--===============2229178046249250108==
--Apple-Mail=_94E7DFFB-BF26-44B1-9A74-AAD720B9629D
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charset=windows-1252
=93but what about the main jets."
ZS jets actually are adjustable, just not easily. The depth (from the =
bridge to the top of the jet) of the jets on my 175 ZS carbs can range =
from 0.085 to 0.187 inches. I have mine set at 0.125=94 deep. Don=92t =
know if 150=92s are the same but I suspect it=92s close to the same.
To adjust take a 3/8 inch bolt and grind it flat on the bottom. Put two =
nuts on to lock your =93depth setter=94 bolt and then tap the jet down =
to a measured depth (with your dial indicator). To move it up tap from =
the bottom with a Honda valve guide (or similar protection) to protect =
the jet. I=92ve set the jets with the carbs still on the carb.
0.085 is lean and 0.187 is rich so adjust accordingly. Be precise this =
is not a big range but it can make a difference.
Bud Rolofson
Extreme Parts Racing (more than just a haircut)
71TR6 CC57365 (Good 6)
71 Spitfire MK IV Race Car #3
69 Spitfire MK III (back up FE engine/dinghy car)
93 Minnie Winnie Race Support Vehicle=20
77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
On Oct 15, 2015, at 2:12 PM, Kas Kastner <kaskastner@gmail.com> wrote:
> Did you check the plugs after the overheating so that you know it was =
from fuel problems not the overheating??
>=20
> What needles are you running? How far open is the adjusting nut for =
the mixture?
>=20
> Never be beaten by equipment.
>=20
>=20
> On Thu, Oct 15, 2015 at 6:42 AM, <damys@charter.net> wrote:
> Finally got the GT6 back together and had it at Brainerd for two track =
days. First day still had overheating issues even with the oil cooler, =
external octopus oiling and scirocco rad. Also had a vibration in the =
rear.=20
>=20
> Then we fabricated a full rad shroud and re-did one of the 240Z rear =
axles. Lost all but a very minor vibration that show up at around 100 =
MPH which might just be from driving an 1800 lb car that fast.=20
>=20
> Cured the overheating and actually had to tape the rad and oil cooler. =
After many laps the water was at 200 and the oil at 220. Outside temp =
65-70 degrees.
>=20
> Our new problem is we burned the electrodes off of number 1 and 4 =
plugs. The other four looked a little lean, but not bad. We are running =
1.50 Strombergs.
>=20
> It seems to me that the stock intake is starving 1 and 4.=20
>=20
> I've read that Kas drilled the float jets to cure starvation at high =
RPM's, but what about the main jets. Will this cause serious bog at =
mid-RPM's. Also would reworking the number 1 and 4 intake runners help =
the problem. We are maxing out at 6000 RPM's.
>=20
> As for the minor vibration, we have a rebuilt, fully welded 3:89.=20
>=20
> Planning on Elkhart in the Spring. Any ideas?
>=20
> Thanks
>=20
> Dave and Alex Amys
>=20
>=20
>=20
> =20
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/kaskastner@gmail.com
>=20
>=20
>=20
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/levilevi@comcast.net
>=20
>=20
--Apple-Mail=_94E7DFFB-BF26-44B1-9A74-AAD720B9629D
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">=93but =
what about the main =
jets."<div><br></div><div><br></div><div><br></div><div>ZS jets actually =
are adjustable, just not easily. The depth (from the bridge to the top =
of the jet) of the jets on my 175 ZS carbs can range from 0.085 to 0.187 =
inches. I have mine set at 0.125=94 deep. Don=92t know if 150=92s are =
the same but I suspect it=92s close to the =
same.</div><div><br></div><div>To adjust take a 3/8 inch bolt and grind =
it flat on the bottom. Put two nuts on to lock your =93depth setter=94 =
bolt and then tap the jet down to a measured depth (with your dial =
indicator). To move it up tap from the bottom with a Honda valve guide =
(or similar protection) to protect the jet. I=92ve set the jets with the =
carbs still on the carb.</div><div><br></div><div>0.085 is lean and =
0.187 is rich so adjust accordingly. Be precise this is not a big range =
but it can make a difference.</div><div><br></div><div><br><div =
apple-content-edited=3D"true"><span class=3D"Apple-style-span" =
style=3D"border-collapse: separate; border-spacing: 0px;"><div =
style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space;"><span class=3D"Apple-style-span" =
style=3D"orphans: 2; text-align: -webkit-auto; text-indent: 0px; widows: =
2; -webkit-text-decorations-in-effect: none;"><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><span class=3D"Apple-style-span" style=3D"orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none;"><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><span class=3D"Apple-style-span" style=3D"orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none;"><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><span class=3D"Apple-style-span" style=3D"orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none;"><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><span class=3D"Apple-style-span" style=3D"orphans: =
2; text-align: -webkit-auto; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none;"><div style=3D"word-wrap: =
break-word; -webkit-nbsp-mode: space; -webkit-line-break: =
after-white-space;"><span class=3D"Apple-style-span" style=3D"orphans: =
2; text-indent: 0px; widows: 2; -webkit-text-decorations-in-effect: =
none;"><div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space;"><span class=3D"Apple-style-span" =
style=3D"orphans: 2; text-indent: 0px; widows: 2; =
-webkit-text-decorations-in-effect: none;"><div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-transform: =
none; white-space: normal; word-spacing: 0px; border-spacing: 0px; =
