300HP possible on a 2002? - 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 01-23-2008, 10:16 AM   #1
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default 300HP possible on a 2002?

OK, i've just been curious as to if it's possible. Im not running out to go crank up my boost and blow **** up. But, i get the idea after seeing all these confusing dyno numbers getting posted on hell.net. There is one dyno with a similar kit at 10psi putting down "274rwhp", but then there was another one at ~254rwhp.... wtf??? I've always heard that FM's dyno loved to be optimistic.... but by how much? Is there a chance i'll see different numbers then FM says due to my lower elevation and better 93 oct gas?

Meh, all i know is that very soon im scheduling an appointment with Ed @ Balanced to get mine dyno tuned for 12psi. (maybe 14 if 12 goes smoothly). Hoping that nets me near 280-ish at the wheels. I know im going to start planning on getting my hands on a 1.8 block and throwing some pistons and rods at it and going for a solid 300rwhp.
Doppelgänger is offline   Reply With Quote
Old 01-23-2008, 10:25 AM   #2
Elite Member
iTrader: (6)
 
Loki047's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 4,145
Total Cats: 0
Default

which turbo?
Loki047 is offline   Reply With Quote
Old 01-23-2008, 10:25 AM   #3
Junior Member
iTrader: (7)
 
Join Date: Apr 2007
Location: South of Houston, Texas
Posts: 329
Total Cats: 0
Default

Quote:
Originally Posted by Badger View Post
OK, i've just been curious as to if it's possible. Im not running out to go crank up my boost and blow **** up. But, i get the idea after seeing all these confusing dyno numbers getting posted on hell.net. There is one dyno with a similar kit at 10psi putting down "274rwhp", but then there was another one at ~254rwhp.... wtf??? I've always heard that FM's dyno loved to be optimistic.... but by how much? Is there a chance i'll see different numbers then FM says due to my lower elevation and better 93 oct gas?

Meh, all i know is that very soon im scheduling an appointment with Ed @ Balanced to get mine dyno tuned for 12psi. (maybe 14 if 12 goes smoothly). Hoping that nets me near 280-ish at the wheels. I know im going to start planning on getting my hands on a 1.8 block and throwing some pistons and rods at it and going for a solid 300rwhp.
I blew my 2002 motor making 305 rwhp, albeit it was at 20 psi. Realistically, I wouldn't push it past 12 psi if motor reliability is of any importance to you. If you want to push the limits go to 15 psi.

For me those numbers translated to [email protected], [email protected], [email protected]

Now for the built motor, the skies the limit.

I was running a T3 w/ a T04E Compressor Wheel.
mikef85 is offline   Reply With Quote
Old 01-23-2008, 10:35 AM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

Quote:
Originally Posted by Badger View Post
but by how much? Is there a chance i'll see different numbers then FM says due to my lower elevation and better 93 oct gas?
yes, typically FM's dynos are corrected. and not a few %, but 21%.

with that said, the same car down here, with the proper fueling, could possibly pump at the same numbers without correction.

Since a 12psi run on FM's dyno would be like the same car running 8-9psi at sea level it makes it really hard to use their dyno results for anything other than wishful thinking.

You have a 2560R on there right? 15-18psi could get you pretty darn close 300rwhp, but I wouldn't expect more than 275 or so. The compressor wheel craps out at around 35 lb/min, which is about 320BHP worth of airflow volume.


I know nothing about the internals of a '02, so I dunno if it's wise, if a lower compression motor, 12-15psi should be doable.
Braineack is offline   Reply With Quote
Old 01-23-2008, 10:44 AM   #5
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Ahhh ok. Yeah, ok. I guess if i wanted to make it a reality on a stock motor, then I'd need a 2871 or something similar..... but i don't want to go there....yet. I don't think i'll be disappointed with 12-14psi either..... esp. if it nets me near the 270-280rwhp mark (then i can say i have a 300hp miata..... at the crank lol).

I'm not on a mission to blow my car up though. So I'll keep the boost under at/under 14.

-Mike, i suspect that at 20psi the air was VERY hot... exp. with the fact that it only made 305 at the wheels.. no real mystery that it expired. That's why it's important to get good flow at a low psi rather then the same flow at higher psi

Yes, i have a 2560 and the comp. on the 01+ is 10:1.

