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Mitsubishi Evo 4-9 4G63 Garrett Twin Scroll T4 External-WG Turbo Kit
Full-Race’s legendary Twin Scroll Turbo Kit for the Mitsubishi EVO is our answer to the most competitive market in the sport compact industry. Proven during world-class time attack battles to weekend drag strip setups, the Full-Race twin scroll is one of the most versatile and effective ways to turbocharge your evo.
Configured similarly to the highly effective OEM twinscroll system, Full-Race’s design is compatible with numerous different twinscroll turbos; BorgWarner Airwerks or EFR, Garrett GT or GTX, FP HTA, etc all can work. Combining great turbo technology with Full-Race’s design and fabrication skills – makes for faster spool with a broader and more usable powerband than any comparable open-scroll turbo setup. The result is an exceptionally responsive turbo system which adapts to multiple turbo sizes from 400hp to 800+whp.
Full-Race Mitsubishi Evo 8/9 4G63 T4 Twin Scroll Turbo Kit Includes:
- Full-Race EVO 8/9 T4 Twin Scroll Turbo Manifold
- Full-Race EVO 8/9 T4 Twin Scroll 3″ Downpipe and Midpipe
- Full-Race EVO 8/9 T4 Twin Scroll Kit Box
Full-Race EVO 8/9 T4 Twin Scroll Turbo Manifold
Full-Race EVO 8/9 T4 Twin Scroll 3″ Downpipe and Midpipe
Full-Race EVO 8/9 T4 Twin Scroll Kit Box
Optional Full-Race EVO 8/9 T4 Twin Scroll Charge Pipe Kit
Optional Full-Race EVO 8/9 T4 Twin Scroll Dumptubes
For additional information and/or related questions, feel free to contact us.
- [email protected]
- (866) FULLRACE
| Weight | 120 lbs |
|---|---|
| Dimensions | 39 × 16 × 16 in |
| Brand | Full-Race |
| Downpipe Coating | 2000 Deg. Black ($+150.00), 2000 Deg. Silver ($+150.00), None |
Results
Testing Results:
- Wingz Tuning Mitsubishi Evo 9 with A/C: EFR9174 1.45 a/r @42psi boost2.1L engine, 156mm rod, Full-Race small runner AC manifold / 3″ AC tight radius downpipe, 10:1 compression, E81 fuel, 42psi boost:
- BorgWarner S200SX 7670 1.22 A/R twinscroll: the following dynochart (courtesy of Mark Shead @ MADevelopments in the UK) compares back-to-back a Full-Race Twinscroll S200SX 1.22 a/r (red line) VS Full-Race Singlescroll GTX3071R .63 a/r (black line). It is clear to see the twinscroll S200SX spools faster and makes more power everywhere than the GTX3071 openscroll turbo:
- BorgWarner EFR 7670 1.05 A/R twinscroll: dynoplot courtesy of RRE and Robispec. Full-Race twinscroll evo turbokit (dual MVS), bushur 2.3 RPM motor, HKS 280 cams, stock intake manifold, 1600cc injectors + E85
- BorgWarner EFR 7670 1.05 A/R twinscroll: dynoplot courtesy of MADevelopments in the UK. Full-Race twinscroll evo turbokit (dual MVS), 2.0L engine, stock cyl head ports, stock valves, stock intake manifold, just JUN 272 cams + valve springs, on Shell 99RON pump fuel
Another great example of the EFR 8374 performance comes from Stephen Kakavas’ Time Attack Evo in australia. This engine uses an 8374 1.05 a/r on a 2.1L long rod 4G63, tuned to approx 32psi boost.
power and torque:
power and boost:
- BorgWarner EFR 8374 1.05 A/R twinscroll: dynoplot courtesy of SSE and Eric Hsu/cosworth. Full-Race twinscroll evo turbokit (dual MVS), 2.2L cosworth motor
- BorgWarner 8375 1.00 A/R twinscroll: this dynochart (courtesy of Sean Ivey @ Iveytune) shows a 100% stock Evo 9 engine with HKS 272 cams. Exedy triple carbon clutch, stock head, stock bottom end. Full-Race Twin Scroll T4 Turbo Kit.
- GT4088R Dyno Results 2.4L Evo 8 w/ Twin Scroll 40R VS Single Scroll 37R this build has a psycho power band for a true street car — 200lbft @ ~3600rpm and 500 lbft @ 5000rpm, then 600lbft @ 5300rpm.
^^^Orange line = Twinscroll 40R (new setup) compared to blue line = Single Scroll 37R (old setup). Note the big difference in “area under the curve” from his new round of mods (turbo kit, head, ignition)
^^This dynochart is courtesy of Evans-Tuning and shows a Full-Race Twinscroll turbokit with GT4088R on Q16 vs E98. Very interesting to see the huge powerband gains the E98 produces, but at 790whp the GT4088R is out of breath. **This evo will receive an EFR 9180 next and we will update the dynochart on this page once completed**
The approximate gains with the 40R vs 37R are:
2000rpm +5hp, +20tq
3000rpm +20whp, +40tq
4000rpm +50whp, +65tq
5000rpm +150whp, +150tq
6000rpm +60whp, +60tq
7000rpm +30whp, +5tq
Install
Application Notes:
- Stock Radiator Fan will not fit 4″ inlet turbos (Slimfan required). Applications such as Time Attack or Endurance racing which require huge CFM for extreme water temps should use the SPAL fan (SPAL 30101504). It flows about 50% more CFM than our standard unit and draws 50% more amps (12 instead of 8amps).
- Dump tubes are not included
- The stock evo turbo’s water lines are recommended to be used for watercooler GT30R and GT35R Evo’s.
- All twinscroll T4 Evo kits with BorgWarner turbochargers should notch the motor mount slightly to give more clearance for the 3″ compressor outlet.
- Wastegates should be oriented as shown in the picture below for dumptubes.
- When using a Borg Warner EFR8374 or EFR9180 turbo with this manifold, clearance must be made around the front transmission mount area. Either remove the BOV from the large frame EFR or notch the transmission mount. The following photos explain this:
removing EFR9180’s BOV optional
-or- Notching Transmission Mount to retain EFR9180 recirc valve
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