Anyone have a 8.7 motor w/ 99 head and 2560? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Insert BS here A place to discuss anything you want

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 07-10-2009, 07:27 PM   #1
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Question Anyone have a 8.7 motor w/ 99 head and 2560?

I am curious what ill be able to do with this setup and am looking for anyones dyno numbers.

Begi cast mani/separated gases dp.

What kind of power do you guys think an 8.7 motor with a 99 head and a 2560 will be able to do?
thesnowboarder is offline   Reply With Quote
Old 07-10-2009, 10:48 PM   #2
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

which turbine housing? The bigger the turbine housing, the more spark angle and more torque subsequently. If some of you california **** drove my car, and wanted 260-330whp (dynodynamics) then you'd all run the DP. However, Savinton and just about everyone else on this forum think you need a tiny turbine because you have this fantasy where 3800rpm is too late to hit 15psi, so you'll never give it a chance.

I think an 8.7 motor will make just as much power from a gt2560 as a 9:1 motor, but it won't make as much torque.

So I'll say you'll make 230whp at 15psi but only 210wtq on a dynodynamics, maybe less torque. Once you drive a stump-puller like mine, you'll never go back to little turbine housings. Then again, all my dyno #'s are with a 2.5" exhaust gasket...in 3" pipe. They're probably scary #'s now.
hustler is offline   Reply With Quote
Old 07-10-2009, 10:59 PM   #3
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

Why the **** did you ever put a 2.5" exhaust gasket on a 3" exhaust? Ever think of using a knife to cut the hole bigger? I love how all the sudden you think you are swinging dick when it comes to turbos when less than a year ago you didn't have a ******* clue.
neogenesis2004 is offline   Reply With Quote
Old 07-11-2009, 06:38 AM   #4
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,174
Total Cats: 2,575
Default

Quote:
Originally Posted by neogenesis2004 View Post
Why the **** did you ever put a 2.5" exhaust gasket on a 3" exhaust? Ever think of using a knife to cut the hole bigger? I love how all the sudden you think you are swinging dick when it comes to turbos when less than a year ago you didn't have a ******* clue.
18psi is offline   Reply With Quote
Old 07-11-2009, 01:17 PM   #5
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

You should easily make >240 at 12 psi.
JasonC SBB is offline   Reply With Quote
Old 07-11-2009, 01:48 PM   #6
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by neogenesis2004 View Post
Why the **** did you ever put a 2.5" exhaust gasket on a 3" exhaust? Ever think of using a knife to cut the hole bigger? I love how all the sudden you think you are swinging dick when it comes to turbos when less than a year ago you didn't have a ******* clue.
I think someone helping-out that day put it in because the one I hollowed-out looked used.

Your girlfriend appreciates my swinging meat. Maybe if you walked into a gym for the first time in your life and picked-up some iron, instead of picking-up a mouse to play warcraft, you might have a chance of producing a drop of testosterone and with any luck you'll grow a dick instead of that little nub your girlfriend complains about. Talk **** to me again and I'll crush your ******* skull.
hustler is offline   Reply With Quote
Old 07-11-2009, 04:09 PM   #7
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

It took me 2 weeks to turbo my miata. It took you two years. Grow some ***** you ***** ****.

I built my dp, exhaust, and heatshield from scratch. I rebuilt the motor in my crx in a weekend. I built the motor in tom's brg. You call yourself a man? WTF have you built with you bare hands other than a pile of sad whining questions about turbo this and turbo that. You are a sad excuse of an e-thug that relies on people who know thing to get them done for you. Go retreat to your cave you Neanderthal POS.
neogenesis2004 is offline   Reply With Quote
Old 07-11-2009, 05:54 PM   #8
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by thesnowboarder View Post
I am curious what ill be able to do with this setup and am looking for anyones dyno numbers.

Begi cast mani/separated gases dp.

What kind of power do you guys think an 8.7 motor with a 99 head and a 2560 will be able to do?
8.7 CI motor is up to what year?

Want more spool and better power? Get my tubular replacement manifold for the BEGI cast piece.
TurboTim is offline   Reply With Quote
Old 07-11-2009, 06:05 PM   #9
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Default

Quote:
Originally Posted by TurboTim View Post
8.7 CI motor is up to what year?

Want more spool and better power? Get my tubular replacement manifold for the BEGI cast piece.
It will be in a 94-95 block with supertech pistons and belfab rods.

How much was that mani again?
thesnowboarder is offline   Reply With Quote
Old 07-11-2009, 06:11 PM   #10
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by thesnowboarder View Post
It will be in a 94-95 block with supertech pistons and belfab rods.

How much was that mani again?
Oh. Sounds like a nice build.

$575 mild steel no egr T2.
TurboTim is offline   Reply With Quote
Old 07-11-2009, 06:13 PM   #11
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,360
Total Cats: 1,323
Default

Quote:
Originally Posted by TurboTim View Post

Want more spool and better power? Get my tubular replacement manifold for the BEGI cast piece.

lol, I just got a text about this.
Savington is online now   Reply With Quote
Old 07-11-2009, 06:14 PM   #12
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by Savington View Post
lol, I just got a text about this.
Why? You're getting something even better.
TurboTim is offline   Reply With Quote
Old 07-11-2009, 06:16 PM   #13
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Default

Quote:
Originally Posted by TurboTim View Post
Oh. Sounds like a nice build.

