Highest boost on stock timing - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 02-03-2007, 06:12 PM   #21
Senior Member
iTrader: (2)
 
Join Date: Feb 2006
Location: Mesa, AZ
Posts: 999
Total Cats: 0
Default

Im sure it was less than optimal, but the fact is it worked at that high of a boost level without knocking.. Im sure if he had access to a dyno he could have tuned it to use less WI, and get more power at even a lower boost PSI...

But who else here has daily drove a NON intercooled 12PSI car with no timing retard, and had it stay together very long?


Seems that everyone is always worried about "optimum performance" Where in reality that is hard to acheve, and expensive. And having a less that optimum setup can get you all the performance you need/want...

After looking at all of the DSM turbo parts i have collected and seen, there setups are FAR from optimum, but they sold a ton of them and they stayed together.


Quote:
Originally Posted by Fritch View Post
doesn't spraying that much water volume eat up valuble space for a place that would otherwise be air and fuel? Wouldn't that be somewhat less than optimal?
adbradley is offline   Reply With Quote
Old 02-03-2007, 06:18 PM   #22
Senior Member
 
Join Date: Mar 2005
Location: Holiday, FL
Posts: 563
Total Cats: 0
Default

thats not really what I meant, maybe optimal was a bad choice of wording. I mean isn't that basically drowning out the air so much that running 12psi would be unecessary? Like he could have run less water and had more air but at a cooler temp from less boost so as not to have needed so much water? Does that make sense?
Fritch is offline   Reply With Quote
Old 02-03-2007, 06:43 PM   #23
Senior Member
iTrader: (2)
 
Join Date: Feb 2006
Location: Mesa, AZ
Posts: 999
Total Cats: 0
Default

dont know, dont have any hard numbers to go off of, he was doing all of his tuning seat of the pants...
adbradley is offline   Reply With Quote
Old 02-04-2007, 02:06 AM   #24
Junior Member
 
Join Date: Nov 2006
Location: Australia
Posts: 120
Total Cats: 0
Default

Quote:
Originally Posted by sickmiata09 View Post
I am also planning on running 460's with a s-afc. Why couldnt you adjust the afc in order to get mid- range and drivability back
i think that was probably because the s-afc doesn't have enough tuning resolution to get an optimal tune across the load range. i think it can only do about 15 or 20 load points right? and then it interpolates and smooths the curve between these points.

i am using a jaycar digital fuel adjuster with my 460's and that has about 70 load points, so the resolution is MUCH better, and my car runs nice and smooth.

http://autospeed.drive.com.au/cms/A_2418/article.html
http://autospeed.drive.com.au/cms/A_2420/article.html

however, as good as this is, i am building a megasquirt (almost finished) which will supersede this in my car. that will give me timing control as well, and a few other goodies.
fatty is offline   Reply With Quote
Old 02-04-2007, 05:01 AM   #25
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

Yeah i have backed the spray off before and tried to run it but ran into knock before trying ot pas 10 psi so i just upped my pump pressure a few psi and then knock issues where resolved and power went up. I didnt raise the boost and keep it that way to loose power it made more power and i did my best ot optimize it on all fronts. For the most part i was fuel limited. BTW i was spraying 20% in relation to my fuel laod not my airflow laod in terms of that i wsa at maybe 5% given my pump pressures and the jet ratings. So yeah i wasnt drowing it the plugs stayed nice and happy and the boost was nice and snappy. Hell ASk boostinsteve how he likes his he doesnt retard timming either. i hope as more people try it and get similiar results that it will become abit more mainstream and the price will go down but well see.
magnamx-5 is offline   Reply With Quote
Old 02-04-2007, 12:51 PM   #26
Junior Member
Thread Starter
 
Join Date: Jan 2007
Location: Philadelphia, Pa
Posts: 136
Total Cats: 0
Default

Fatty I pm'd you about that jaycar digital fuel adjuster
sickmiata09 is offline   Reply With Quote
Old 02-04-2007, 01:15 PM   #27
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

he is in australia so prepare to wait the jay car is a pretty good setup he posted alink in his first thread on it i was interested, in it for a while.
here it is https://www.miataturbo.net/forums/sh...66&postcount=7
magnamx-5 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
FS/FT: 03.5 Mazdaspeed Protege leatherface24 Cars for sale/trade 15 10-16-2015 12:35 PM
Bp5a swap NA8 Will_da_beast Engine Performance 1 09-14-2015 08:06 PM
E-Manage Base Maps faviles5566 ECUs and Tuning 0 09-04-2015 12:50 PM
E-Manage Base Maps faviles5566 ECUs and Tuning 0 09-04-2015 12:50 PM


Thread Tools

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:14 PM.