Scott, can you make any guesstimate what a 2871 (or would a 2860 be better?) will do at 12psi? Would it get close to the 300rwhp mark?
Doppelgänger is offline   Reply With Quote
Old 01-23-2008, 10:55 AM   #6
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Holy ****, are you saying that I can make 260hp at 12psi? Is that highly dependent on the turbo?
Saml01 is offline   Reply With Quote
Old 01-23-2008, 10:56 AM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

putting one on newbsauce's built 1.6L soon... I can tell you then. those things are damn efficient up top.

but see y8s' 257rwhp 9.5psi dyno run with a 2876 on an '01.
Braineack is offline   Reply With Quote
Old 01-23-2008, 11:00 AM   #8
Junior Member
iTrader: (7)
 
Join Date: Apr 2007
Location: South of Houston, Texas
Posts: 329
Total Cats: 0
Default

Quote:
Originally Posted by Badger View Post

-Mike, i suspect that at 20psi the air was VERY hot... exp. with the fact that it only made 305 at the wheels.. no real mystery that it expired. That's why it's important to get good flow at a low psi rather then the same flow at higher psi

Maybe so, I don't have a datalog of the dyno run.
mikef85 is offline   Reply With Quote
Old 01-23-2008, 11:16 AM   #9
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

You can't do any tuning on the BPM dyno. And their dyno is fairly optimistic.
Ben is offline   Reply With Quote
Old 01-23-2008, 11:35 AM   #10
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

And to address your main question, no you're not hitting 300--not even at the crank--at any reasonable pressure. I predict 250 whp at 12psi.
Ben is offline   Reply With Quote
Old 01-23-2008, 11:36 AM   #11
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Why can't the BPM dyno do any tuning? If the real reason is to smooth everything out and adjust timing and fuel (with hp being the 'benefiting' factor), whats wrong with the dyno?
Doppelgänger is offline   Reply With Quote
Old 01-23-2008, 11:50 AM   #12
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Quote:
Originally Posted by Saml01 View Post
Holy ****, are you saying that I can make 260hp at 12psi? Is that highly dependent on the turbo?
Not with your turbo Sam.
cjernigan is offline   Reply With Quote
Old 01-23-2008, 11:59 AM   #13
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Anyone else want to take bets??? lol

We all want to see high numbers from dyno'ing..... im trying to make things sound good in my head, but i guess we'll see what happens next month.
Doppelgänger is offline   Reply With Quote
Old 01-23-2008, 12:12 PM   #14
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

They don't have a tuning (ie load) dyno. Go see Jerry at DIY.
Ben is offline   Reply With Quote
Old 01-23-2008, 12:12 PM   #15
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

Want me to crank my car up to 15 psi for a dyno run just to see how much it produces?

ha ha ha!
y8s is offline   Reply With Quote
Old 01-23-2008, 12:13 PM   #16
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Quote:
Originally Posted by y8s View Post
Want me to crank my car up to 15 psi for a dyno run just to see how much it produces?

ha ha ha!
not if it's your daily driver.
Ben is offline   Reply With Quote
Old 01-23-2008, 12:13 PM   #17
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

you can autotune just fine on a dynojet fyi. it works actually pretty well.
y8s is offline   Reply With Quote
Old 01-23-2008, 12:14 PM   #18
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

Quote:
Originally Posted by Ben View Post
not if it's your daily driver.

I suspect I have a warped clutch component somewhere. it's my daily nothin at the moment.
y8s is offline   Reply With Quote
Old 01-23-2008, 12:40 PM   #19
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Quote:
Originally Posted by Ben View Post
They don't have a tuning (ie load) dyno. Go see Jerry at DIY.
then what kinda dyno are they using to tune all the other cars with?
Doppelgänger is offline   Reply With Quote
Old 01-23-2008, 12:45 PM   #20
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Quote:
Originally Posted by Badger View Post
then what kinda dyno are they using to tune all the other cars with?
they just have a crappy *** dynojet. good for power pulls. not good for tuning. you can go there after you're tuned if you need to make a glamor plot.
Ben is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
wiring wideband ground to battery terminal btabor ECUs and Tuning 10 09-28-2015 06:33 PM
Foreign powered NB for NASA ST3 and/or E0 d k Race Prep 44 09-15-2015 11:59 AM
using 2002 ECU on 1990 Miata btabor ECUs and Tuning 12 09-14-2015 04:45 PM
Oregon New Guy Wino Meet and Greet 7 08-29-2015 03:26 PM
Craigslist: 2002 Miata LS 50k miles Columbus GA (no affil) naarleven Cars for sale/trade 3 11-28-2008 08:23 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 01:12 PM.