-webkit-text-stroke-width: 0px;">Bud Rolofson</div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-transform: =
none; white-space: normal; word-spacing: 0px; border-spacing: 0px; =
-webkit-text-stroke-width: 0px;"><br></div><div style=3D"border-collapse: =
separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-transform: none; white-space: normal; =
word-spacing: 0px; border-spacing: 0px; -webkit-text-stroke-width: =
0px;">Extreme Parts Racing (more than just a haircut)</div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-transform: =
none; white-space: normal; word-spacing: 0px; border-spacing: 0px; =
-webkit-text-stroke-width: 0px;"><br></div><div>71TR6 CC57365 (Good =
6)</div><div style=3D"border-collapse: separate; color: rgb(0, 0, 0); =
font-family: Helvetica; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-transform: none; white-space: normal; word-spacing: 0px; =
border-spacing: 0px; -webkit-text-stroke-width: 0px;">71 Spitfire MK IV =
Race Car #3</div><div style=3D"border-collapse: separate; color: rgb(0, =
0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-transform: none; white-space: normal; word-spacing: 0px; =
border-spacing: 0px; -webkit-text-stroke-width: 0px;">69 Spitfire MK III =
(back up FE engine/dinghy car)</div><div style=3D"border-collapse: =
separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; text-transform: none; white-space: normal; =
word-spacing: 0px; border-spacing: 0px; -webkit-text-stroke-width: =
0px;">93 Minnie Winnie Race Support Vehicle </div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-transform: =
none; white-space: normal; word-spacing: 0px; border-spacing: 0px; =
-webkit-text-stroke-width: 0px;">77 Z-50A Hardly Davidson Honda =
Mini-Trail Bike (Triumph Pit Bike)</div></div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-transform: none; white-space: normal; word-spacing: 0px; =
border-spacing: 0px; -webkit-text-stroke-width: 0px;"><br></div><div =
style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant: normal; =
font-weight: normal; letter-spacing: normal; line-height: normal; =
text-transform: none; white-space: normal; word-spacing: 0px; =
border-spacing: 0px; -webkit-text-stroke-width: =
0px;"><br></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline"></div></span><br =
class=3D"Apple-interchange-newline" style=3D"color: rgb(0, 0, 0); =
font-family: Helvetica; font-size: 18px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px;"><br =
class=3D"Apple-interchange-newline">
</div>
<br><div><div>On Oct 15, 2015, at 2:12 PM, Kas Kastner <<a =
href=3D"mailto:kaskastner@gmail.com";>kaskastner@gmail.com</a>> =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr"><div>Did you check the plugs after the =
overheating so that you know it was from fuel problems not the =
overheating??</div><div><br></div><div>What needles are you running? How =
far open is the adjusting nut for the mixture?</div></div><div =
class=3D"gmail_extra"><br clear=3D"all"><div><div =
class=3D"gmail_signature"><p><strong><font color=3D"#000099">Never be =
beaten by equipment.</font></strong></p></div></div>
<br><div class=3D"gmail_quote">On Thu, Oct 15, 2015 at 6:42 AM, <span =
dir=3D"ltr"><<a href=3D"mailto:damys@charter.net"; =
target=3D"_blank">damys@charter.net</a>></span> wrote:<br><blockquote =
class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc =
solid;padding-left:1ex"><div><p>Finally got the GT6 back together and =
had it at Brainerd for two track days. First day still had =
overheating issues even with the oil cooler, external octopus oiling and =
scirocco rad. Also had a vibration in the rear. </p><p>Then =
we fabricated a full rad shroud and re-did one of the 240Z rear =
axles. Lost all but a very minor vibration that show up at around =
100 MPH which might just be from driving an 1800 lb car that fast. =
</p><p>Cured the overheating and actually had to tape the rad and =
oil cooler. After many laps the water was at 200 and the oil =
at 220. Outside temp 65-70 degrees.</p><p>Our new problem is we =
burned the electrodes off of number 1 and 4 plugs. The other four looked =
a little lean, but not bad. We are running 1.50 =
Strombergs.</p><p>It seems to me that the stock intake is starving 1 and =
4. </p><p>I've read that Kas drilled the float jets to =
cure starvation at high RPM's, but what about the main jets. Will =
this cause serious bog at mid-RPM's. Also would reworking the =
number 1 and 4 intake runners help the problem. We are maxing out =
at 6000 RPM's.</p><p>As for the minor vibration, we have a =
rebuilt, fully welded 3:89. </p><p>Planning on Elkhart in the =
Spring. Any ideas?</p><p>Thanks</p><p>Dave and Alex =
Amys</p><p><br></p><div> <br =
class=3D"webkit-block-placeholder"></div></div>
<br>_______________________________________________<br>
<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a><br>
<br>
<a href=3D"http://www.fot-racing.com/"; target=3D"_blank" =
rel=3D"noreferrer">http://www.fot-racing.com</a><br>
<br>
rel=3D"noreferrer">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive"; target=3D"_blank" =
rel=3D"noreferrer">http://www.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums"; target=3D"_blank" =
rel=3D"noreferrer">http://www.team.net/forums</a><br>
href=3D"http://autox.team.net/mailman/options/fot/kaskastner@gmail.com"; =
target=3D"_blank" =
rel=3D"noreferrer">http://autox.team.net/mailman/options/fot/kaskastner@gm=
ail.com</a><br>
<br>
<br>
<br></blockquote></div><br></div>
_______________________________________________<br><a =
href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a><br><br>http://ww=
w.fot-racing.com<br><br>Donate: =
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