Thanks for the update Paul, good spool with that 2560! I wish you could post a log with your DD for a better comparison!

 

i'll try tomorrow. i'm actually letting it sit though since the front pads are so low one started grinding. new are on order.

 

NO FEAR: If you aren't living on the edge, you aren't living....

 

'94 1.8 (8.8:1 comp), GT2554R w/ 7psi can, Bell S3 manifold, SSSG DP, 3" metal core cat, 3" Enthuza

the equivalent of a 4th gear pull on a 5speed/4.1 car (5th gear in my car).

1750rpm: 1.0psi
1870rpm: 2.1psi
2014rpm: 3.3psi
2478rpm: 5.4psi
2626rpm: 6.1psi
2783rpm: 7.3psi
3004rpm: 9.4psi
3188rpm: 11.0psi
3394rpm: 12.5psi
3601rpm: 14.1psi

 

absurd.

I need real boost control instead of this ball 'n spring.

 

you like?

here's what happened when i pulled from 1750rpm

100% tp @ 1750rpm

2000rpm 2.9psi
2200rpm 4.6psi
2500rpm 6.5psi
2700rpm 8.5psi
3000rpm 11.6psi
3200rpm 14.0psi

 

Damn. damn damn.

I will datalog my car for sure, but I think the twins can't get to 14psi til after 4000. They make like 5psi really low but then sorta stay there until the revs climb.

Anyone want a TT setup? Maybe Mark will buy one of the 1548's. Partial trade for a VVT head?

I'll use the stainless absurdflow manifold that I'm making and the 2560 off my subaru. I bet artie is getting anxious.

 

Is It Done????

 

Sorry buddy, next week. It's close though.

 

ok so mine was from 2300. dyno operator gave me the "hammer down" at that point

 

It's cool. Perfection needs time. Once its done I can dyno and post my spool numbers here too. Sorry for the thread hijack.

 

Man, I guess I need to ditch my RB exhaust as well. The T3 spools a tad late, anything quicker would be nice.

 

I performed some mild headwork and I gained a touch better spool.....this was with a 2.25" borla exhaust.



this is no headwork with a MBC compared to headwork with an open wastegate line.... what can clearly tell is the headwork helped spool the turbo a touch earlier....you can also see my boost creep started to appear


upgraded to a 3" magnaflow....the difference is clear:

 

 

I'm seeing 14psi just before 4000rpm in 4th gear. I suspect I'll get a boost a couple 100rpm sooner when I change out my exhaust. right now it is 2 1/4" Spec Miata exhaust with an extra glass pack resonator. Ideal it's not. No fancy EBC, just a ball and spring MBC.

 

Cough cough....

 

there was mild work performed on my head....


happy?

 

Just stealing your lime light :P

 

How about this for an interesting comparison? My setup vs paul vs brian vs Sav

 

I just found my log here that I took about 2 weeks ago just to record my spool....

RPM PSI

2500 1.5psi
2700 3psi
3000 5psi
3300 7psi
3600 10psi
3767 11.6psi
3788 12.9psi
3861 14.0psi
3900 16.2psi

3rd gear, 70*F morning

in fourth, log shows spool is about 150rpm faster.

can you redo with those numberz please.