Break these Chinachargers down for me. - 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 03-20-2009, 11:05 AM   #1
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default Break these Chinachargers down for me.

As you may or may not know my turbo is on it's death bed.
https://www.miataturbo.net/forum/t32958/#post384559

So the search begins. I haven't seen ANY decent sized Garrett turbos for sale any where. I came across these two Chinachargers.

Take a look and tell me...

What it compares to (Garrett wise)?
Would you run it at 15 psi?
Do you have any experience with it?

I know there's a couple of guys around here using Chinachargers.
Which one do you have?
How long have you had it?
What psi are you running?

eBay Motors: GT28 GT2870 Turbo Charger internal wastegate .86 A/R @@ (item 110363791909 end time Mar-20-09 21:42:15 PDT)

eBay Motors: Drift T28 GT2860 S13 S14 Upgrade Turbo Charger .49 AR (item 120392174832 end time Mar-21-09 19:58:51 PDT)


TIA
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-20-2009, 11:08 AM   #2
Elite Member
iTrader: (10)
 
leatherface24's Avatar
 
Join Date: Dec 2006
Location: Pembroke Pines
Posts: 4,033
Total Cats: 2
Default

considering you have a built motor (thats nicely built i might add) it de carefull going the "cheap " route. You did that with the head studs and look what happened in a short while. you narrowlly avoided disaster there.
leatherface24 is offline   Reply With Quote
Old 03-20-2009, 11:34 AM   #3
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

I've seen some 2871s sell for around 800 on ebay... I'd venture down that route. Then again, I've never tried a chingchangcharger.
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 11:58 AM   #4
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

levnubhin is offline   Reply With Quote
Old 03-20-2009, 12:50 PM   #5
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

levnubhin is offline   Reply With Quote
Old 03-20-2009, 01:21 PM   #6
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

I don't particularly like that the second one has no specs posted. First one looks like a good sizing. .86 AR may push your spool back a bit unless you've got some headwork.
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 01:29 PM   #7
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Quote:
Originally Posted by Newbsauce View Post
I don't particularly like that the second one has no specs posted. First one looks like a good sizing. .86 AR may push your spool back a bit unless you've got some headwork.


I email them for specs. No headwork so how much spool loss should I expect?
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-20-2009, 01:37 PM   #8
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

Quote:
Originally Posted by levnubhin View Post
I email them for specs. No headwork so how much spool loss should I expect?
1.6? I run a 2871 with a .64 AR exhaust. I think my graphs were showing full song by 4500. Maybe if I had a 1.8 or a redline higher then 7200 I'd probably go with a .86.
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 01:51 PM   #9
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Quote:
Originally Posted by Newbsauce View Post
1.6? I run a 2871 with a .64 AR exhaust. I think my graphs were showing full song by 4500. Maybe if I had a 1.8 or a redline higher then 7200 I'd probably go with a .86.
Cool thanks. How much boost you running?
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-20-2009, 02:07 PM   #10
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

Quote:
Originally Posted by levnubhin View Post
Cool thanks. How much boost you running?
2871 .64, built bottom end, stock head. 17 lbs on the charts.

https://www.miataturbo.net/forum/t26984/
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 02:20 PM   #11
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Quote:
Originally Posted by Newbsauce View Post
2871 .64, built bottom end, stock head. 17 lbs on the charts.

https://www.miataturbo.net/forum/t26984/
Forgot about that. Must be a blast to drive?

This similar to yours? http://cgi.ebay.com/ebaymotors/GT287...Q5fAccessories
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-20-2009, 02:32 PM   #12
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Quote:
Originally Posted by levnubhin View Post
Takes forever to spool so torque is pretty low, I bet his car sucks off the line and is just as fast as any other turbo miata with a 2560 when doing highway pulls.
Saml01 is offline   Reply With Quote
Old 03-20-2009, 02:44 PM   #13
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

Quote:
Originally Posted by levnubhin View Post
Looks like it, except I paid like 750 used for my 2871R

Quote:
Originally Posted by Saml01 View Post
Takes forever to spool so torque is pretty low, I bet his car sucks off the line and is just as fast as any other turbo miata with a 2560 when doing highway pulls.
I've had a greddy 15g, a SR20 t25, and now the 2871. The 2871 is by far my favorite turbo as far as just driving enjoyment. The t25 spooled great, but it just felt like it died out hard up top. I do wish I'd have tried a 2860 though, as those seem like the ideal sizing.
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 03:52 PM   #14
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

levnubhin is offline   Reply With Quote
Old 03-20-2009, 04:13 PM   #15
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Do you realize you will only have 2500 rpm of use able powerband if you get a turbo this big?

