Jump to content
The mkiv Supra Owners Club

Dawes Boost Control...


Myles

Recommended Posts

Has anyone here used/considered using one of these as a method of boost control . Looks like a discreet & cheap (like me - hey , I'm nothing if not cheap) method .

I'm thinking of getting one , along with some CW decat pipes ...I'll even keep my orange repeater lights , to maintain the stealth effect !

Link to comment
Share on other sites

Hi Myles

 

I just bought one, got it right here...looks OK.

 

There's no way I can justify 300 quid or whatever for an electronic controller when a manual one costing 50 quid does just as good job.

 

My feeling is, you'd play with the features for about a week, then once you are happy with the boost setting you'd just leave it at the same level anyhow. Might as well have a nice discrete manual controller tucked out of sight in the engine bay.

 

IMHO...

 

You can get them in the UK from Performance Exhausts

Link to comment
Share on other sites

Originally posted by paulrenn

There's no way I can justify 300 quid or whatever for an electronic controller when a manual one costing 50 quid does just as good job.

 

It depends an electonic controller can bring on boost sooner and keep it stable for longer (because it's basically continually adjusting the amount of "bleed" from the system). It really depends what your after, the 50 quid part will do the job.

Link to comment
Share on other sites

Originally posted by banaman69

so when i enquired about the dawes device boost controller i would only need one as there is only one wastegate is that correct,its just that the guy said i needed 2.

 

I think the guy is assuming that the turbo's work in parallel which in that case would have two wastegates.

Link to comment
Share on other sites

Like the sound of this....

not that I'm a cheapskate, but, as mentioned above, I might want

to increase boost (a little) but won't want to vary it.

 

(and also don't really want any more 'bits' in dashboard)

 

I presume it must be of UTMOST importance to

have boost gauge fitted first as there's no way of checking/

setting Dawes otherwise ?

:stupid:

 

[ Is it REALLY as easy as it seems to fit ? just a simplified version

of a 'Boost Controller' ? ]

 

Simple-Steve.:p

Link to comment
Share on other sites

Hi Steve

 

You just install it in the wastegate line, take it for drive, then adjust in small increments until you achieve the desired boost pressure. Yes, you'll need a gauge so that you can verify the pressure. There are installation notes on the Dawes US website.

 

I haven't done it yet, but will be doing it at the end of September. If no-one's pioneered it by then I can write it up. It might be on the mkiv.com website already, haven't checked.

 

I bought it after seeing it recommended on the US mkiv list. There are two versions, one is the "race" type and is supposed to act a tiny bit quicker, but I just went with the "normal" type.

 

At least you know this can't really fail, unless the hoses fail, and doesn't need power etc etc. Just an easy and discrete installation.

Link to comment
Share on other sites

Originally posted by banaman69

ill have to wait about a weekso probably be fitting next weekend.ill let you know.

i did call back to change the order to 1 controller instead of 2.hoping that my car has the 1 wastegate line is this correct anyone?

 

Yes, just the one. There is a wastegate on #1 turbo (the one at the front of the engine) which controls the boost level when both turbos are onstream.

 

However, there is also a valve called the exhaust gas bypass valve that a) prespools #2 turbo, and b) controls the boost level of #1 turbo when only that one is onstream. You can fit a bleeder type thing on this as well to up #1 turbo's boost when below 4000rpm. More wellie lower down the rev range then :)

 

-Ian

Link to comment
Share on other sites

Originally posted by Ian C

However, there is also a valve called the exhaust gas bypass valve that a) prespools #2 turbo, and b) controls the boost level of #1 turbo when only that one is onstream. You can fit a bleeder type thing on this as well to up #1 turbo's boost when below 4000rpm. More wellie lower down the rev range then :)

 

-Ian

 

Martin F had a bleeder T turned into an H that I was using on my Supra TT, not sure if he's got round to putting in on or if he had a good as a increasde as I did.

Link to comment
Share on other sites

Guest Martin F

Not yet mate, started setting up my DSBC but not happy with all my settings yet. As soon as i have that sorted then i'm going to put the bleeder T in for No1 turbo.

 

Will let peeps know.

Link to comment
Share on other sites

Originally posted by Ian C

This is the setup I used, I based it on the H-welded bleeder T but it's simplified in that there is no welding required, just an extra toob.

 

I cheerfully run 0.9bar on #1 turbo now - nice "boost" to driveability, ahaha.

 

-Ian

 

Blue spaghetti :eek: :)

 

A more subtle options

 

http://www.imagestation.com/picture/sraid30/pd0c4c5310745060a383f9c7a4f59e10b/fd4ff0bf.jpg

 

or no 'welding' version

 

http://www.imagestation.com/picture/sraid30/p6b206b805f16034df72d5f9fa0ecc73d/fd4ff00f.jpg

Link to comment
Share on other sites

  • 3 weeks later...

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.

×
×
  • 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.