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6G75_3Gs 3.9L MIVEC, AWD BOOSTED BUILD

49K views 180 replies 28 participants last post by  6g75_3g  
#1 · (Edited)
update 18FEB2019
i would say a lot has changed since i started this thread lol
The Mivec swap was done and engine built, than i drove it acrossed the US. so currently at the Fab shop getting the turbo "KIT" done. full custom manifold to a twin scroll set up.


ENGINE BAY
MOTOR

3.9L V6 MIVEC
Wiseco 96MM Pistons with 1MM over sized Valve pockets(.0045 piston to wall)
Spool Import H-Bean Rods with ARP 2000 Bolts
VR4 ARP 4 Bolt Main Studs
ACL Main STD Bearings
ACL Rod STD Bearings
ACL Thrust Washer
Cometic .045” Head Gaskets
Blocked Zero Deck
P&P Heads
Gasket Matched intake manifold.
S90 74MM Tb with evo sensors
GSC 2Jz Viton Stem seals
Custom 6G74 fuel rails
SpeedFactory 2JZ Titanium Exhaust manifold studs

COOLING
Mishimoto Alum Rad.
Mishimoto Blue Silicon hoses
Mishimoto Dual Pusher Fans
Boston Hatcher Rad support mounts

TURBO
Twin scroll 6766PTE
EVO ETS Front mount intercooler
Duel 38mm Tial Wastegate
Tial 38mm Bov
Full custom turbo “kit” By Limitless performance

Fuel System
Custom -8 SS Fuel Feed
Custom -6 SS fuel Return
1650cc FCI injectors
Fuel lab FPR
AEM Flex Fuel Sensor
Walbro 450 pump
12gal Radium fuel Cell with dual 450 E85 Pumps
Radium 100m inline fuel filter with heat exchanger mount


ELECTRONICS
AEM V2 VR4 ECU
FULL Custom Wire Harness
AEM CD5 Dash
Motec Firewall 61 pin Plug
AEM Oil Pressure sensor and Gauge
AEM Coolant Temp. Sensor displayed on CD5
AEM Tru Boost with Boost Sol.
AEM AFR Gauges
AEM Fuel Pressure Sensor
AEM MAP Sensor
XS Power D- Series AGM 16-Volt Battery

ODD and INS
ABS Delete
Cruise control Delete
Evo Stainless steel power steering reservoir(Deleted)
Battery Relocated
Fuse Box Relocated




DRIVETRAIN
AWD

Evo 8 Trans
Custom Adaptor plate to fit evo trans on v6
Evo 6 T Case
Front Evo Axles
Front Evo Knuckles
Front Evo Wheel Bearings
Custom 2 piece Driveshaft from Driveshaft shop
Rear Volk Metal Craft Tube Subframe
Rear GSX 3.307 LSD
Rear GSX LSD Axles
Rear GSX Knuckles with Poly bushings
Rear GSX Wheel bearings
Rear GSX rebuilt Parking brakes
Evo SS Full Slave cylinder Line
Rear Volk Lower Control Arms
Rear Volk Trailing Arms
Rear Volk Toe Arms
Evo Soild shift bushings
Rear 3G upper control arm
3G D2 Coilovers
Rear upper DC sport strut bar
Full EVO Brembo Swap finished in Race Red
Stop Tech Slotted Rotors
Evos extended lug stud all 4 wheels
15mm STM Wheel spacer
GoodRidge SS Brake Lines
Clutch masters Twin Disk with custom Flywheel
CM Hydraulic throwout bearing
CM Hydraulic flow control valve
ARP Ford Probe long Flywheel bolts.



BODY
Stock body
Alloy Gas cover
Avid one AV-06 wheels
18x8.5 +35
18x9.5 +24

Sun Roof Delete custom cover
Front and Rear Windshield wiper Delete
Spare Tire tube replaced with custom Fuel Cell Box mount




INTERIOR
Megan Racing Short shifter
NRG Quick Release
NRG Carbon Fiber steering wheel
NRG Tear Drop Carbon Fiber Shifter
NRG Harness Bar(Removed)
5 point Harness
Red Fix Back Recaro SRT Seats
full Rear interior Delete
Half Cage with front Cage waiting to go in.
 

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#13 ·
Picked up my 6g75 today. Super clean. 79k miles. Will be doing a car fax on the vin and get the info. Happy day for sure.
 

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#16 ·
Got the motor stripped and unnecessary 6g75 parts off. Test fit the 74 parts before i get them painted. Almost ready for new parts to go on. The top front timeing cover doesn't fit. And the motor was missing that cover. So ill be getting one.
 

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#21 ·
Im going to go with a competition stage 2 or 3, on there web site its listed $450 for stage 2, $467 for stage 3. So if i can find it cheaper i will be looking.
 
#25 ·
Nothing to big yet, the motor will be untouched, just some supporting mods. So anything close to 260whp will be fine with me. Once i move to va ill be lookking at more motor work.
 
#28 ·
Just an update. Im collecting parts. And waiting for the day to swap. Still have to go with my 74 TB or maybe pick up an s90. Still need to mod the intake some. The value covers are going powder coated. Got the clutch ordered,thinking i might pick up a light flyweight. Got everything for the LSD swap.
 

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#31 ·
Hope you can get your money back. Nothing from the other motors cross over, the mivec 75 uses unique valves and guides currently only available through the dealer making it about as expensive to repair as a new motor. I know this because I repaired a set this winter and the only way to justify it was getting a good deal on a donor head and a hookup on the machinework.
 
#32 ·
Yeah i called them today before I actually knew for sure it was dead in water and told them, ill be calling tomorrow and demanding my money back, yeah i have a shop that can do the work. So lets hope its not a very costly thing. Just sucks, the motor looked sound but once i ran into the timing problem it was a work stoppage...guess the only good out come is i wanted to do the maintenance while the motor was out or it would have been a bigger problem later down the road. Ill be asking the 4g guys what internal upgrades they go woth if there are any. Take this time and get the motor work on some.
 
#33 ·
Kept the motor, going to the shop today, or well brandon and i i going to the shop to tear it apart, mike (the shop owner) found everything from his parts guy, looking at upgrading the pistons to wiseco.
 

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#34 ·
Well on the right track. Got the heads tore all the way down along with the block, hot tanked it. And got it read for dallas to rebuild, port and polish.

Before and after cleaning of the heads

And the valves that where bent.

Cant wait. Most likely bumping the CR to 11:1 with the new pistons and set up. So now hope to see around 300.
 

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#38 ·
Even with stock pistons/compression and the right configuration 300 WHP is very realistic on the MIVEC setup. Increasing the compression will certainly add to the power potential, but it will also place a higher demand on the rest of your setup to make even more efficient HP numbers. This thing will run nicely at the lower elevations as well :agreed: