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Turbo Fuel System, Tire Size, and Gauges

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Walkin' Bear

10+ Year Contributor
73
0
Feb 15, 2011
smyrna, Tennessee
Ok I have gotten my hands on enough cash to put more time into my car. Today I finally got the lugs that I had such problems with. I got my FPR set up decent now, it's running 62 1/2 pounds/hour. Made sure I do have the fuel pump set up right. Got my down pipe secured for the third time, my motor keeps bouncing the bolts out... Idiot put them in and stripped them and just didn't feel like I should know I tried what I could last time I put them in this time I had my tools and what not to get them done right.
Now this Friday I plan on hitting up the wallet again to get some more stuff tended to. Here is what I'm going to get but need some help on what exactly it should be
- fuel injectors top priority right now I have 48 lbs injectors I think I have to bump these up to bout the same as my FPR... Right??? Can I go over that though like instead of 62 1/2 could I use 68 lbs injectors or would that cause any issue I don't know about? With this upgrade I'm also redoing the lines for fuel from tank to injectors and all the connection points.
- Tires finally been needing them badly for two months only question here is I want the tire to be smaller height wise by just a little bit which number gets smaller on the tire to do this they are ....245/45r17 if not mistaken the I need to make them 245/35r17 to make my height drop correct instead of making the tire more narrow.
- gauges/ sensors- I'm swapping boost gauge and going with digital/ analog instead of analog. Also going to get my air flow sensor hooked back Up not sure when it got disconnected but getting that back. Um only real question for this one is in order to know what my A/F ratio is I need some way to see it like a gauge or logger but what do I need to get a gauge to work for this one?

Please bare with me y'all I never was very strong with motors I always was involved in audio and such inside tw car just now getting my head up with the motor stuff so help is very needed and appreciated!
 
- fuel injectors top priority right now I have 48 lbs injectors I think I have to bump these up to bout the same as my FPR... Right??? Can I go over that though like instead of 62 1/2 could I use 68 lbs injectors or would that cause any issue I don't know about? With this upgrade I'm also redoing the lines for fuel from tank to injectors and all the connection points.
Either something's missing from your profile, or you're doing this terribly wrong. For a basic setup, you need a 12:1 FMU (not a 1:1 AFPR), a Walbro 255lph HP fuel pump (it must be the "HP" type), the stock FPR, and stock fuel injectors. For a small/mid-size turbocharger (T3, 16G, etc.), this configuration is good for around 8psi.

You might also consider a properly calibrated S-FMU, Walbro 255lph fuel pump, and upgraded fuel injectors.

I don't know how your current rig is working at all, but I'd recommend removing it before you damage your engine. You can't use just a 1:1 AFPR without some way to electronically control the fuel injectors (i.e. MegaSquirt EMS).


- Tires finally been needing them badly for two months only question here is I want the tire to be smaller height wise by just a little bit which number gets smaller on the tire to do this they are ....245/45r17 if not mistaken the I need to make them 245/35r17 to make my height drop correct instead of making the tire more narrow.
That's correct, you want a smaller aspect ratio:

Tire Tech Information - Tire Size Guide


- gauges/ sensors- I'm swapping boost gauge and going with digital/ analog instead of analog. Also going to get my air flow sensor hooked back Up not sure when it got disconnected but getting that back. Um only real question for this one is in order to know what my A/F ratio is I need some way to see it like a gauge or logger but what do I need to get a gauge to work for this one?
Air flow sensor? Your car has an airflow sensor?

Like phunny suggested, I recommend an wideband oxygen sensor system over an simple A/F gauge. The Innovate LC-1 line is cheap but dependable.
 
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