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Brettus turbo 111 (the ultimate Renesis turbo ?)

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Brettus turbo 111 (the ultimate Renesis turbo ?)

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Old 08-18-2018, 03:06 PM
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Originally Posted by Blackwell View Post
400whp out of a renesis still pretty awesome. Is it like a too much flow threshold?
Not sure what you mean by that . The problem ,I believe , is a combination of the Siamese port issue mentioned earlier and the lack of port area as the exhaust port is closing.
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Old 09-08-2018, 08:21 PM
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More changes , boost shown on blue line above (13.5psi) , power from same log below .Feels like It's better

Last edited by Brettus; 09-08-2018 at 08:27 PM.
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Old 09-08-2018, 10:09 PM
  #1728  
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Originally Posted by Brettus View Post
More changes , boost shown on blue line above (13.5psi) , power from same log below .Feels like It's better
Go 400+!!!
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Old 09-08-2018, 10:10 PM
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Boost was jumping around at over 7000 but is now very stable everywhere . Pretty happy with this

Logs indicating :
@7psi - 300whp (minimum boost possible at 7500rpm)
@10psi - 350whp
@13.5psi -394whp
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Old 09-08-2018, 10:13 PM
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Originally Posted by slash128 View Post
Go 400+!!!
If only your dyno was close..............
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Old 09-09-2018, 11:37 AM
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Awesome work, Brett. Did your local ethanol pump get fixed, or is this straight gasoline?
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Old 09-09-2018, 01:17 PM
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Originally Posted by Brettus View Post
Boost was jumping around at over 7000 but is now very stable everywhere . Pretty happy with this

Logs indicating :
@7psi - 300whp (minimum boost possible at 7500rpm)
@10psi - 350whp
@13.5psi -394whp
Brett! Nice work! Very nice torque curve, and power / psi #s!
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Old 09-09-2018, 03:03 PM
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Originally Posted by BigBadChris View Post
Awesome work, Brett. Did your local ethanol pump get fixed, or is this straight gasoline?
Yep , it got fixed last week . ATM I'm still running E50 which I'll stay on till my next dyno.
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Old 09-09-2018, 03:06 PM
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Originally Posted by jcbrx8 View Post


Brett! Nice work! Very nice torque curve, and power / psi #s!
Cheers .... yeah the power/psi is excellent ! I know it's only virtual dyno but that has proven very accurate now that I've refined my logging .
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Old 09-09-2018, 06:45 PM
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So what did you do differently this time? If you are willing to share.

I enjoy following your progress on this thing. I will hopefully be starting on my setup shortly, this thread has been a great source of info.
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Old 09-09-2018, 07:04 PM
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This is a log at 6psi tapering to 7psi for last 1000rpm . 313whp @ 7800 . Would probably make another 20 or so if taken out to 8500.


Last edited by Brettus; 09-09-2018 at 07:10 PM.
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Old 09-09-2018, 07:09 PM
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Originally Posted by mr_squiggle_1 View Post
So what did you do differently this time? If you are willing to share.

I enjoy following your progress on this thing. I will hopefully be starting on my setup shortly, this thread has been a great source of info.

I altered the manifold . Removed the crossover tube into the siamese/wastegate pipe from front runner. then added two small diameter balance tubes from either end. Basically took some flow away from the siamese ports and made the two outer ports flow more % wise. The idea was to create the same gas velocity through all port runners .

Last edited by Brettus; 09-09-2018 at 07:13 PM.
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Old 09-11-2018, 05:45 PM
  #1738  
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Have you got any pics of the modified manifold?
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Old 09-13-2018, 11:29 PM
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So .......... had another crack on the dyno today . Red line is today's run , blue line is from march . Both were at 14.5psi so I could see if there is any major improvement . As you can see , spoolup is better and there is a tad more up top . I didn't feel the improvement was significant enough to push further and was feeling a little gun-shy so we stopped the session there .
For the virtual dyno non-believers ...check out the above VD (post 1727) against the real dyno.

Last edited by Brettus; 09-13-2018 at 11:33 PM.
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Old 09-14-2018, 05:41 AM
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Good looking curves... spool, torque, and power. Good work!

Last edited by jcbrx8; 09-14-2018 at 05:44 AM.
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