Redtop SR20 throttle body vs SE-R TB pics!

[ou1848]

A couple of months ago, while driving on the highway I started noticing a LOT of vibration in my gas peddal, especially at higher RPMs. Below 4k it would be fine, but then it would vibrate so much under my foot over 4K that my foot would start to itch.

When I got around to checking it I found out that the shaft the throttle cable rotor was bolted to, which straddles the intake plenum was able to move in and out about 1cm..where there should be NO play (obvisously).

This is on a redtop SRthe residue you see was my first failed attempt to fix the problem with some jb weld stuff

I finally realized that i probably broke it when I tried to bend the throttle rotor while installing my Greddy intake.

...anyway

So I tried to source another TB and happened to get a free Sentra SE-R TB which I had heard varying answers on with regards to fitment on the Redtop SR. So here are the pics... SR is on the left



As you can tell...there aren't many differences between the two. The size is absolutely identical. The only differences are the dirction of the coolant lines. For SR one line comes from the front, the other from the back. On the Sentra, both are from back.

The spring is a bit thinner and lighter on the Sentra, plus the bend that attaches to the Throttle rotor is in the wrong orientation, so just unwind one and replace it with the SR.

Spring Pics:

SR spring is on the Right and you can see the 90 degree bend that the Sentra spring does not have. spring removed:

after bolting everything back on...4 bolts plus 2 coolant lines, here is the finished product.

the only thing I didn't discuss is the hookup of the TPS sensor, but it's easy. I had a SAFC, so just checked idle voltage and when I bolted it back on the SE-R TB, just set it to the same voltage at idle. I didn't rewire anything, since the SR tps fits.

Voltage that I had :0% throttle: 0.380-0.390100%: 3.975-3.880

hopes this helps some people

mark

[180fan]

dude nice work. This deserves a bump and you should post this into the sr parts compatability list as a verified.

[ou1848]

thanks.....

where do I post that in the verified section? I just reposted it in the SR talk section...but I'm not sure about the rest of it.

mark

[180fan]

oh i'm just sayin toss that up in the SR parts compatability list and tell them you've verified that they work

http://www.nissaninfiniticlub....30274