V8s_are_slow

okay, just doing some pricing and wondering what all gauges i should be getting. here's the gauges i already have in mind.

boost, egt, a/f, fuel pressure, and water temp.

is there any other gauges that would be recommended for a definate need for an aftermarket gauge (oil pressure? oil temp? etc.)? or will the stock gauges do just fine other than the gauges i have listed? thanks!
scott

sorry, a goal of 400-450 horsepower is what i'm shooting for and want optimal tuning capabilities.....

spurvo

intake temp? Stock oil pressure sender is prone to failure (badly designed, whoda thunk it?) so look towards the pressure temp wrt oil too.

rynberg

A few things to keep in mind with EGT and A/F gauges:

EGT gauge: To be worth anything, the sender should be located in the exhaust manifold and not in the downpipe.

A/F gauge: ANY A/F gauge relying on the stock 02 sensor is less than worthless. The only way to really know your A/F ratio is with a wideband 02 sensor. Since these don't last that long, they should only be used for tuning. Greddy makes an A/F gauge that comes with it's own "wideband" 02 sensor that is supposedly pretty accurate.

Also, the stock oil pressure gauge works great WHEN the sender isn't acting up.

V8s_are_slow

guess i should just start out getting a new sensor for the oil pressure gauge then. as for the egt and a/f info, i knew that but thanks. except, couldn't i just get a wideband to use and get another type of gauge? cause i don't really want a greddy gauge.

but other than that, just wanted to make sure there's nothing else i need to be concerned with cause i know the water temp is something i'd have to keep an eye on. what about oil temp? would that matter much? any other gauge i could possibly use that would be helpful.....or used as a safety feature to keep from screwin up the motor? hmmmm.....knock sensor type of gauge maybe? or would i be too late if i get one little ping of knock?

thinking about getting the defi gauges (cause i hate converting bar, etc.) so that all the gauges at least match. thanks for the input.
scott

rynberg

You could use a "generic" wideband 02 sensor with any gauge that used the same voltage readings. BUT, wideband 02 sensors usually don't last long enough to use them in daily driving.

I have ordered the Link series of Defi gauges -- boost, water and oil temp. They should be installed over THanksgiving weekend using FlyRx7's speaker gauge pod. I'll be posting pics early next week if you want to wait to see what they look like....

In reality, I think you really only need boost and water temp gauges for daily driving. Other gauges like EGT and A/F are useful for tuning but they'll just take up space for daily use. Gauges like oil temp and fuel pressure may also be useful for daily driving. I guess it comes down to how paranoid you are....

V8s_are_slow

well what i'd like to have is 3 gauges on a pillar. boost, egt, and fuel pressure. and then maybe 2 or so more gauges elsewhere. maybe an a/f gauge... www.jumptronix.com ... on the steering column.

anyone know if autometer makes a 3 pod pillar replacement for the 3rd gen? i hate those 2 pod tack on pods. i'd rather have a full replacement but need it to hold 3 gauges. thanks.
scott

PVerdieck

In the next 2 months, TriPower should have an A-pillar triple pod out. It replaces the entire A-Pillar trip piece.

https://www.rx7club.com/forum/showth...hreadid=128193

V8s_are_slow

cool deal. thanks for the info.
scott

Nathan Kwok

Another important one while you're at it is an oil temp guage. I'd get one of those before an EGT gauge, since you're not going to be tuning with EGTs (well, maybe you are?) anyway. I have an A/F gauge to go along with my J&S, and one cool thing about it is you can tell if you're in open loop or closed loop mode by looking at it, which helps if you want to save some gas. Imagine that, trying to save gas... Other than that I have to say its pretty useless though.

Cetchup

Get a water temp gauge. As soon as the stock gauge goes up, it's already too late.

dis1

I hear a lot of people saying A/F is useless. I would have to disagree. Now naturally you can't tune with it unless it's using a wide band but you can tell if something is wrong. For example after I got my A/F gauge I found out that the 3K hesitation is a full lean condition. Pretty obvious I guess but it's nice to see. The A/F also reacts instantly so if something were to happen like a loose plug wire I would have a gauge that tells me something is wrong and isn't that what gauges are for?

I think that water temp and boost are most important followed by things like oil temp, fuel pressure and so on depending on your mods and needs.

V8s_are_slow

speaking of a/f gauges, it's also a good reason to have an egt. if you run lean of course, the egt's are gonna go up. heck, what if your O2 sensor is going bad? then you at least have a egt as a back up. i kind of use the egt and a/f gauge and compare the both of them. they're a must if you're gonna tune at all. if you're gonna richen or lean or mess with your fuel system at all you have to have it. fuel pressure gauge comes in handy when maxing out injectors so you know when to upgrade....as well as when you're adjusting your adjustable fpr. water temp, boost gauge, and oil pressure are obvious one's. some sort of knock sensor gauge is good too.....but i don't know how much knock (if any) these engines can take. if it can't take any, then i guess it wouldn't be useful.
scott