Subject: Re: [Spridgets] redline?

From: HealeyRick via Spridgets <[email-masked]>
Date: Thu, 13 Aug 2020 14:42:20 -0400

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Standard advice is to twist it until it breaks and back off 500 rpm.
Seriously, I have a balanced 948, bored to 998. Stock rods, flat top
pistons 88G 229 cam and 4:55 rear end.  I usually shift at 6,000 rpm during
an autocross and run it between 5 and 5.5k on the highway.  A well balanced
948 will rev pretty good.  Motor has over 20k mi on it and no signs of
breakage, but YMMV may vary and remember the other old saying, "You break
it, you bought it."

Rick Neville

On Thu, Aug 13, 2020 at 8:59 AM Ryan Kubanoff via Spridgets <
[email-masked]> wrote:

> I have a modified 948 engine in my bugeye. Its been bored to 998, ported
> polished, balanced and with a mid range camshaft and lightened flywheel. It
> runs beautifully at 4500 RPMs on the highway but that redline is easy to
> get close to when enjoying the late summer nights. Is the original redline
> accurate for the modified engine and how do you know what makes redline? I
> don't want to risk damaging the engine but I also don't want to baby it.
> Ryan
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<div dir=3D"ltr">Standard advice is to twist it until it breaks and back of=
f 500 rpm.=C2=A0 Seriously, I have a balanced 948, bored to 998. Stock rods=
, flat top pistons 88G 229 cam and 4:55 rear end.=C2=A0 I usually shift at =
6,000 rpm during an autocross and run it between 5 and 5.5k on the highway.=
=C2=A0 A well balanced 948 will rev pretty good.=C2=A0 Motor has over 20k m=
i on it and no signs of breakage, but YMMV may vary and remember the other =
old saying, &quot;You break it, you bought it.&quot;<div><br></div><div>Ric=
k Neville</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=
=3D"gmail_attr">On Thu, Aug 13, 2020 at 8:59 AM Ryan Kubanoff via Spridgets=
 &lt;<a href=3D"mailto:[email-masked]">[email-masked]</=
a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0p=
x 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u=
></u>

 =20
  =20
=20
 <div>
  <div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;color=
:rgb(51,51,51)">
   <span style=3D"font-family:helvetica;font-size:12pt">I have a modified 9=
48 engine in my bugeye. Its been bored to 998, ported polished, balanced an=
d with a mid range camshaft and lightened flywheel. It runs beautifully at =
4500 RPMs on the highway but that redline is easy to get close to when enjo=
ying the late summer nights. Is the original redline accurate for the modif=
ied engine and how do you know what makes redline? I don&#39;t want to risk=
 damaging the engine but I also don&#39;t want to baby it.</span>
   <br>
  </div>
  <div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;color=
:rgb(51,51,51)">
   <span style=3D"font-family:helvetica;font-size:12pt">Ryan</span>
  </div>=20
 </div>
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</blockquote></div>

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