Daily Driving with 15 psi

[tjspyder]

I have searched similar topics, but no one else that I can see have the same mods as me.

Hey guys, I bought this Spyder with all parts already installed and it only has 44,xxx original miles.

Anyway, my questions is, do you guys think this is asking for problems? I am daily driving on 15 psi and I have never had any problems with anything at all (no fuel cut ever or anything). It does buck when coming off boost, but thats another issue and I am replacing plugs and wires, then boost leak testing today. I am also still on stock exhaust.

Bolt-on Modifications
EVO III 16G
Greddy huge front mount intercooler
Custom intercooler piping
HKS SSQV blow off valve
Dejon Tool turbo inlet
Greddy Profec Type-S
Vent mounted Apex-i SAFC II
Autometer boost gauge
useless Autometer narrow band a/f gauge
Tein Super Street Coilovers
RM sway bars

Let me know what you guys think.

 

[Backinajiffy12]

You should be fine I drive 15-16psi everyday you just don't wanna be on it at all times when you are just going from place to place keep it below 5psi and when you need to get up and go then hit it! But otherwise I would say just be gentle

 

[erald01]

Have had mine on 20psi for a year now, you will be trouble free if all the maintnance is done on time and as long as you dont punch it every stop light. You build your boost by controlling your foot.

 

[PSSSHHH]

I agree. Daily Driven is a big misconception. I daily drive at 29psi, but i'm no geting on it all the time. At most, on a normal day, i see 8psi. But when i want or need all 29psi it's there. Just don't be racing the car from red light to red light.

 

[matthewdesigns]

OP, they ^^ obviously do not have your mods to be running around at those pressures, even if just occasionally. Do yourself and your car a favor and rewire your fuel pump, and buy a wideband o2 setup and a logger. The rewire will give you a margin of safety with the stock pump, and the wbo2 and logger logger will allow you to monitor what is actually going on with your motor and fuel supply.

I ran 15psi before a rewire and was relatively safe, and up to 17psi after. The rewire parts will cost you ~$20, take about an hour to do, and will bump up your fuel flow to a safer level. Go here Visual Frequently Answered Questions - Home Page , click "fuel", and get to work

 

[tjspyder]

Thanks for all the quick replies, guys. That's why this forum is so awesome.

matthewdesigns, I know exactly what you are saying, as I should buy these parts ASAP. As i stated, the car was purchased with all parts, and a WB o2 and logger are for sure next on my list.

The other guys are also right though, and I may have mis-worded "daily driven" because yeah, I do not drive around hitting 15 psi all the time, only when I want it. I have not had any problems at all, so Im thinking I should be alright until I buy my next parts.

Exhaust, WB o2 sensor, logger all next on my list.

 

[matthewdesigns]

True, I don't know anyone who drives around at full boost all the time, but when you do get up there, you need to make sure that you aren't going to melt anything from running too lean. The rewire is really a great, inexpensive upgrade, and will serve to help any future pump you run to flow better as well.

Case in point: When I got my new e85 fuel setup installed, I tuned for no knock and thought I was good to go. Then I borrowed a wbo2 and found that I was running as lean as 17:1 under load, which would have nuked the motor in short order if I had not known. Not trying to scare you, just being prudent.

Good luck, and have fun with the car! That's quite a find!

 

[JrCRXHF]

daily 20PSI on 93oct the motor now has 214,000 miles on it.

The only thing that is really going wrong is it leaks oil from the main seals.

but still runs strong.

 

[JayRolla]

True, I don't know anyone who drives around at full boost all the time, but when you do get up there, you need to make sure that you aren't going to melt anything from running too lean. The rewire is really a great, inexpensive upgrade, and will serve to help any future pump you run to flow better as well.

Case in point: When I got my new e85 fuel setup installed, I tuned for no knock and thought I was good to go. Then I borrowed a wbo2 and found that I was running as lean as 17:1 under load, which would have nuked the motor in short order if I had not known. Not trying to scare you, just being prudent.

Good luck, and have fun with the car! That's quite a find!

thats funny. I try to tell people a wbo2 is essential when swapping to e85 and they dont believe me. You prove it. BigLady said he burned up a valve on a e85/gas mix in a few months.

Its crazy how lean e85 can run without knock. If you had race fuel you would have tuned a lot better because e85 is crazy stuff. I run 28-30psi on a knock happy 16g at 27* timing without any knock and have ran as lean as 14.3 afr. I run an 11.1-11.4 afr now to be safe.

 

[tjspyder]

You guys really know your stuff!

matthrewdesign, I appreciate the detail of your posts. I can can also understand how you thought you were running OK, when you really actually quite lean. Since I have no logging going on, I guess it's kind of the same situation, which made me ask this question in the first place.

For easy daily driving (literally), I think I will be alright, but if I do want to move ahead, I have to get the all the stage 1 upgrades, not just a few.

Tanks a lot so far guys!

 

[N1te]

thats funny. I try to tell people a wbo2 is essential when swapping to e85 and they dont believe me. You prove it. BigLady said he burned up a valve on a e85/gas mix in a few months.

Its crazy how lean e85 can run without knock. If you had race fuel you would have tuned a lot better because e85 is crazy stuff. I run 28-30psi on a knock happy 16g at 27* timing without any knock and have ran as lean as 14.3 afr. I run an 11.1-11.4 afr now to be safe.

That's incredible, I wish E85 was everywhere. We need to roadtrip to brazil.

