I'm squirting - Page 4 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 05-17-2007, 06:34 PM   #61
Elite Member
iTrader: (14)
 
Join Date: Mar 2006
Location: Edmonton, AB
Posts: 4,921
Total Cats: 0
Default

jayc72 is offline   Reply With Quote
Old 05-17-2007, 06:54 PM   #62
Senior Member
 
Join Date: Oct 2005
Location: Knoxville
Posts: 1,168
Total Cats: 0
Default

that's cool, have you had any luck with closed loop? I never could get it working. open loop works real well though.

a tps is really only useful if you have a tiny turbo you don't want boosting all the time.
Al Hounos is offline   Reply With Quote
Old 05-17-2007, 06:59 PM   #63
Ben
Supporting Vendor
Thread Starter
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

i'll have specifics later, with pretty charts and all, after I get home. I will go ahead and tell you we broke 250 rwhp on the dynapack on a rich tune @ 14 psi
Ben is offline   Reply With Quote
Old 05-17-2007, 07:01 PM   #64
Senior Member
 
Join Date: Oct 2005
Location: Knoxville
Posts: 1,168
Total Cats: 0
Default

awesome.... it'll be exciting to see a what a dyno-tuned turbo timing map looks like.
Al Hounos is offline   Reply With Quote
Old 05-17-2007, 07:24 PM   #65
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

need dyno time now!!!!
Braineack is offline   Reply With Quote
Old 05-17-2007, 07:48 PM   #66
Senior Member
iTrader: (12)
 
Join Date: Nov 2005
Location: Murfreesboro, TN
Posts: 596
Total Cats: 3
Default

Wow!, great numbers Ben. I really got to get that clutch and diff in my car so I can up the boost. I am way behind with my 180 hp at 7psi. :gay:

Are you on the stock diff still? or have you upgraded to a 7" unit?
sbrian2 is offline   Reply With Quote
Old 05-17-2007, 08:33 PM   #67
Supporting Vendor
iTrader: (5)
 
Join Date: Jun 2006
Location: Duluth, GA 30097
Posts: 798
Total Cats: 0
Default

227.1 wtq / 255.4whp were the final numbers with a spike to 15psi at about 4000 followed by a pretty even 14psi to redline.


Here's the chart showing what we could do with the MBC (dotted lines) versus the MSPNP's EBC.




How's it feel Ben? Felt good to me
FoundSoul is offline   Reply With Quote
Old 05-17-2007, 08:38 PM   #68
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

looks great, what injectors are you running ben?
Mach929 is offline   Reply With Quote
Old 05-17-2007, 08:50 PM   #69
Ben
Supporting Vendor
Thread Starter
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

RC 440s. I'll have datalogs later...

Didn't get a chance to open her up on the way home. Bumper to bumper the WHOLE trip. I did make the BOV scream for the ladies under a large bridge though. Low speed cruising and stop n go, the MS did great.

Gonna go for a ride after waiting another 30 minutes for traffic to die down.

BTW, the dyno operator Scott took the car for a ride and came back grinning like a chesire cat.


Ben
Ben is offline   Reply With Quote
Old 05-17-2007, 08:55 PM   #70
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,237
Total Cats: 290
Default

Give us some details on the tuning process!
m2cupcar is online now   Reply With Quote
Old 05-17-2007, 09:01 PM   #71
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

440s huh i'm curious on your duty cycles
Mach929 is offline   Reply With Quote
Old 05-17-2007, 09:37 PM   #72
Senior Member
iTrader: (12)
 
Join Date: Nov 2005
Location: Murfreesboro, TN
Posts: 596
Total Cats: 3
Default

Which downpipe are you running? It looks like my car spools a little before yours and I'm wondering if that is why. I have full boost at around 3250 rpm with the turbo tony dp.
sbrian2 is offline   Reply With Quote
Old 05-17-2007, 10:55 PM   #73
Supporting Vendor
iTrader: (5)
 
Join Date: Jun 2006
Location: Duluth, GA 30097
Posts: 798
Total Cats: 0
Default

Quote:
Originally Posted by Mach929 View Post
440s huh i'm curious on your duty cycles

Just looked this over, and the datalogs are reporting 72% but that's not right. The REQ_FUEL we used is off a bit from what it should have been which won't hurt anything, but will make the DC reading inaccurate unfortunately. Doing the math though these injectors are maxed out for sure... IMO I'd go with 550's to put this kind of power down with stock fuel pressure and keep the DC's in a good spot.

The REQ_FUEL is off due to an oversight... we tweaked it earlier this week as a quick fix to get the car driveable before tuning, and should have set it back today before tuning to be honest... not a big deal but it does effect the DC readings in the datalog. I have to take the blame here... I honestly thought the map we started with this morning was the base map I setup for 440's from BEFORE we tweaked the REQ_FUEL as a quick fix, and I should have double checked it...
FoundSoul is offline   Reply With Quote
Old 05-18-2007, 03:24 AM   #74
Junior Member
iTrader: (1)
 
Join Date: Apr 2006
Location: Kirkland, WA
Posts: 239
Total Cats: 0
Default

Quote:
Originally Posted by FoundSoul View Post
Just looked this over, and the datalogs are reporting 72% but that's not right. The REQ_FUEL we used is off a bit from what it should have been which won't hurt anything, but will make the DC reading inaccurate unfortunately. Doing the math though these injectors are maxed out for sure... IMO I'd go with 550's to put this kind of power down with stock fuel pressure and keep the DC's in a good spot.

