North American Turbocoupe Organization



85-86 turbo difference
jtmbristol Offline
Member
#1
Hey all, tried searching and either came up with nothing or was completely overwhelmed. What is the diff between the auto and manual turbo's on 85-86 TC's ?
I have an 88 5-spd and have a line on an 86 turbo for upgrade but it is out of an auto car.
Thanks much
88 'Bird, 5spd, .63 T-3, ported E6, 3" into dual 2 1/2 exhaust, 1.89/1.59 valves with Boport 1.5 cam, Ram Powergrip clutch, stock IC.
Reply

Huey866 Offline
Posting Freak
#2
The only real difference is that automatic turbos have a .48 wheel on the exhaust side. This allows the turbo to spool up qwicker but it has less topend. Stardard turbos have a .53? wheel on the exhaust side. This requires a few hundred rpm more to spool but will carry you through the entire RPM range.

[This message has been edited by Huey866 (edited 05-19-2005).]
87 TurboCoupe - silver, 137k, 5-speed, 3.73 w/ superior axles, Maximum Motorsports suspension, 03 Cobra Brakes, 93 GT vacuum assist, Griggs Subframe connectors, RR cam, Essy Adj. Cam Gear, Boblog, Bob Elbow, .63 T-3, ARP headstuds, Stinger 3in Exhaust, Magnaflow Muffler, AEM gauges, Tweecer RT, Godspeed Omega 18x9
Reply

jtmbristol Offline
Member
#3
Thanks much, I was more concerned with a difference in the wastegate or actuator allowing less boost on an automatic turbo but I think that is controlled by the BCS.
88 'Bird, 5spd, .63 T-3, ported E6, 3" into dual 2 1/2 exhaust, 1.89/1.59 valves with Boport 1.5 cam, Ram Powergrip clutch, stock IC.
Reply

Joe F Offline
Posting Freak
#4
85/86 didn't have BCS's; only 87/88 had those.

------------------
Joe F.

JR's Place - My 87 TC
JR's Place - My '87 Turbocoupe
Reply

Pete D Offline
Administrator
#5
All Ford 2.3 turbo WGAs were set to open around 9.5 psi.
Pete Dunham


Reply

jtmbristol Offline
Member
#6
Ok thanks, but this is adding to my confusion now. If 85-86 had no BCS am I to assume the wastegate limits boost to 10psi ?
I have a brand new turbo, but it is for an 85-86 with an automatic, when I put this on my 88 will I be able to increase boost to 18psi using a Gillis valve ? How much difference, topend, is there between the .48 I have and the .63 ?
Thanks.
88 'Bird, 5spd, .63 T-3, ported E6, 3" into dual 2 1/2 exhaust, 1.89/1.59 valves with Boport 1.5 cam, Ram Powergrip clutch, stock IC.
Reply

Pete D Offline
Administrator
#7
Quote:when I put this on my 88 will I be able to increase boost to 18psi using a Gillis valve

Yes
Pete Dunham


Reply

jtmbristol Offline
Member
#8
Thanks Pete, you are an encyclopedia of knowledge. Any enlightenment on the .48 vs .63 controversy ?
88 'Bird, 5spd, .63 T-3, ported E6, 3" into dual 2 1/2 exhaust, 1.89/1.59 valves with Boport 1.5 cam, Ram Powergrip clutch, stock IC.
Reply

turbotbirdguy79 Offline
Senior Member
#9
My buddies 85 has a BCS,looks stock too.Someone must have put it on.
1988 Tc,SC50(.63),Bosch BPV,Coolingmist methanol injection activated at 10 psi,FMS big valve 1.89/1.59 head,a234,ported E6,ported lower and upper intake,Gillis,3"downpipe,3"exaust,Kirbin AFPR,255 HP LPH pump,Racer Walsh adj cam pully 2* advanced*,K&N cone,MSD Blaster,autolite 103 plugs,T5 swap,3.73s,shifter,Centerforce stage 2 clutch,motorcraft tuneup.
Reply

Keith Nubel Offline
Posting Freak
#10
All 85's and up have the BCS

------------------
85.5 TC 5 speed, Ranger Roller cam, 3" exhaust system, manual boost valve, large VAM, SVO PE computer, front mount Motorsport intercooler & sport grille, ported upper and lower intakes,flow matched injectors, ported E6 manifold, 245/45/17 wheels & Tires,Motorsport 140 mph speedometer,Motorsport lowering springs, Kenwood EZ500 200 watt receiver with Cerwin Vega speakers sound system, air conditioning converted to R134A and Sanden compressor retrofit kit installed, under restoration
1985 TC
Reply





Users browsing this thread:
1 Guest(s)



Theme © iAndrew 2018 - Software MyBB