[Diy_efi] Tuning with too much power for dyno?

Fri Dec 20 01:26:57 GMT 2002

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Tuning with too much power for dyno?Sounds like quite a weapon!

Can i come have a look at it some day?

(I am in NZ)
  ----- Original Message -----=20
  From: Matt Porritt=20
  To: DIY-EFI=20
  Sent: Friday, December 20, 2002 2:07 PM
  Subject: [Diy_efi] Tuning with too much power for dyno?

  I've got a wee problem.

  20B (mazda) engine running Methanol, 2bar + of boost and Nitrous, =
produces too much power (torque) for the dyno (International Dynometers =
Dyno Packs - Hub)
  In 2wd mode they are good for around 800hp, but nowhere near the =
torque of the engine.
  Engine is looking to put out approx 900hp before Nitrous.
  The engine will be able to be tuned to around 5000rpm on the dyno =
before torque limits, but as its running a 5500rpm stall convertor in it =
that will pose problems also.

  Apart from making MANY drag passes and logging everything and tuning =
back from there, does anyone have some ideas that maybe we havn't =
thought of to tune this thing?

  Cheers
  --=20
  Matt Porritt
  RC Race Cars and Supplies
  ICQ #22776813

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<HTML><HEAD><TITLE>Tuning with too much power for dyno?</TITLE>
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<DIV><FONT face=3DArial size=3D2>Sounds like quite a =
weapon!</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Can i come have a look at it some =
day?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>(I am in NZ)</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dporrittm at anet.co.nz =
href=3D"mailto:porrittm at anet.co.nz">Matt=20
  Porritt</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Ddiy_efi at diy-efi.org=20
  href=3D"mailto:diy_efi at diy-efi.org">DIY-EFI</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, December 20, 2002 =
2:07=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Diy_efi] Tuning with =
too much=20
  power for dyno?</DIV>
  <DIV><BR></DIV><FONT face=3DVerdana>I=92ve got a wee =
problem.<BR><BR>20B (mazda)=20
  engine running Methanol, 2bar + of boost and Nitrous, produces too =
much power=20
  (torque) for the dyno (International Dynometers Dyno Packs =96 =
Hub)<BR>In 2wd=20
  mode they are good for around 800hp, but nowhere near the torque of =
the=20
  engine.<BR>Engine is looking to put out approx 900hp before =
Nitrous.<BR>The=20
  engine will be able to be tuned to around 5000rpm on the dyno before =
torque=20
  limits, but as its running a 5500rpm stall convertor in it that will =
pose=20
  problems also.<BR><BR>Apart from making MANY drag passes and logging=20
  everything and tuning back from there, does anyone have some ideas =
that maybe=20
  we havn=92t thought of to tune this thing?<BR><BR>Cheers<BR>-- =
<BR>Matt=20
  Porritt<BR>RC Race Cars and Supplies<BR>ICQ=20
#22776813<BR><BR><BR></BLOCKQUOTE></FONT></BODY></HTML>

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