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hauss 01-11-2019 11:24 AM
Backdraft tires
 
I was hoping to get some input on tires for my car for summer time use. I am currently running nittos nto5 on the car it has 335 on the back 17" rims . I still am a newbie butt I noticed the car wants to grab everything! BY this I mean you know how semi trucks leave low spots on asphalt my car wants to jump from side to side grabbing traction. Please share your thoughts on tires and sizes for front and rear. keep in mind however I want performance tires.

bobcowan 01-11-2019 08:09 PM
Tires are not the problem. First thing to check would be air pressure; 24-26psi would be a good starting point.

Also check your alignment specs, front and rear.

If those check out, start looking for something loose, or broken.

hauss 01-11-2019 10:11 PM
tracks straight on smooth road could use higher quality shocks might that be the problem?

Danr55 01-12-2019 02:54 AM
What rearend are you running? How is it set up?

bobcowan 01-12-2019 07:01 AM
Quote:
Originally Posted by hauss (Post 1456560)
tracks straight on smooth road could use higher quality shocks might that be the problem?
Possibly. If they're blown out and leaking, replace them. Otherwise, look at the set up first.

hauss 01-12-2019 04:04 PM
Quote:
Originally Posted by Danr55 (Post 1456563)
What rearend are you running? How is it set up?
It has the bmw e36 with 1/8 longer bolts locktighted to flange on dif side (No more backing out problems ). yes it is a lsd. Also I would love to hear about tire sizes and brands others are installing on their cars.

hauss 01-12-2019 04:21 PM
Quote:
Originally Posted by bobcowan (Post 1456556)
Tires are not the problem. First thing to check would be air pressure; 24-26psi would be a good starting point.

Also check your alignment specs, front and rear.

If those check out, start looking for something loose, or broken.
First I would like to say I took a look at your car and I love it! I talked to some vintage racers and they said their car act up at low speeds too, is this normal? with sticky tires ? also 335 35 17 on rear and 255 40 17 on front. everything is tight and in proper working order the only thing is it has not been in the alignment shop but at speed the problems go away other than a little steering wheel flutter in corners handles like a dream.

bobcowan 01-12-2019 04:33 PM
Thanx. :) I'm still learning how to drive this beast. Very different than the previous car.

If it hasn't been to the alignment shop, do that. To get the most out of the engine, you have to spend some time tuning it. To get the most out of the chassis, you have to spend some time tuning that as well.

hauss 01-13-2019 07:51 PM
will do thank you.I spent a little time jetting the quickfuel carb was way to rich cleaned up the bottom and mid but lost a little on top.spark plugs are now tan may fatten up just a tad on the mains and see what happens

Gaz64 01-13-2019 11:24 PM
Quote:
Originally Posted by hauss (Post 1456664)
will do thank you.I spent a little time jetting the quickfuel carb was way to rich cleaned up the bottom and mid but lost a little on top.spark plugs are now tan may fatten up just a tad on the mains and see what happens
If you happy with the bottom and middle, increase the fueling under load with the PVCRs, but I would decrease the high speed air bleeds about .004 as a first step.

Gary

hauss 01-14-2019 04:21 PM
Not sure what you mean wont that decrease the top end are you saying do this after I jet up the secondarys?

hauss 01-14-2019 04:25 PM
one more thing I switch from a 6.0 to 4.5 I have 0 vaccum big cam at idle

Gaz64 01-16-2019 04:35 PM
Decreasing the high speed air bleeds has the same effect as increasing the main jet size, but affects the top end more.

So if you happy with bottom end, play with the air bleed size for top end.

Decrease bleed size for less air, richer

Increase for more air, leaner.

Gary

hauss 01-16-2019 06:03 PM
Quote:
Originally Posted by Gaz64 (Post 1456830)
Decreasing the high speed air bleeds has the same effect as increasing the main jet size, but affects the top end more.

So if you happy with bottom end, play with the air bleed size for top end.

Decrease bleed size for less air, richer

Increase for more air, leaner.

Gary
THANK YOU . I still am new to this so your info is very helpful .I will try your recommendations and let you know how well they worked. It is raining here so it may take a little while.

hauss 01-21-2019 11:04 AM
Quote:
Originally Posted by Gaz64 (Post 1456830)
Decreasing the high speed air bleeds has the same effect as increasing the main jet size, but affects the top end more.

So if you happy with bottom end, play with the air bleed size for top end.

Decrease bleed size for less air, richer

Increase for more air, leaner.

Gary
Just wanted you to know I have been pm. ing you but dosent seem to be getting threw not sure why.Have lots of pics of carb for you will send with email if you would like pm me with email. Thanks again for all your help.


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