$575 mild steel no egr T2.
Sent you a PM with a few questions. Looking for SS.
thesnowboarder is offline   Reply With Quote
Old 07-11-2009, 06:31 PM   #14
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by thesnowboarder View Post
Sent you a PM with a few questions. Looking for SS.
Replied. Timeframe...next mani is going to be started in about 4 weeks. Don't know what it will be yet, if I don't get any buyers of what I have already done by then, I'll probably do a MSM replacement mani.
TurboTim is offline   Reply With Quote
Old 07-11-2009, 08:13 PM   #15
Elite Member
iTrader: (12)
 
Join Date: Aug 2006
Location: Central-ish VA
Posts: 4,449
Total Cats: 16
Default

Tim's work is definately great. Best design available for sure if you want best performance. I would say though that ss isn't really needed. I'd just get sch40 mild and call it a day. It would last forever. You could hang the titanic off of it.
neogenesis2004 is offline   Reply With Quote
Old 07-11-2009, 08:35 PM   #16
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by neogenesis2004 View Post
It took me 2 weeks to turbo my miata. It took you two years. Grow some ***** you ***** ****.

I built my dp, exhaust, and heatshield from scratch. I rebuilt the motor in my crx in a weekend. I built the motor in tom's brg. You call yourself a man? WTF have you built with you bare hands other than a pile of sad whining questions about turbo this and turbo that. You are a sad excuse of an e-thug that relies on people who know thing to get them done for you. Go retreat to your cave you Neanderthal POS.
oh man, I'm half hard just reading about your fabrication glory. I'll remember that when I'm setting lap records and going home to supermodels.
hustler is offline   Reply With Quote
Old 07-11-2009, 09:38 PM   #17
Elite Member
iTrader: (7)
 
Join Date: Jan 2008
Location: Knoxville, TN
Posts: 2,118
Total Cats: 44
Default

This thread delivers in more ways than one lol.

I'm running a 9:1 motor,with FM's log-style mani, 2000 head and tuning towards 15psi. I should be hoping on the dyno within the next month or so, I'll let know with the numbers. Hopefully I'll see 240rwhp/230ftlbs at least, well I'd be happy with that for now.

I'll end up getting a 3'' exhaust and getting Tim's FM/BEGi replacement then shooting for 270/250 or more.
flier129 is offline   Reply With Quote
Old 07-11-2009, 10:29 PM   #18
Elite Member
Thread Starter
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Default

Alright, lets toy with the idea of absurd flow, v-bands and maxing out the 2560.

What kind of power might one expect with both a .64 and .86 housing..

Should i even mess with the 2560 anymore?

I feel like if i decide to go absurd flow, built motor, 99 head why even mess with a small turbo anymore.
thesnowboarder is offline   Reply With Quote
Old 07-11-2009, 11:42 PM   #19
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by thesnowboarder View Post
Alright, lets toy with the idea of absurd flow, v-bands and maxing out the 2560.

What kind of power might one expect with both a .64 and .86 housing..

Should i even mess with the 2560 anymore?

I feel like if i decide to go absurd flow, built motor, 99 head why even mess with a small turbo anymore.
do you care about torque? If not, then go with the small housing. 260wtq at 4k rpm is pretty damn fun and really easy to drive. With the larger housing you'll also make more power when you hit the efficiency range ont he comrpessor because its much less restrictive on the exhaust.
hustler is offline   Reply With Quote
Old 07-12-2009, 01:09 PM   #20
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by thesnowboarder View Post
Alright, lets toy with the idea of absurd flow, v-bands and maxing out the 2560.

What kind of power might one expect with both a .64 and .86 housing..

Should i even mess with the 2560 anymore?

I feel like if i decide to go absurd flow, built motor, 99 head why even mess with a small turbo anymore.
Paul's '99 headed '94 1.8 2560 w/BEGI cast intake, 70mm TB maxed at 300rwhp @14...17psi only gave him higher IAT's and like 307rwhp, so I'd say the max is right around 300 with that turbo, regardless of TiAL or garrett housing, internal or external WG...this is with the standard A/R 2560 (T2 flanged) obviously. Artie makes similar hp and 265ft-lbs. "instant" spool on both, that is what you get with the 2560...perfect for the street and awesome for the auto-x crew, but if you're a big boy like hustler and Sav and like running on a road course, I'd go with a larger turbo.
TurboTim is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
elesjuan's mediocre 95 Miata adventure (google fiber edition) elesjuan Build Threads 8 02-16-2016 09:36 PM
Miata new person and a what's it worth! Model192 Meet and Greet 16 09-29-2015 09:50 PM
1991 Turbo Miata partout tottestad Miata parts for sale/trade 18 09-14-2015 08:52 PM
Mystery Engine Trouble. Halp, mt.net! vehicular General Miata Chat 12 09-14-2015 04:17 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 06:15 PM.