--===============0721007673672876635==
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I don=92t have any experience with TR4 ZS carbs so I=92m not sure. I=92ve =
only worked with TR6 era ZS carbs.
One would think they hadn=92t changed that much so that might work.
Bud=20
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 16, 2015, at 11:17 AM, rkramer3@austin.rr.com wrote:
> Can't you use the adjustable jets from the ZS carbs on a TR4?
>=20
> Bob Kramer
> rkramer3@austin.rr.com
>=20
> ---- Bud R <levilevi@comcast.net> wrote:=20
>> =93but what about the main jets."
>>=20
>>=20
>>=20
>> 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.
>>=20
>> 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.
>>=20
>> 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.
>>=20
>>=20
>> Bud Rolofson
>>=20
>> Extreme Parts Racing (more than just a haircut)
>>=20
>> 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)
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>> On Oct 15, 2015, at 2:12 PM, Kas Kastner <kaskastner@gmail.com> =
wrote:
>>=20
>>> 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
>>=20
>=20
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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;">I =
don=92t have any experience with TR4 ZS carbs so I=92m not sure. I=92ve =
only worked with TR6 era ZS carbs.<div><br></div><div>One would think =
they hadn=92t changed that much so that might =
work.</div><div><div><br><div apple-content-edited=3D"true"><span =
class=3D"Apple-style-span" 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; =
text-align: -webkit-auto; text-indent: 0px; text-transform: none; =
white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
border-collapse: separate; orphans: 2; widows: 2; border-spacing: 0px; =
-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-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 </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></div></span></div></span></div></span></div></span=
></div></span></div></span></div></span>
</div>
<br><div><div>On Oct 16, 2015, at 11:17 AM, <a =
href=3D"mailto:rkramer3@austin.rr.com";>rkramer3@austin.rr.com</a> =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite">Can't you use the adjustable jets from the ZS carbs on a =
TR4?<br><br>Bob Kramer<br><a =
href=3D"mailto:rkramer3@austin.rr.com";>rkramer3@austin.rr.com</a><br><br>-=
--- Bud R <levilevi@comcast.net> wrote: <br><blockquote =
type=3D"cite">=93but what about the main jets."<br><br><br><br>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.<br><br>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.<br><br>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.<br><br><br>Bud =
Rolofson<br><br>Extreme Parts Racing (more than just a =
haircut)<br><br>71TR6 CC57365 (Good 6)<br>71 Spitfire MK IV Race Car =
#3<br>69 Spitfire MK III (back up FE engine/dinghy car)<br>93 Minnie =
Winnie Race Support Vehicle <br>77 Z-50A Hardly Davidson Honda =
Mini-Trail Bike (Triumph Pit =
Bike)<br><br><br><br><br><br><br><br><br><br><br><br><br>On Oct 15, =
2015, at 2:12 PM, Kas Kastner <kaskastner@gmail.com> =
wrote:<br><br><blockquote type=3D"cite">Did you check the plugs after =
the overheating so that you know it was from fuel problems not the =
overheating??<br><br>What needles are you running? How far open is the =
adjusting nut for the mixture?<br><br>Never be beaten by =
equipment.<br><br><br>On Thu, Oct 15, 2015 at 6:42 AM, =
<damys@charter.net> wrote:<br>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. <br><br>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. <br><br>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.<br><br>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.<br><br>It seems to me that the stock intake is starving 1 =
and 4. <br><br>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.<br><br>As for the minor vibration, we have a rebuilt, fully =
welded 3:89. <br><br>Planning on Elkhart in the Spring. Any =
ideas?<br><br>Thanks<br><br>Dave and Alex =
Amys<br><br><br><br><br><br>______________________________________________=
_<br>fot@autox.team.net<br><br>http://www.fot-racing.com<br><br>Donate: =
http://www.team.net/forums<br>Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/kaskastner@gmail.com<br><br><br>=
<br><br>_______________________________________________<br>fot@autox.team.=
net<br><br>http://www.fot-racing.com<br><br>Donate: =
http://www.team.net/forums<br>Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/levilevi@comcast.net<br><br><br>=
</blockquote><br></blockquote><br></blockquote></div><br></div></div></bod=
y></html>=
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http://www.fot-racing.com
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