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 03-22-2011, 01:52 PM   #1
sassan
Intake
 
sassan's Avatar
 
Join Date: May 2010
Location: rialto
Posts: 48
sassan is on a distinguished road
Default how much boost is to much

i have a 87 turbo supra and im about to buy an intercooler kit and a boost controller. my ?s are at wat point does the stock turbo max out? how much boost can i run on my stock engine without hurting my it? and at wat point do i need or will i need a bov?
sassan is offline   Reply With Quote
Old 03-22-2011, 10:49 PM   #2
cre

Toyota
Racing
Development
 
cre's Avatar
 
Join Date: Apr 2007
Posts: 5,036
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

How much boost the engine will take is more an issue of fuel supply. The engine itself should take as much as the CT-26 is capable of while still in it's range of efficiency. Running lean, a bad head gasket, high engine temps and carbon buildup are the largest concerns when just pushing the CT-26.

The CT-26 is efficient up to between 12 and 14psi, after that the air it's pushing out is hot to the point that you're more likely to lose power due to the ECU pulling ignition advance.

The OEM bypass valve will handle 14 or so psi but naturally that depends on what shape it is currently in. If it needs replaced I would go with a Bosch, they're inexpensive and plumb right in. I do not recommend going with an atmosphere vented BOV if you don't have the ability to tune for it (which you don't).
__________________
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
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
low boost psi, wtf supradad86_5 MKIII Supra 4 02-09-2014 03:05 AM
1jzgte no boost???????????????? MAP sensor? You have one? AlexSchuSupra MKIII Supra 3 06-17-2010 09:10 PM
issue w/ boost spikes? i think? NOTORIOUS VR Non-Generation Specific Questions 17 01-17-2007 08:35 PM
installing manual boost controller 1989?? hamburgler MKIII Supra 4 07-13-2005 01:55 PM
No boost in neutral but boost in gear! edgardo MKIII Supra 5 10-09-2004 05:01 AM


All times are GMT. The time now is 03:25 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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