The REQ_FUEL is off due to an oversight... we tweaked it earlier this week as a quick fix to get the car driveable before tuning, and should have set it back today before tuning to be honest... not a big deal but it does effect the DC readings in the datalog. I have to take the blame here... I honestly thought the map we started with this morning was the base map I setup for 440's from BEFORE we tweaked the REQ_FUEL as a quick fix, and I should have double checked it...

Can you post correct injector settings for RC 440s? I might be installing mine this weekend (2000 motor).

-Mike
grippgoat is offline   Reply With Quote
Old 05-18-2007, 05:05 AM   #75
Ben
Supporting Vendor
Thread Starter
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

The MS does a great job on the power runs. Unfortunately everywhere I went yesterday evening I got stuck in awful traffic and/or behind old ladies. Coupled with the fact that the car is so fast now, I run out of room quickly. Maybe tomorrow I can get a long full WOT pull in.

That's too bad about the IJDC. I have to take blame there, too. Afterall, I was the guy who made the car run on 440s by moving req fuel until it idled well It would have been nice to know real world duty cycle. Before I used those injectors I calculated 85% max dc @ 250 horse. We did hit a little more than 250 and we are running a tad richer than I calculated for though, so maybe it's upwards of 90%.

Brian, 2.5" tony dp transitioning to 2.25". I'd be sure that your car has a better FMIC design and larger exhaust. 6" rear. Still haven't had a good WOT run, but so far the car pulls hard but the gears are short. I actually just got an offer on my 7" hybrided miata/rx7 LSD swap, but me thinks at this point it would be smarter to keep it. On the dyno we did a wastegate basline run before setting the EBC, wg 6 psi did just shy of 170 rwhp. As a marker, 3k miles ago with the bandaids I hit 165 rwhp on 7 psi on the dynojet in a COLD room.

Last edited by Ben; 05-18-2007 at 05:23 AM.
Ben is offline   Reply With Quote
Old 05-18-2007, 09:20 AM   #76
Senior Member
iTrader: (12)
 
Join Date: Nov 2005
Location: Murfreesboro, TN
Posts: 596
Total Cats: 3
Default

Quote:
Originally Posted by Ben View Post
Brian, 2.5" tony dp transitioning to 2.25". I'd be sure that your car has a better FMIC design and larger exhaust. 6" rear. Still haven't had a good WOT run, but so far the car pulls hard but the gears are short. I actually just got an offer on my 7" hybrided miata/rx7 LSD swap, but me thinks at this point it would be smarter to keep it. On the dyno we did a wastegate basline run before setting the EBC, wg 6 psi did just shy of 170 rwhp. As a marker, 3k miles ago with the bandaids I hit 165 rwhp on 7 psi on the dynojet in a COLD room.
Pretty much the same as me on exhaust, my FMIC may be a little better though. You better hang onto to the 7" RX7 unit because you are gonna need it at those power levels. Your diff has to be a grenade right now.
sbrian2 is offline   Reply With Quote
Old 05-18-2007, 09:38 AM   #77
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,237
Total Cats: 290
Default

Explain why the MBC wouldn't hold the peak boost
Did you make any adjustments to the "aggressive" PnP IGN map?
Richest AFR was 11.5:1 at peak boost - 16psi?
m2cupcar is online now   Reply With Quote
Old 05-18-2007, 09:46 AM   #78
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

Probably the same old story with the greddy wastegate....needs a helper spring.

yeah ben, we need answers!!!! got a datalog of the last few dyno pulls...I'd like to look over them in MLV.
Braineack is offline   Reply With Quote
Old 05-18-2007, 10:07 AM   #79
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,237
Total Cats: 290
Default

Yeah, get 'em to brainy so he can start building the datalogging and tuning FAQ
m2cupcar is online now   Reply With Quote
Old 05-18-2007, 10:10 AM   #80
Elite Member
iTrader: (5)
 
Atlanta93LE's Avatar
 
Join Date: Sep 2006
Location: Marietta, GA
Posts: 2,198
Total Cats: 1
Default

This stuff is exciting...but I'm in STL and won't be back to keep working on my car until Monday :(
Atlanta93LE is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Complete BEGI S3 NB Kit, Full Enthuza 3" Exhaust, ACT HD Clutch, MS2 PNP, Wideband kronikker Miata parts for sale/trade 17 10-06-2015 11:18 PM
Bentwrench's build thread Bentwrench Build Threads 5 05-05-2009 12:16 PM
My parts list/questions. First turbo build. motorvated DIY Turbo Discussion 24 11-21-2008 04:22 PM
Mega Squirt what the difference blue turbo mx5 MSPNP 1 10-11-2008 11:45 PM
I'm Squirting! 2000SE Parallel Install M-Tuned MEGAsquirt 20 08-08-2008 10:49 AM


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 01:13 PM.