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Registered User
Join Date: Apr 2011
Posts: 235
I use a GT35 with a 1.06 twin scroll hot side on a T4 flange, fits the bill for me with full boost a 3000rpm, zero boost creeps or spikes with the twin gated headers and a screaming top end. Need to get it to a dyno to see what its doing but it feels extremely strong.

Twin Scroll 1.06 A/R GT35 and dual gated Rarlyl8 headers

1988 930: 3.5L 100mm LN slipins, LN FFA rods, Supertec studs, GT3582R with T4 1.07A/R twin scroll housing, RarlyL8 equal length divided headers, dual Tial MVS 38mm WG's, Carrera 3.2 heads with 993 big valves. 964 Cams, full bay IC, KEP st1 clutch. PE3 sequential ECU with 750cc EV14 injectors, CoP twin plugs, J&S Safegaurd, Aquamist HSF3 water inj. Wavetrac LSD.
Old 02-22-2013, 07:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
Forced Induction Junkie
WERK I's Avatar
Join Date: Jan 2003
Location: Wisconsin
Posts: 3,324
Sorry to be a skeptic here guys, but some of these numbers are blowing me away. I think I'm missing part of the story. Will you report what work has been done to the heads as part of your signatures? Are you using 3.2 heads, SC heads, ported the 930 heads to SC or 3.2 specs?

'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 02-23-2013, 04:21 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
Turbo Powered Snow Blower
Join Date: Mar 2016
Location: Rocklin, CA .... Galveston, TX
Posts: 4,299

What was the outcome of this search? Was the Garrett GT3582R the answer?

Originally Posted by RarlyL8 View Post
Thank you for you inputs.
This is a specifc application and the build parameters are set in stone:
> Oil only cooling - no water
> 400WHP max at 1.0bar, 6500rpm redline.
> T3 or T4
> Twin Scoll devided housing turbo
Goal is to find the widest powerband twin scroll turbo that will support 400WHP.
I took a look at the CompTurbo website but see no information on sizing for application or any specific range of operation data. May have missed that page.

Old 12-01-2016, 07:00 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)

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