FAQ: Joe Z D-AFI Intake Development for 2006+ IS - Final DYNO's & Final Product Pics! - Page 3 - Lexus IS Forum
User Tag List

Reply
 
LinkBack Thread Tools
post #31 of 171 (permalink) Old 03-11-2006, 10:14 PM
Aficionado
 
JimmyTheMonkey's Avatar
 
Join Date: Jun 2005
Location: Atlanta, GA
Posts: 864
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Good work! Is there baffling in the IS250/350 like in our IS300s that helps give the gains, or is it just a better pipe? It's hard to see whats going on in the new IS engine bays even with the covers off
JimmyTheMonkey is offline  
Sponsored Links
Advertisement
 
post #32 of 171 (permalink) Old 03-13-2006, 04:03 AM
Loyalist
 
Join Date: Nov 2004
Location: CT
Posts: 1,573
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
is it jsut me or did the striaght piping for the 350 see a big lost in torque/hp before 4800rpm?

joe-z can you do me a favor can you take a pic of the stock intake piping for me? im assuming it has a resonated chamber right? how big is it? just curious, oh and whats the diameter of the stock intake piping? if the stock resonator is helmholtz resonator it might be tuned for low rpm torque and you might want to leave it on there

Last edited by goohead; 03-13-2006 at 04:30 AM.
goohead is offline  
post #33 of 171 (permalink) Old 03-13-2006, 10:04 AM Thread Starter
Manufacturer of Pipes
 
Joe Z's Avatar
 
Join Date: Sep 2002
Location: West Coast
Posts: 5,285
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by goohead
is it jsut me or did the striaght piping for the 350 see a big lost in torque/hp before 4800rpm?

joe-z can you do me a favor can you take a pic of the stock intake piping for me? im assuming it has a resonated chamber right? how big is it? just curious, oh and whats the diameter of the stock intake piping? if the stock resonator is helmholtz resonator it might be tuned for low rpm torque and you might want to leave it on there
I think its just you.... there is the same dip in the base run..
I don't see it as a "big lost"..

I currently don't have one to take a picture of..
But there are a few pics floating around here... If I had to guess on size, I would say its approx. 3 inches.. give or take 1 or 2 mm.

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 Zís Super Garage Sale
Joe Z is offline  
 
post #34 of 171 (permalink) Old 03-13-2006, 10:27 AM
Loyalist
 
Join Date: Oct 2005
Location: Miami, FL
Posts: 1,590
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Any estimates on release date?
car_lost is offline  
post #35 of 171 (permalink) Old 03-13-2006, 03:41 PM
Not Officially Back
 
dasgalloway's Avatar
 
Join Date: Jun 2003
Location: Houston
Posts: 12,742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by goohead
is it jsut me or did the striaght piping for the 350 see a big lost in torque/hp before 4800rpm?

joe-z can you do me a favor can you take a pic of the stock intake piping for me? im assuming it has a resonated chamber right? how big is it? just curious, oh and whats the diameter of the stock intake piping? if the stock resonator is helmholtz resonator it might be tuned for low rpm torque and you might want to leave it on there

The 350 is an automatic, so you can't trust a dyno below the shift point.

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
dasgalloway is offline  
post #36 of 171 (permalink) Old 03-13-2006, 03:42 PM
Not Officially Back
 
dasgalloway's Avatar
 
Join Date: Jun 2003
Location: Houston
Posts: 12,742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by goohead
is it jsut me or did the striaght piping for the 350 see a big lost in torque/hp before 4800rpm?

joe-z can you do me a favor can you take a pic of the stock intake piping for me? im assuming it has a resonated chamber right? how big is it? just curious, oh and whats the diameter of the stock intake piping? if the stock resonator is helmholtz resonator it might be tuned for low rpm torque and you might want to leave it on there

The 350 is an automatic, so you can't trust a dyno below the shift point.

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
dasgalloway is offline  
post #37 of 171 (permalink) Old 03-13-2006, 03:47 PM
Loyalist
 
Join Date: Oct 2005
Location: Miami, FL
Posts: 1,590
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
and for the record, the 350 is an automatic, so you can't trust a dyno below the shift point.
car_lost is offline  
post #38 of 171 (permalink) Old 03-13-2006, 03:48 PM
Not Officially Back
 
dasgalloway's Avatar
 
Join Date: Jun 2003
Location: Houston
Posts: 12,742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Haha server was too busy and puked my post 2x.

