TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Schrader valve for HSR not same as TPI! Need correct part!
I took my schrader valve off of my TPI fuel rails to install it on my HSR in order to check my fuel pressure but it doesn't fit. The TPI valve has coarse threads and the HSR has fine. Does anyone know the Napa part for this? I have a hypertech fuel pressure gauge that I used on my TPI and want to keep using it to check my HSR.
If anyone has a part number for this please let me know.
Originally posted by IROCZZ3 The threads in the HSR rails are 1/8" NPT, and I assume the Hypertech gauge is a -4AN.
Just use a straight -4AN to 1/8" NPT adapter, Aeroquip part # AER-FCM2001.
$2.95 from Summit.
What he said. I ordered mine from GRAINGER. I ordered them through the place I work. They wont sell to general public. If you need one I have extra. I can mail you one of mine. Go to stealthram.com and check out their boards. This question was already raised. Also, click on their parts list and scroll down and read about it.
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Originally posted by CaptPicardsZ28 What he said. I ordered mine from GRAINGER. I ordered them through the place I work. They wont sell to general public. If you need one I have extra. I can mail you one of mine. Go to stealthram.com and check out their boards. This question was already raised. Also, click on their parts list and scroll down and read about it.
How much do you want for one of your extras? I can paypal you the amount today. I want to have it available by next week - Friday - Track time!
Originally posted by 86WS6_T/A hmm, my HSR's fuel rails came with a schrader valve..
They sure did! If you are running the NOS kit for TPI, you know you need to get the right schrader valve if you want to keep the system on your new HSR. Also, the hypertech fuel pressure gauge will not work on the HSR valve.
Originally posted by chevyengr They sure did! If you are running the NOS kit for TPI, you know you need to get the right schrader valve if you want to keep the system on your new HSR. Also, the hypertech fuel pressure gauge will not work on the HSR valve.
