just got back from the dyno - 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 05-03-2012, 04:52 PM   #1
Junior Member
Thread Starter
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 402
Total Cats: 46
Default just got back from the dyno

im a little disappointed in the numbers but i am scared to try to push the completely stock EGT BP. how much further can i expect to push the stock rods before they decide to leave my block? rev limit is set to 7300

edit: im sure specs would be nice...
95 EGT block
evo3 big 16g turbo
ebay(actual dimentions) 19x7.25x3.5 in and out tube and fin fmic
custom 4:1 exhaust manifold made from an EGT stock header manifols that was cut up
2.5" turbo back exhaust, no cat 2 cherry bombs.
38mm open dump waste gate
gutted vics manifold




i have an msq of pull 2 and pull 4 that ill upload as soon as i get it off my laptop
Attached Thumbnails
just got back from the dyno-img_20120503_114115.jpg  

Last edited by fastivab6tg25mr; 05-03-2012 at 05:03 PM.
fastivab6tg25mr is offline   Reply With Quote
Old 05-03-2012, 05:21 PM   #2
Elite Member
iTrader: (11)
 
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,382
Total Cats: 43
Default

Wow dude, you've just taken a 20 second 1/4 car down to like the 12s and you're disappointed???

Stock rods supposedly snap around 250hp area.

That thing HAS to be a crazy son of a bitch!!!
elesjuan is offline   Reply With Quote
Old 05-03-2012, 05:34 PM   #3
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,010
Total Cats: 583
Default

Dynojet. That's like 80HP on a Mustang. LOL.

JK. Good numbers.
hornetball is offline   Reply With Quote
Old 05-03-2012, 08:59 PM   #4
Free Moustache Rides
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

I bet that's fun

What was your boost level for these pulls? Pics of setup or link to a build thread? I'll be tossing my Evo3 setup on the dyno in the next couple of months so I'm curious.
matthewdesigns is offline   Reply With Quote
Old 05-03-2012, 09:00 PM   #5
Hittin' Boost & Cones
iTrader: (2)
 
240_to_miata's Avatar
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,572
Total Cats: 11
Default

nice #'s

FYI My 5 spd and rods both crapped out at 225 rwhp with street/autox driving.
240_to_miata is offline   Reply With Quote
Old 05-03-2012, 09:03 PM   #6
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Uh how mich boost is that
Faeflora is offline   Reply With Quote
Old 05-03-2012, 10:59 PM   #7
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

15psi.
on ewg spring no mbc.
with 15* at peak slowly tapering up.

this car hauls like a raped ape
18psi is offline   Reply With Quote
Old 05-04-2012, 03:47 AM   #8
Junior Member
Thread Starter
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 402
Total Cats: 46
Default

^what he said. lol msq attached
Attached Files
File Type: msq 05032012.msq (36.7 KB, 134 views)
File Type: msl dyno 2.msl (46.4 KB, 97 views)

Last edited by fastivab6tg25mr; 05-04-2012 at 04:08 AM.
fastivab6tg25mr is offline   Reply With Quote
Old 05-04-2012, 04:44 AM   #9
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

yay gratzi

turn to 10psi or expect blowage
Faeflora is offline   Reply With Quote
Old 05-04-2012, 10:26 AM   #10
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,244
Total Cats: 291
Default

Y torque fail at life after peak? Tiny intake manifold?
m2cupcar is offline   Reply With Quote
Old 05-04-2012, 10:50 AM   #11
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

if that block uses the same rods as the BP, then you're at the upper limits.
Braineack is offline   Reply With Quote
Old 05-04-2012, 11:37 AM   #12
Junior Member
Thread Starter
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 402
Total Cats: 46
Default

Quote:
Originally Posted by Faeflora View Post
yay gratzi

turn to 10psi or expect blowage
now im worried :| its been at 15psi for over a year as my daily with drag strip almost every wednesday and street fun every weekend... i beat the crap out of this thing... ill start looking for rods and pistons...

