Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion > Diesel Performance Tuning

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-10-2018, 03:36 PM
Registered User
 
Join Date: Feb 2017
Location: SE Michigan
Posts: 312
om606 mild build info

Currently have a 98 e300 with a 3" turbo back exhaust and rocketchip stage 2 tune. Can i swap in a hx35 without my EGT skyrocketing?

Reply With Quote
  #2  
Old 06-10-2018, 06:19 PM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Posts: 6,025
EGT's are a function of timing and A/F ratio. Swapping in a bigger turbo won't increase power any if you don't turn up the fuel too. If the A/F ratio is good, your EGT's will be ok too. EGT rises when timing is late, injection duration is too long (making timing late), or excess fuel is injected for the air in the combustion chamber.
Reply With Quote
  #3  
Old 06-10-2018, 11:47 PM
Registered User
 
Join Date: Feb 2017
Location: SE Michigan
Posts: 312
so you have no input or first hand experience modding a 606 then?
Reply With Quote
  #4  
Old 06-11-2018, 12:16 AM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Posts: 6,025
The turbo 606 isn't that different from the turbo 603 mechanically other than 24V vs 12V. You still have a mechanical injection pump, although with electronic controls for the rack instead of a mechanical throttle linkage. You have a fixed geometry turbo with a vacuum operated wastegate controlled by the ECU. You have an EGR valve. You have an ECU that controls the EGR, the electronic throttle, and the boost control. Fuel enrichment is performed via a pressure transducer and controlled electronically by the ECU instead of mechanically by the ALDA. On a stock system, the chipped ECU changes the electronic throttle PIDs, the EGR control loop, and the wastegate controls.

Your fuelling is still a function of the internal setting of the mechanical part of the injection pump and your injection duration is a function of the size of the pumping elements in the injection pump. No mod chip is going to change those parts of the equation, the electronic parts of the IP can only respond to the limits of the mechanical settings.

Swapping in a different turbo may change your max boost and it may change the spool time, but unless you have a way to increase the fuelling of the IP, you won't make any more power. The ECU should be responding to boost pressure in the manifold. With the stock or modified tune, you should not have issues with EGT's even if you're making more boost.
Reply With Quote
  #5  
Old 06-11-2018, 11:15 AM
Bio Brewer
 
Join Date: Apr 2010
Location: Napa, CA
Posts: 301
Normal HX35 like from the dodge trucks is too big for the stock pump. Not saying it won't work but it'll be hella slow to spool unless you get the IP built. HX32 might be good. HY35 would spool quicker but probably not an optimal choice for this setup.

plenty of info on this. Check out the other super forums and there is a facebook group for the super forum where people share info.
__________________
'98 E300 Turbo "Juliette"
'85 Federal 300TD
Reply With Quote
  #6  
Old 06-12-2018, 01:05 PM
mbolton1990's Avatar
Registered User
 
Join Date: May 2013
Location: NC
Posts: 376
I bet a Garrett .57 trim T3/T4 turbo would be a great fit, quick spool and capable of 400ft/lbs.
__________________
04 Sprinter 3500 - 310k
"Ich mag die Dieselgeräusche"
https://youtu.be/YjrxHqNy5CQ

Last edited by mbolton1990; 06-12-2018 at 01:37 PM.
Reply With Quote
  #7  
Old 06-12-2018, 10:27 PM
awsrock's Avatar
Registered User
 
Join Date: May 2008
Location: Tinley Park, IL
Posts: 642
As far as I know, the stock pump can max out at 90cc, maybe 100. I dont know what Stage 2 entails but stock fueling is somewhere around 60-65cc. So you're looking at 270ish hp max? The stock turbo will barely he able to make enough air (air! Not boost) to produce that power. You also have a tiny tiny turbine housing. So going to an HX35 will give you more top end due to more air and a huge increase in your ability to flow air OUT of the engine. The tradeoff will be later spool. Compared to the stock turbo it will be significant, but not necessarily undriveable. It all depends on what you want from the car. EGTs should not increase. If you push the stock turbo beyond its limits the heated air will of course result in higher EGTs
__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k
Reply With Quote
  #8  
Old 06-13-2018, 11:34 PM
Registered User
 
Join Date: Feb 2017
Location: SE Michigan
Posts: 312
Currently debating the cost vs fun if i have the ip built up. I am very familar with custom turbocharging gasoline engines. Look up boosted jeep on youtube, but diesel is a bit different. From the little i have read so far for the om606 i need 3 parts. Bigger ip elements, bigger turbo and modified tune. I have a spare engine and manifold so fabbing is the easy part. Question is where is the streetable/daily driver fun rolling coal level vs burning up the trans.
Reply With Quote
  #9  
Old 06-15-2018, 06:08 PM
Registered User
 
Join Date: Dec 2011
Location: Norwalk, CT
Posts: 236
https://www.dieselpumpuk.com/shop/turbochargers/budget-turbo-kit/
Reply With Quote
  #10  
Old 10-16-2018, 10:31 PM
jabroni tig weldor
 
Join Date: Oct 2018
Location: whales vagina
Posts: 43
you need to buy elements and get pump work done to worry about melting stuff. all the stock crap is pretty safe to use especially if your throwing more air at it. the hx wont make you run hot, likely you'll run cooler cause its bigger than the mercedes turbo on he exhaust side, i doubt youll get it to fully spool tho aka you probably wont have enough fuel to use it.

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 01:57 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page