 

[jerseydiver84]

15 psi on that turbo everyday shouldnt be an issue at all, just as you upgrade the car your gonna lose daily drivablility, but i wouldnt worry about it for now. also if you did your own intercooler piping and your car is bucking id definately do that boost leak check, and make sure you go with tbolt clamps.

 

[90gsx16g]

Your good to go, i ran 16psi all day everyday going to and from work on the freeway ( not staying on it the whole time of course) unless i was running late... But seriously when you get the money and time throw some 650's or something bigger then stock in there and upgrade your fuel pump to stay on the safe side. Plus in the future you'll feel better knowing you wont run into fuel cut or too lean conditions after tuning it right which involves dsm link or pocket logger ect..

 

[white90gsx]

True, I don't know anyone who drives around at full boost all the time!

MEEEE...Im always running full boost(25psi) weather im going to dinner at my parents or blowing the doors off a V8...I just cant seem to stay outa boost it the greatest thing when you get all four wheels to break loose!!!...Hmmm maybe thats why my turbo took a shit and I get 10mpg..???

 

[jerseydiver84]

^^^^10mpg and a blown turbo, well it seems well worth blowing the doors off a v8 and breaking 4 tires loose, i just wanna go fast and if your not first your last so booooost.

 

[white90gsx]

^^^^10mpg and a blown turbo, well it seems well worth blowing the doors off a v8 and breaking 4 tires loose, i just wanna go fast and if your not first your last so booooost.

Yup blowing the door off one of the biggest shit taking v8s was well worth it.

 

[JusMX141]

I have one buddy that daily drives his '95 TSi AWD with the OEM 7-bolt (139k) at 22-25psi.

Another buddy of mine daily drives his '95 Eclipse GSX with a fully built 6-bolt and meth injection at 34psi. That car's a freakin' rocket.


Neither of them are wide open for more than .01% of their time behind the wheel on the street....only when tuning. With a good tune, you can practically run any max boost level you want.

 

[SonySlave]

Has nobody else noticed that he says he has an E316G on the car with no additional fuel mods minus a S-AFC? I can understand running the stock T-25 at 15-16psi on stock injectors and pump, but an E316G flows a lot more air as you all know.

I can't make a determination as to what his car is doing without a logger and/or wideband, but I would think that he'd be running very lean with his current fuel setup with no S-AFC correction. The S-AFC helps, but then if he's adding fuel, then he'd start horribly outflowing his 450s.

Anyone else agree with me?

 

[cano86]

Mine is mostly stock but I drive it at 16Psi. I do push it to the limit a lot so am glad is still running. Its been over 2.5 months and all I've done is oil,filter,plug, changes thats about it. I know I dont really take care of this car but is just that I went through a lot with it when I bought it and needs a lot of work so I'll just drive it like this until I gather up some money and most likely in a month or two I can have my 1g or 2g AWD then I'll take care of it.

 

[matthewdesigns]

Has nobody else noticed that he says he has an E316G on the car with no additional fuel mods minus a S-AFC?

I can't make a determination as to what his car is doing without a logger and/or wideband,

Anyone else agree with me?

Those were my points in post #5. At least the OP is paying attention to the reasonable responses, and not just going nuts with the car.

 

[vannaksgsx]

That bucking problem...did you ever figure that out? Are you recirculating your BOV? I've been doing some research and found out some interesting stuff about air/fuel.

Read below if youre still having that problem. It may help, it may not - give it a shot if nothing else works. Good Luck!

http://www.dsmtuners.com/forums/bolt-tech/834-venting-atmosphere.html?perpage=25&pagenumber=1

Vannak

 

[tjspyder]

You guys are really good, I've never been in a forum so helpful!

First off, Sonyslave, I understand that running a 16G on stock fuel system is risky, that has been established with many other threads. My question was am I SAFE running 15 psi until i get the fuel pump, injectors, etc. with the parts that I have...from what I've been getting so far, I should not be too worried.


matthewdesigns, as I have said before, I really do appreciate your time into this thread, and you are correct, I do want to build this car right, so I am listening to everyone and all their opinions!

Thanks guys, I can't keep up!

PPPSSS

Sorry, I forgot about the BOV recirc. question...

It does not matter if I am recirculating my SSQV or venting my type RS (RICER ALERT), it drives the same, it bucks when i let off the gas at about 3,000 - 5,000 rpm.

I still have to do the plugs and wires, but when i do, I will post results.

 

[vannaksgsx]

Sorry, I forgot about the BOV recirc. question...

It does not matter if I am recirculating my SSQV or venting my type RS (RICER ALERT), it drives the same, it bucks when i let off the gas at about 3,000 - 5,000 rpm.

I still have to do the plugs and wires, but when i do, I will post results.

So you are recirculating...

I'll keep this thread in the files just in case I run across a similar problem- As I've yet to drop my motor.

Vannak

 

[tjspyder]

Ok, as of right now I am venting my Type RS because a local kid told me he would buy my SSQV with recirculation kit, so I swapped with the RS the car came with. The kid then, of course, disappeared not replying to my messages .

Thats why I am venting right now, but yeah, it bucks if I am venting or recirculating. I still have a boost leak test to do and (I know it's been said before) all clamps and everything seem to be all tight.

Another PS, I still have to do the plugs and wires because the guy at the local parts store ordered me MSD wires for the 420A engine....Christ sake.

So you are recirculating...

I'll keep this thread in the files just in case I run across a similar problem- As I've yet to drop my motor.

Vannak

 

[vannaksgsx]

Another PS, I still have to do the plugs and wires because the guy at the local parts store ordered me MSD wires for the 420A engine....Christ sake.

Right on. Just keep us updated every step of the way. A newbie like me could use all the info I can get!