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
dasgalloway is offline  
post #39 of 171 (permalink) Old 03-13-2006, 03:50 PM
Loyalist
 
Join Date: Oct 2005
Location: Miami, FL
Posts: 1,590
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
hehe... :D
car_lost is offline  
post #40 of 171 (permalink) Old 03-14-2006, 08:16 AM
Addict
 
Join Date: Oct 2002
Location: Vegas, Japan, Philippines
Posts: 2,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
hehe... :D

2002 IS 300
2005 X5
2008 335I
IS300_S is offline  
post #41 of 171 (permalink) Old 03-14-2006, 09:22 PM
Loyalist
 
Join Date: Nov 2004
Location: CT
Posts: 1,573
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by Joe Z
I think its just you.... there is the same dip in the base run..
I don't see it as a "big lost"..

I currently don't have one to take a picture of..
But there are a few pics floating around here... If I had to guess on size, I would say its approx. 3 inches.. give or take 1 or 2 mm.

Thanks
Joe Z
maybe im jsut reading it wrong

red = w/ joe z
green = baseline

right??

goohead is offline  
post #42 of 171 (permalink) Old 03-15-2006, 01:25 AM Thread Starter
Manufacturer of Pipes
 
Joe Z's Avatar
 
Join Date: Sep 2002
Location: West Coast
Posts: 5,285
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by car_lost
Any estimates on release date?
TBA very soon!!!
Joe Z is offline  
post #43 of 171 (permalink) Old 03-15-2006, 01:31 AM Thread Starter
Manufacturer of Pipes
 
Joe Z's Avatar
 
Join Date: Sep 2002
Location: West Coast
Posts: 5,285
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by goohead
maybe im jsut reading it wrong

red = w/ joe z
green = baseline

right??
Again, Dyno'ing the Automatic was not easy at all...

I'm pretty certain it's related to up shifting the paddles at different ship points / rpms....

Das, could probably give us a better read out or understanding.

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 Zís Super Garage Sale
Joe Z is offline  
post #44 of 171 (permalink) Old 03-15-2006, 05:37 AM
CEB
Addict
 
Join Date: Jan 2004
Location: 横浜/UK/Maryland
Posts: 2,488
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
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..."


Sorry Joe, I got the same.....Actually it really should say 'LESS SELECTIVE', as in 'less selective' to who one chooses to give out REP.

-2002 GGP 5 Speed - 3.91:1 LSD -2004 OEM CD Changer!-
-BC 264 Stage 2 - Titan Cam Gear@ -3.5*-
-FIGS 323mm Supra TT Rotors-
To be installed...SAFC2----All Mods & Maintenance Done by Yours Truly
CEB is offline  
post #45 of 171 (permalink) Old 03-15-2006, 07:30 AM
Not Officially Back
 
dasgalloway's Avatar
 
Join Date: Jun 2003
Location: Houston
Posts: 12,742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
           
Quote:
Originally Posted by Joe Z
Again, Dyno'ing the Automatic was not easy at all...

I'm pretty certain it's related to up shifting the paddles at different ship points / rpms....

Das, could probably give us a better read out or understanding.

Thanks

Joe Z

Guys- You can only trust a dyno when you're @ 100% throttle. Usually, with a manual car like the 250 here, you put it in gear, start @ 2000 RPM, floor it to 100% throttle, and do the dyno til redline.

An auto like the 350 is a bit more tricky. In an auto, if you go 100% throttle, it'll downshift to the lowest available gear and go from there. If you start @ 2000 RPM in 4th gear and floor it, it'll actually downshift into 3rd or 2nd, the RPMs will jump up to 5000 or so until it runs out of revs and shifts to the next gear.

The trick on an auto is to ease into the throttle, never going to 100% until after the downshift point... thats the point where, even if you go all in, if won't downshift, so you can get a good dyno reading @ 100% throttle.

On the IS300 this "point of no downshift" is around 4200 RPMs... thats why you'll never really see dyno's below 4000 on an automatic. Usually I edit out anything lower to eliminate confusion (so I don't have to type out posts like this one ). On the 350, the max RPM is higher and it's got one more gear, so I imagine that point might be even higher (around the 5000 you see on the dyno)


Now Joe, on the 350, I believe there is a tranny mode that won't force a downshift... like the eshift mode we've always wanted on the 300. Lemme call up my dealer and see if I can confirm that. If so, thats what we should dyno the 350's in so we can see below 5000 rpms.

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
dasgalloway is offline  
Sponsored Links
Advertisement
 
Reply

  Lexus IS Forum > 2nd-Gen IS250/IS350 > Go Fast Stuff

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Lexus IS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself. If your address is invalid, you will likely lose access to the site.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Current users viewing this Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome