Home / Toyota Supra Forums

Go Back   Toyota Supra Forums! Join the Supra forum! > Performance, Modification, and Maintenance Forums - for generation specific discussions > MKIII Supra

Reply
 
Thread Tools Display Modes
Old 12-15-2011, 08:16 PM   #1
bbullsj
Intake
 
Join Date: Oct 2008
Location: Michigan
Posts: 42
bbullsj is on a distinguished road
Default 89 supra turbo mods

i have an 89 supra turbo automatic. i blew the head gasket externally so im ripping it down. i was wonder what some easy options for upgrades were? everything is stock on it except for 3 inch stainless exhaust from bottom of manifold and back. ive heard swapping out the cams for n/a ones? does the timing need to be set differently than stock then? twin turbo setup(which would be costlty and prob some custom fab work)? aftermarket exhaust manifold that will still bolt up to the stock ct-26 turbos?
im not looking to get into fuel injectors, pump, and ignition yet. need to get it back driveable first but looking for some easy upgrades while im doing the head gasket.
are valve seals fairly easy to do or do they require some special tools?

it is currently an automatic but im hoping to convert it to a manual soon. i know i should just buy one thats a manual and same myself a lot of time but this car is in such good shape with no rust and ive put a lot of new parts on it in the past 2 years that i dont want to have to do to a new one.
if anyone has some good info or knows any sites or other threads that will help me it would be greatly appreciated. ive seen some other threads discuss upgrades but one always seems to contradict each other on which ones are the best.
bbullsj is offline   Reply With Quote
Old 12-16-2011, 05:57 AM   #2
cre

Toyota
Racing
Development
 
cre's Avatar
 
Join Date: Apr 2007
Posts: 5,038
cre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond reputecre has a reputation beyond repute
Default

The N/A cam swap is a myth... The exhaust cams are all the same, only the intake cam differs but it doesn't really give much improvement in the low end (because you're out of it's range too quickly once the turbo begins compressing air) and the high end gets significantly choked.

A twin turbo setup is a waste of time and money. A well designed/planned single turbo setup will grant the same performance with less expense and a lot less custom work.

The valve stem seals are quite easy if you've got the head off.... adjust the cam lobe/lifter clearances while you're at it.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.

If you're so inclined I'm always more than happy to accept tips via PayPal.
Tip Jar --->
cre is offline   Reply With Quote
Old 12-16-2011, 03:52 PM   #3
Awyman18
3" Exhaust
 
Join Date: Apr 2011
Location: columbus
Posts: 151
Awyman18 is on a distinguished road
Default

boost controller ---> 11psi of boost will add alot, downpipe with full 3" exhaust with no cats. idk wat ur emmissions rules are but i live in ohio and thats wat i did...lol, fmic, hard pipes, u could always tear out some of the interior ad crap u dont need to make it lighter, nice cold air intake...and get a nice custom box around it so its not just sucking in hot air and i mean...thats basically it lol. u wold have to get new injectors and fuel pump if u wanted more
Awyman18 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1989 Turbo Supra FS 95% complete TehEl1te Buy/Sell Cars 8 06-15-2010 08:26 PM
My lucky find: 1989 Toyota Supra Turbo seken-cole Show n Tell 7 05-23-2010 10:55 PM
About to be handed down a 1987 Supra Turbo. Need help/Advice on restoration. j0ker MKIII Supra 2 08-09-2008 06:42 PM


All times are GMT. The time now is 10:05 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

1986



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87