2002 VVT swap into 1990 NA with MS3 - Page 8 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Build Threads Building a motor? Post the progress here.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-27-2014, 08:21 PM   #141
Junior Member
Thread Starter
 
Join Date: Apr 2011
Posts: 194
Total Cats: 10
Default

No couldn't get the pulley combo right so it's a new 94-97 alternator.

MS shows volts shooting up to 19+. On heavy throttle seems to increase this.
oregonmon is offline   Reply With Quote
Old 10-27-2014, 11:49 PM   #142
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Yeah, '94-'97 alternator. I wouldn't say high throttle does anything, but it seems to shoot to 19+ volts at high RPM, then struggle to get back to 14. A quick off/on fixes it, but I've advised him to get it tested at the parts store he got it from, they're known to be bad out of the box.

Who wants to tell me what screen I look at to verify the knock sensor is working correctly?
curly is offline   Reply With Quote
Old 10-28-2014, 01:47 PM   #143
Junior Member
Thread Starter
 
Join Date: Apr 2011
Posts: 194
Total Cats: 10
Default

Dyno time is scheduled for next Monday at 10am.
oregonmon is offline   Reply With Quote
Old 10-30-2014, 02:04 AM   #144
Junior Member
Thread Starter
 
Join Date: Apr 2011
Posts: 194
Total Cats: 10
Default

Took the alternator back to OReilly's today for a test, sure enough it failed.
Replaced it and got it back in. Hopefully I'll take it out tomorrow to ensure no funny business. I failed to ask them to check it while I was there.

Ehh, it was rebuilt in Mexico.
oregonmon is offline   Reply With Quote
Old 10-30-2014, 02:12 AM   #145
Senior Member
iTrader: (3)
 
Join Date: Nov 2011
Location: Beaverton, OR
Posts: 737
Total Cats: 30
Default

Mexico is known for its high quality automotive electrical components.
greddygalant is offline   Reply With Quote
Old 10-30-2014, 12:02 PM   #146
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,202
Total Cats: 2,584
Default

18psi is offline   Reply With Quote
Old 11-04-2014, 10:13 AM   #147
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Since Ryan's being slow to upload this, I will.

These are all the runs we did, started at 132/122.5 and finished with nearly 136/124.5. Torque is at least 95% of that from about 2250 on.

Attached Thumbnails
2002 VVT swap into 1990 NA with MS3-ryansdyno_zps900a06bb.jpg  
curly is offline   Reply With Quote
Old 11-04-2014, 11:00 AM   #148
Senior Member
iTrader: (3)
 
Join Date: Nov 2011
Location: Beaverton, OR
Posts: 737
Total Cats: 30
Default

How about you give the good people of MT more detail like fuel, mods, etc... :P
greddygalant is offline   Reply With Quote
Old 11-04-2014, 11:30 AM   #149
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

What? It's in the thread.

93, obx header, high flow cat, racing beat exhaust, K&N intake, butterfly's deleted in a msm intake manifold, shaved head, rev ms3, all pulls done in 4th.
curly is offline   Reply With Quote
Old 11-04-2014, 02:02 PM   #150
Senior Member
iTrader: (14)
 
Join Date: Jan 2007
Location: Murfreesboro,TN
Posts: 1,279
Total Cats: 53
Default

Quote:
Originally Posted by curly View Post
What? It's in the thread.

93, obx header, high flow cat, racing beat exhaust, K&N intake, butterfly's deleted in a msm intake manifold, shaved head, rev ms3, all pulls done in 4th.
But what brand underwear was the operator wearing at the time? Boxers or briefs?
Midtenn is offline   Reply With Quote
Old 11-04-2014, 02:54 PM   #151
I take big bites
iTrader: (1)
 
turbofan's Avatar
 
Join Date: Sep 2010
Location: Hurricane, UT
Posts: 6,930
Total Cats: 526
Default

Miatas need boost.