Quote:
Originally Posted by m2cupcar View Post
Y torque fail at life after peak? Tiny intake manifold?
its an EGT vics manifold that has had the upper section gutted into a plenum. seemed large to me but the lower section/runners that go into the head are still stock.
fastivab6tg25mr is offline   Reply With Quote
Old 05-07-2012, 05:13 PM   #13
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,678
Total Cats: 1,561
Default

With your torque and horsepower tapering off like that you don't need to push it to 7300rpm. No need to be hard on the motor.
sixshooter is offline   Reply With Quote
Old 05-07-2012, 06:27 PM   #14
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

I told him exactly the same thing when we tuned it: its at the limit.
And yet he's been raping face for over a year on it, absolutely beating on it daily, and its still kickin like a champ.

Must be a failflora block
Did we mention he's on his 11'th transmission?

I think the biggest bottleneck at this point is the teeny 2.5" exhaust
18psi is offline   Reply With Quote
Old 05-07-2012, 06:34 PM   #15
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,687
Total Cats: 560
Default

I'll take "thread titles never posted by Faeflora for $1000", Alex.
rleete is offline   Reply With Quote
Old 05-07-2012, 09:47 PM   #16
Junior Member
Thread Starter
 
Join Date: Jan 2011
Location: sacramento ,ca
Posts: 402
Total Cats: 46
Default

Quote:
Originally Posted by 18psi View Post
I told him exactly the same thing when we tuned it: its at the limit.
i know... im fighting the urge for new wastegate springs...

Quote:
Originally Posted by 18psi View Post
Must be a failflora block
is that some kind of bad *** aftermarket stuff? i mean its gotta be better than my junkyard EGT motor that had 130k on it before i started boosting it...

Quote:
Originally Posted by 18psi View Post
Did we mention he's on his 11'th transmission?
sadly lucky number 11 is starting to have low RPM shift issues... lucky number 12 is coming soon...

Quote:
Originally Posted by 18psi View Post
I think the biggest bottleneck at this point is the teeny 2.5" exhaust
gettin a raise at work... might be 3" after the down pipe very soon or should i go bigger?
fastivab6tg25mr is offline   Reply With Quote
Old 05-07-2012, 09:57 PM   #17
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Big and short as possible DP and exhaust.

If you ever build your motor you will not want to rebuild your DP and exhaust too. Once upon a time I thoght 3" was big. Yes there is significant benefit to bigger
Faeflora is offline   Reply With Quote
Old 05-07-2012, 10:47 PM   #18
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

Except he's running an evo16g.
He will be well past its efficiency with anything bigger than 3", and has even less room to work with than we do.


Just do a smooth taper to 3" as soon as possible on the downpipe and run the rest 3" JT. I think it should get the job done just fine.

But before anything else, your next mod should be h-beam rods. No ifs ands or buts about it.
18psi is offline   Reply With Quote
Old 05-07-2012, 10:49 PM   #19
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Quote:
Originally Posted by 18psi View Post
Except he's running an evo16g.
He will be well past its efficiency with anything bigger than 3", and has even less room to work with than we do.


Just do a smooth taper to 3" as soon as possible on the downpipe and run the rest 3" JT. I think it should get the job done just fine.

But before anything else, your next mod should be h-beam rods. No ifs ands or buts about it.

That's not my point. I mean if he decides to go to a bigger turbo in the future there are big spool advantages.

It also doesn't cost too much more at all
Faeflora is offline   Reply With Quote
Old 05-07-2012, 10:50 PM   #20
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

bigger turbo is going onto his 1600lbs FE3 powered spitfire.
in the form of a big a$$ holset.

winning
18psi is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 Today 09:00 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Why dynos should plot Torque divided by MAP JasonC SBB ECUs and Tuning 11 10-27-2015 05:56 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 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 09:49 PM.