Fordmods Logo

Tuning a turbocharged car 

 

Page 1 of 1 [ 7 posts ] 

 
 Post subject: Tuning a turbocharged car
Posted: Sun Jul 16, 2006 1:32 pm 
Technical Contributor
Offline
User avatar

Posts: 2799

Joined: 6th Nov 2004

Gallery: 7 images

Ride: Falcon

Location: Sydney
NSW, Australia

howdy,

Im just wondering on the basic principles of tuning in a boosted application. I can do N/A no worries, but then once it starts spooling and creating positive pressure, I can sort of understand what needs to be done (retard spark, make sure its not leaning).

But there's always more to it, So Im posting here.

Basically tuning basics on the transition between atmospheric pressure and boost, and while on boost.


Cheers

 

_________________

;++JustForDimSim++;

Cheap, fast and reliable.. choose 2.

Top
 Profile  
 
 
Posted: Mon Jul 17, 2006 11:12 pm 
Getting Side Ways
Offline
User avatar

Age: 64

Posts: 3552

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

AFR around 11.5 especially around max torque level, no leaner than 11.8...
Spark depends alot on engine type and condition...start with 18* and work up.. With boost over 10Lb on EB 6 advance comes back real quick.. At 18Lb max advance is 9* ....My compression is very low, at 20Lb boost it has 22* though with new exhaust this will change as boost will raise alot quicker....
Over 440 rwkw at a lower boost level....Optimum tune with Motec crank angle senser etc happening soon....
But you realy need to take it to guys that work on ricers as most of them are turbo's...Adam at Justengine management or Matt at The Hittman Penrith...His workshop is beside "race fabrications" now, so there's nothing hat can't be done....

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Mon Jul 17, 2006 11:18 pm 
Technical Contributor
Offline
User avatar

Posts: 2799

Joined: 6th Nov 2004

Gallery: 7 images

Ride: Falcon

Location: Sydney
NSW, Australia

Thanks for that!
Basically along the lines of what I was thinkging.

Cheers

 

_________________

;++JustForDimSim++;

Cheap, fast and reliable.. choose 2.

Top
 Profile  
 
 
Posted: Wed Jul 19, 2006 8:24 pm 
Getting Side Ways
Offline
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

When tuning my Wolf I spent alot of time fine tuning 3000 to 4000 as this is where the turbo is just hitting max boost and the motors torque is also maxing... timing is critical here as you would expect
Top
 Profile  
 
 
Posted: Thu Jul 20, 2006 12:56 am 
Technical Contributor
Offline
User avatar

Posts: 2799

Joined: 6th Nov 2004

Gallery: 7 images

Ride: Falcon

Location: Sydney
NSW, Australia

Yeah, it'll be on the dyno, coming onto boost, and max boost and so forth should be achieveable without recieving a ticket (Im sure you guys know what thats like lol).

Thanks CHEF, I expected timing to be critical everywhere but idle on forced cars, but moreso there yeah.


Cheers

 

_________________

;++JustForDimSim++;

Cheap, fast and reliable.. choose 2.

Top
 Profile  
 
 
Posted: Thu Jul 20, 2006 12:46 pm 
Stock as a Rock
Offline

Age: 31

Posts: 160

Joined: 28th Mar 2005

Ride: EF Falcon Futura

Location: Brisbane
QLD, Australia

Chef, With every tune ive had i get most pinging between 3-4000rpm. Is there any reason for this?

Anyone else notice this?
Top
 Profile  
 
 
Posted: Thu Jul 20, 2006 1:44 pm 
Getting Side Ways
Offline

Age: 33

Posts: 868

Joined: 23rd Sep 2005

Ride: eb falcon

Location: kadina
SA, Australia

thats because that is the peak torque are, which means, that is the range where you have the highest cylinder pressures, if too much ign advance there you will get pinging, easier than you will anywhere else

 

_________________

EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 7 posts ] 

Who is online

Users browsing this forum: Ed5sp and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sun Dec 17, 2017 9:20 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names