Oh yeah, that's why we're here. raspberries for boostless thread.
turbofan is offline   Reply With Quote
Old 11-04-2014, 03:02 PM   #152
Junior Member
Thread Starter
 
Join Date: Apr 2011
Posts: 194
Total Cats: 10
Default

Quote:
Originally Posted by Midtenn View Post

But what brand underwear was the operator wearing at the time? Boxers or briefs?
Hanes boxers. Paisley.
oregonmon is offline   Reply With Quote
Old 11-04-2014, 05:44 PM   #153
SADFab Destructive Testing Engineer
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 17,999
Total Cats: 1,466
Default

Whats a dyno tune at English racing cost? I saw 100/hr. How long did it take to tune oregonmons?
aidandj is offline   Reply With Quote
Old 11-04-2014, 05:47 PM   #154
Junior Member
Thread Starter
 
Join Date: Apr 2011
Posts: 194
Total Cats: 10
Default

Yes we only took 1 hour. And that's with Josh tuning but Aaron who runs the dyno was there to offer free advice.
4 pulls.
oregonmon is offline   Reply With Quote
Old 11-04-2014, 05:48 PM   #155
I take big bites
iTrader: (1)
 
turbofan's Avatar
 
Join Date: Sep 2010
Location: Hurricane, UT
Posts: 6,930
Total Cats: 526
Default

The $100/hr is for dyno TIME I believe. Josh does the tuning on their dyno.

Josh, why don't we start using KO's dyno? Much cheaper... but different numbers I guess.
turbofan is offline   Reply With Quote
Old 11-04-2014, 06:10 PM   #156
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Yes, $100/hr. That is only for dyno time, not tuning. I do the tuning, and since I bring him interesting projects that aren't Evos or Subarus, he gives me his advice. We've found the BP family to be incredibly happy at 28* at redline, this has been the case +/- a degree with Lexi, Laz (1.6), and now Ryan's.

I've struggled to spend more than an hour on any car, be it Laz's 1.6, my 1.6t, Laz's 1.8t, Lexi, and now Ryan's VVT. He said that was mostly due to me showing up with a decent fuel map and safe spark map.

It takes one pull to verify good fueling and establish a base line, and a 2nd to pull 5 degrees to see if we're above or below MBT. The 3rd pull depends on the results of pull #2, if we dropped power, we go back above the previous numbers, if we didn't drop much power we'll keep going until we do, and sadly that particular setup won't make any more power than the base line.

That's only happened once though, with Lexi's restrictive 180* bend in the intake.

Typically I'm done in 4 pulls, then run a little bit to test out flat shift, and accel enrichments.

KO should be the same numbers, as they're the same Dynojet, just 2wd insted of AWD. You can look up Kris's dyno results of a '94 vvt swapped Miata, it was unimpressive, but sounds like a lot of the same mods, except with a Hydra. A good 8hp and 7ft/lbs down from the engine I built.

I dunno why we haven't started using KO more, besides the free advice Aaron gives us, plus with Ryan's VVT that was originally destined for Laz, we really wanted the most accurate back to back test.

Since you've exclusively dyno'd at KO, I'd suggest you keep going there, especially once you have an MS that I can actually tune.
curly is offline   Reply With Quote
Old 11-06-2014, 12:33 PM   #157
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,110
Total Cats: 518
Default

Finally got Ryan to send me the dyno sheet we had printed at ER. This one compares two of Ryan's pulls (both 135hp), Lazarus' old 1.6 setup (123hp) and my friend Nial's 1.6 (115hp).



You can see we stopped Nail's car and the VVT at a reasonable 6700ish rpm, there isn't much more to be had. Martin had us wring Laz out to 7250, which means the tach on the dash was probably reading 7500.
Attached Thumbnails
2002 VVT swap into 1990 NA with MS3-0a7a5c7a-2a8e-4077-b2ba-62ac85b289eb_zpsockusox4.jpg  
curly is offline   Reply With Quote
Old 11-06-2014, 01:21 PM   #158
Senior Member
iTrader: (3)
 
Join Date: Nov 2011
Location: Beaverton, OR
Posts: 737
Total Cats: 30
Default

All of the revs all of the time, I would have revved it to 8k if you had let me...
You know you can ask aaron to email you the dyno files and you can play with them in the dynojet software.
greddygalant is offline   Reply With Quote
Old 11-06-2014, 01:23 PM   #159
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

healthy motor is healthy.
Braineack is offline   Reply With Quote
Old 11-06-2014, 01:44 PM   #160
I take big bites
iTrader: (1)
 
turbofan's Avatar
 
Join Date: Sep 2010
Location: Hurricane, UT
Posts: 6,930
Total Cats: 526
Default

Am I reading this correctly? An extra 45 ft lbs at 2500 rpm?

OK noob dyno read fail. 25 ft lbs at 2500 rpm?
turbofan is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Buzzing from driver side of engine bay? (MS3 install) nick470 MEGAsquirt 7 06-16-2017 02:53 PM
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Noob to Miataturbo from MA JxPhan Meet and Greet 3 10-02-2015 03:17 AM
wiring wideband ground to battery terminal btabor ECUs and Tuning 10 09-28-2015 06:33 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 11:29 PM.