You arent driving a honda with a 9000 rpm redline that actually makes power past 7000rpm unlike our shittastic engines. This turbo is gonna annoy the hell out of you.


Quote:
Originally Posted by Newbsauce View Post

I've had a greddy 15g, a SR20 t25, and now the 2871. The 2871 is by far my favorite turbo as far as just driving enjoyment. The t25 spooled great, but it just felt like it died out hard up top. I do wish I'd have tried a 2860 though, as those seem like the ideal sizing.
Ask Hustler how much he loves his 2860. Even with his 1.9l and his 99 head, he makes full boost by like 4200 rpm. You shoulda tried a GT2560. Proven 300whp and 270 torque and supercharger like spool characteristics.
Saml01 is offline   Reply With Quote
Old 03-20-2009, 04:20 PM   #16
Elite Member
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Default

Quote:
Originally Posted by Saml01 View Post
You shoulda tried a GT2560. Proven 300whp and 270 torque and supercharger like spool characteristics.
Who other than paul? who has an absurd flow exhaust mani and a begi intake mani strapped to his high flowing 99 motor?

Tell me please, because my 2560 isnt making anything near that kind of power.
thesnowboarder is offline   Reply With Quote
Old 03-20-2009, 04:23 PM   #17
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Quote:
Originally Posted by thesnowboarder View Post
Who other than paul? who has an absurd flow exhaust mani and a begi intake mani strapped to his high flowing 99 motor?

Tell me please, because my 2560 isnt making anything near that kind of power.
Artie. 275hp 250 torque I think with a regular 99 intake manifold.
Saml01 is offline   Reply With Quote
Old 03-20-2009, 04:36 PM   #18
Elite Member
iTrader: (2)
 
Newbsauce's Avatar
 
Join Date: Jul 2006
Location: NoVA
Posts: 2,304
Total Cats: 2
Default

Quote:
Originally Posted by Saml01 View Post
Ask Hustler how much he loves his 2860. Even with his 1.9l and his 99 head, he makes full boost by like 4200 rpm. You shoulda tried a GT2560. Proven 300whp and 270 torque and supercharger like spool characteristics.
Don't make the 2560 sound like the holy grail. Those cars are 1.8s and rocking the better flowing heads not to mention pauls IM. I personally didn't try the 2560 because it did not correspond with my end power goals. The turbo choice (the point of the thread) depends on Levnubs ultimate power and spool goals. If he wants very fast spool, yes I agree a 2560 is the way to go.
Newbsauce is offline   Reply With Quote
Old 03-20-2009, 04:53 PM   #19
Elite Member
Thread Starter
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Quote:
Originally Posted by Newbsauce View Post
Don't make the 2560 sound like the holy grail. Those cars are 1.8s and rocking the better flowing heads not to mention pauls IM. I personally didn't try the 2560 because it did not correspond with my end power goals. The turbo choice (the point of the thread) depends on Levnubs ultimate power and spool goals. If he wants very fast spool, yes I agree a 2560 is the way to go.
I'm used to 2554 spool but I will sacrifice some spool for more top end. I live in FL so everything is straight roads/highways. Id like to be around 250 whp, so.....
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-20-2009, 05:17 PM   #20
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,640
Total Cats: 1,559
Default

A 2500rpm usable range is all you need if your upshifts drop you no more than 2500rpm, technically speaking. Usefulness to a particular person is, of course, subjective.
sixshooter is online now   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 57 07-19-2017 05:11 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
New personal best 1/8th mile tehzack Dynos and timesheets 10 09-21-2015 07:30 PM
'92 tune, built motor whinin MEGAsquirt 0 09-15-2015 09:37 PM


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 01:02 PM.