Jump to content
The mkiv Supra Owners Club

Still Not Right


Guest Jason1
 Share

Recommended Posts

Guest Jason1

Hi folks

 

I am sure my turbos aren't running right

I did a bit of work on the car yesterday, fitted billstein shocks (thanks to a member on here)

and I was surprised on how much stuff was loose on the car, Bottom ball joints weren't even tight? No wonder I had a few rattles

Also now full 3" system fitted.

Anyway now the car handles as it should I decided to have a spirited drive and I can just not feel any dip or a shove from the second turbo?

I have checked all connections, hoses etc and cannot find fault with anything.

 

If I drive the car (auto) I just get a pull from 3k right through. At 3k .0bar, at 3.5k .5bar and at 4k .9bar.

This is steady acceleration

However If I floor it then a boost spike to a bar the back down to .7bar then it will settle at .9bar

 

Does this seem right as I am not sure

Thanks

Link to comment
Share on other sites

The first turbo should be coming in at around 1.8K rpm the 2nd turbo at around 3.5K rpm, from your description it sounds like both turbos are set up to run in parallel.

 

Here are some threads in the FAQ section that may be of help.

http://www.mkivsupra.net/vbb/showthread.php?35924-Sequential-turbo-hoses&highlight=sequential

http://www.mkivsupra.net/vbb/showthread.php?35926-The-sequential-system&highlight=sequential

http://www.mkivsupra.net/vbb/showthread.php?27904-Sequential-turbo-problems&highlight=sequential

Link to comment
Share on other sites

Guest Jason1

Thanks for that

 

I have checked the vac lines and the operation of the Exhaust valve and they seem to be all good.

 

Could it be possible that a vsv or similar has given up and I am only using one turbo?

Link to comment
Share on other sites

Guest Jason1
The first turbo should be coming in at around 1.8K rpm the 2nd turbo at around 3.5K rpm, from your description it sounds like both turbos are set up to run in parallel.

 

Here are some threads in the FAQ section that may be of help.

http://www.mkivsupra.net/vbb/showthread.php?35924-Sequential-turbo-hoses&highlight=sequential

http://www.mkivsupra.net/vbb/showthread.php?35926-The-sequential-system&highlight=sequential

http://www.mkivsupra.net/vbb/showthread.php?27904-Sequential-turbo-problems&highlight=sequential

 

Ok

Now I have run the car in ttc mode and I hit 1.2 bar then

straight back down to .9bar

I think this is correct as I have a exhaust restrictor fitted

So turbos good?

I have put it back to how it should be and it us the same as

before, any chance a vsv is stopping one if the turbos working

correctly?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.