Previously churbo, now gtx2863r - Miata Turbo Forum - Boost cars, acquire cats.

Previously churbo, now gtx2863r

Old 09-22-2018, 12:38 PM
  #1  
Junior Member
Thread Starter
iTrader: (1)
 
Sentic's Avatar
 
Join Date: Feb 2008
Location: Sweden
Posts: 434
Total Cats: 5
Default Previously churbo, now gtx2863r



I have an old dyno laying around somewhere on here.
That engine exploded on track after a while.

This is the new one. horsepower @ wheels.

E85 (running flex fuel, 226whp on European 95 gasoline)
DW300 fuel pump, DWr1000 fuel regulator, fuel system rebuild to vac reference.
JE 9:1 pistons and manley rods.
All rotating parts balanced.
bp4w head, refurbished, volvo valve springs and bp5a intake cam. VICS manifold. Skunk2 throttle body.
ID1050x
MS3 basic
BEGI cast manifold coated.
Home built and coated 3" downpipe with ewg pipe back in downstream.
Full 3" exhaust with big silencer and metal cat.
Garrett gtx2863, custom re welded exhaust housing a/r .64 with ewg and v-band dp.
Inconel 10mm studs and stage 8 for the manifold-turbo flange.
Probably too small FMIC when it gets really hot, working fine now.

Coolers, catch cans and such to make it work.

Sentic is offline  
Old 09-22-2018, 12:56 PM
  #2  
Junior Member
 
Join Date: Mar 2017
Location: Germany/Paderborn
Posts: 62
Total Cats: 2
Default

great setup!

>100whp just out of E85 is insane.

Is there higher octane than 95 available in Sweden other than E85?

Last edited by der_vierte; 09-22-2018 at 01:06 PM.
der_vierte is offline  
Old 09-22-2018, 01:16 PM
  #3  
Junior Member
Thread Starter
iTrader: (1)
 
Sentic's Avatar
 
Join Date: Feb 2008
Location: Sweden
Posts: 434
Total Cats: 5
Default

Originally Posted by der_vierte View Post
great setup!

>100whp just out of E85 is insane.

Is there higher octane than 95 available in Sweden other than E85?

Yes, there is 98 and 99 avaliable. Now, the +100whp is not only due to the fuel. the 95 map is very conservative. Its not my power fuel, its for transports and well, nordschleife, I don't want 300whp+ on the schleife, I'd die
The 95 map is with 170kpa (wastegate pressure), it felt wrong to try to make all of it on 95 when I have E85 in at least 1/3 of all gas stations, so just put it in a fun place. Now I have the choice between quick (95) and fast (E85)
Sentic is offline  
Old 09-22-2018, 01:35 PM
  #4  
Elite Member
 
codrus's Avatar
 
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 4,361
Total Cats: 509
Default

Looks like pretty similar hardware to mine, along with pretty similar results. One difference is that yours is giving a much more progressive boost-vs-RPM spool curve -- I'm guessing that's probably because of the dyno type, load-holding vs inertial.

--Ian
codrus is offline  
Old 09-22-2018, 01:45 PM
  #5  
Junior Member
Thread Starter
iTrader: (1)
 
Sentic's Avatar
 
Join Date: Feb 2008
Location: Sweden
Posts: 434
Total Cats: 5
Default

Originally Posted by codrus View Post
Looks like pretty similar hardware to mine, along with pretty similar results. One difference is that yours is giving a much more progressive boost-vs-RPM spool curve -- I'm guessing that's probably because of the dyno type, load-holding vs inertial.

--Ian
I've been eying your build since I got the turbo. So you're a bit of an inspiration for this.

Edit: I also think that your larger a/r and higher boost might be responsible for the gains you have 5k and up. You do reach 300hp a bit earlier than me

Last edited by Sentic; 09-23-2018 at 04:17 PM.
Sentic is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Synnuh
MEGAsquirt
7
01-24-2017 03:15 PM
codrus
Dynos and timesheets
10
11-03-2015 02:59 PM
Matt [exz3owner]
General Miata Chat
5
05-14-2008 12:18 PM


Thread Tools
Search this Thread
Quick Reply: Previously churbo, now gtx2863r


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.