ECU learning is affecting your data. If I had to venture a guess... I'd say that under normal circumstances the ECU and learning isn't going to create much of a difference with this mod. Only way to find out for sure would be plug in and watch whats happening.

Nice work Joe!

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post #24 of 171 (permalink) Old 03-10-2006, 09:08 PM
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HA! I was right!...but only for the IS250 lol.
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post #25 of 171 (permalink) Old 03-10-2006, 09:15 PM
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Anyone notice that the 250 has the same annoying power dip after 4000 that the 300 does?


Toyomoto Supercharged '03 TCM E-Shift IS300
404 rwhp/325rwtq 18.5 psi pump gas

*NEW* ISX50 Parts Catalog | IS300 BPU Parts Catalog

Rep... it's not just for the Parking Lot
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post #26 of 171 (permalink) Old 03-10-2006, 09:44 PM
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Quote:
Originally Posted by dasgalloway
Anyone notice that the 250 has the same annoying power dip after 4000 that the 300 does?

I did. excuse my noob-ness but could an upshift account for the dip?
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post #27 of 171 (permalink) Old 03-10-2006, 09:57 PM
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Quote:
Originally Posted by lxlplaylxl
I did. excuse my noob-ness but could an upshift account for the dip?

Probably not... thats a 6spd , and if you upshift mid run on a dynojet you'll get a curly loop in your chart.

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post #28 of 171 (permalink) Old 03-11-2006, 04:52 AM
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Quote:
Originally Posted by dasgalloway
Anyone notice that the 250 has the same annoying power dip after 4000 that the 300 does?

Lexus is to blame lol
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post #29 of 171 (permalink) Old 03-11-2006, 04:16 PM
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any word on a production date?
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post #30 of 171 (permalink) Old 03-11-2006, 05:29 PM
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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.
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