Welcome Guest ( Log In | Register )

> 550 injectors
lawngsx
post Dec 15 2004, 01:07 AM
Post #1


Info Seeker
**

Group: Members
Posts: 83
Joined: 22-March 04
Member No.: 261



I am currently running an EVO III B16g and the stock 450s, uip, GM MAF-T, 3" exhaust, Walbro 255, etc. Well as you may have guessed, I have maxed out the 450s and am now looking for what to upgrade to. The options I'm looking at are 550s and 680s from either FIC or PTE. I'd like to stick with the same turbo for a while, even after a built motor goes in. Now the question is, will I max out the 550s with this turbo (running ~25psi)? I have a friend here at school that has a B16g, FMIC, etc and 550s and is convinced he has maxed them out at ~22psi.

Also, if I were to go with the 6xx injectors, would I need a burned chip to compensate for the idle or would I be able to iron things out with the MAF-T?


--------------------
Eric

94 GSX
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
awd4kicks
post Dec 16 2004, 04:33 PM
Post #2


DSMCentral Godfather
********

Group: Admin
Posts: 3,823
Joined: 10-January 01
From: Washburn
Member No.: 26



Lawn...it sounds close.

With that info I know that 550's could be maxed out with a 16g. There is a lot of useable injector under that max though. It's your decision, but I would go big and tune down.

Plus larger injectors allow you to tune your fuel control down such that it makes the ECU think the MAF is reading less air than it is truely flowing which can eliminate Fuel cut in the most effective way I've seen to date. If your the Wortdogg with custom EPROMs you don't need this kind of injector voodo but for the rest of us it's a blessing!


--------------------
In Loving memory of David T Crebo
Greatness comes from the most unexpected places!
user posted image
Go to the top of the page
 
+Quote Post

Posts in this topic
- lawngsx   550 injectors   Dec 15 2004, 01:07 AM
- - wortdog   680's are perfect for an EVO III 16g, and the ...   Dec 15 2004, 01:59 AM
- - wortdog   680's with a stock fuel pressure and the stock...   Dec 15 2004, 02:28 AM
- - wortdog   QUOTE (spyonu2007 @ Dec 15 2004, 08:30 AM)all...   Dec 15 2004, 02:53 AM
- - turbohcar   Buschur says 400hp, 500hp if you shot peen the rod...   Dec 15 2004, 08:22 AM
- - natedogg   With my 650's 80% duty cycle is about the most...   Dec 15 2004, 11:15 AM
- - ncgalant   The setup I had was built for 500whp and could hav...   Dec 15 2004, 12:25 PM
- - lawngsx   QUOTE The duty cycle is 110% If that helps any Go...   Dec 15 2004, 05:48 PM
- - awd4kicks   Wow! Thanks for using my crude HP for compari...   Dec 15 2004, 06:01 PM
- - wortdog   I don't know if 'honored' is quite the...   Dec 15 2004, 08:16 PM
- - JMoushon   Interesting how far past 100% idc these cars go. ...   Dec 15 2004, 09:19 PM
- - wortdog   Depends on how the duty cycle is measured, if its ...   Dec 15 2004, 09:51 PM
- - awd4kicks   QUOTE (wortdog @ Dec 16 2004, 02:16 AM)I don...   Dec 15 2004, 10:23 PM
- - natedogg   QUOTE (wortdog @ Dec 15 2004, 09:51 PM)I have...   Dec 16 2004, 08:21 AM
- - lawngsx   Anyone have an answer for this? Can I max out 550s...   Dec 16 2004, 02:35 PM
- - xian 1g   QUOTE 550's will work fine combined with a hig...   Dec 16 2004, 02:58 PM
- - wortdog   There are a couple of people on DSMTuners that hav...   Dec 16 2004, 03:01 PM
- - lawngsx   That's what I was looking for, thanks guys   Dec 16 2004, 04:24 PM
- - awd4kicks   Lawn...it sounds close. With that info I know tha...   Dec 16 2004, 04:33 PM
- - JMoushon   To me, a bigger benefit that fuel cut control is t...   Dec 16 2004, 05:27 PM
- - lawngsx   Sounds good. The next step is, with 680s am I goin...   Dec 16 2004, 06:20 PM
- - awd4kicks   With bigger injectors and fuel control you get mor...   Dec 16 2004, 10:31 PM
- - natedogg   QUOTE (lawngsx @ Dec 16 2004, 06:20 PM)Sounds...   Dec 17 2004, 08:13 AM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: 29th April 2026 - 10:31 PM
Design by: IPB Download & eBusiness Discussions