Chicago Crew Thread #2

[Todd95VR4]

Originally Posted by 440 4x4

Todd, did you continue having the same symptoms after we talked about two weeks ago, when you were going to have the alternator tested?

Jeff, It would come and go. When I took it in to have the alt & batt checked, of course it was working fine and no problem was found. However, the idiots there at Pepboys didn't notice the broken cable. (I only went there because it's walking distance from home in case I'd have to leave it a while.) But even I didn't notice the problem and it's my car! It took the eagle eye of Curtis to find it. But I don't know if that was a contributing factor of my alt going out or just coincidence. I remember calling Jim a couple of years ago when my car was acting up somewhat similar to this and if I remember right, my alt was fine, it was the batt so I got that replaced. So I'm not sure how old my alt is. I need to dig thru records, but I don't think it's ever been replaced in the 7 years/80,000 miles I've owned the car. I could be mistaken about that though.

[saiyin car]

Originally Posted by 440 4x4

Todd,

If you don't mind, please keep us updated as to whether the new alternator solves the issues you are having - as that will help EVERYONE in the future.

Oh, and have some fun in California and try and forget about the car for awhile.

-Jeff

ok the SVT took a crapo on me today so its in the shop. unfortunatly i had to bring teh VR4 out a week early thats ok but on my way to work i noticed that when i romped on it the car would almost start bucking like a bull. only at higher rpm's and only only in second and third gear, is this compressor surge or something much less involved like im running so pig rich im chocking it with too much fuel? i also noticed that the BOV was tweeting longer than usual. instead of a sharp fast woosh it was more like wooosssssssssss.....ht

anyway i have never had this problem. as soon as it starts i push teh clutch and it goes away, same thing when i let off the gas. sooo im thinking something fuel related.... any thoughts?

thanks

Andy

[38 Cigarette]

Originally Posted by saiyin car

ok the SVT took a crapo on me today so its in the shop. unfortunatly i had to bring teh VR4 out a week early thats ok but on my way to work i noticed that when i romped on it the car would almost start bucking like a bull. only at higher rpm's and only only in second and third gear, is this compressor surge or something much less involved like im running so pig rich im chocking it with too much fuel? i also noticed that the BOV was tweeting longer than usual. instead of a sharp fast woosh it was more like wooosssssssssss.....ht

anyway i have never had this problem. as soon as it starts i push teh clutch and it goes away, same thing when i let off the gas. sooo im thinking something fuel related.... any thoughts?

thanks

Andy

Andy,

A couple of things:

1) how old is the gas in your tank, and did you stabilize it when you parked the car last fall ? This probably has NOTHING to do with your issue, but I dont recommend running hard on stale gas even if its been stabilized.

2) it may be the capacitors in the ECM/ECU. There is a current thread by WEEDMAN where this same problem came up, and replacing the capacitors fixed this same/similar problem

3) how old are your plug wires ? If you have a bad one thats cracked, this will happen too. They also mention this in the above mentioned thread

[RoVR4]

Hey guys...Back in IL just wanted to give ya'll an update

Thursday night a few friends on mine came over...we installed the 680's injectors and a bunch of other stuff (plenum spacer, wires, plugs, etc.)

well anyways...we were tuning with the Innovative Wideband o2 device........awesome product and makes tuning sooo much easier and accurate.

well anyways....im throwing out a warning....if youre on the factory ecu and plan on running larger injectors (larger than 550's) fair warning....log and watch your timing...i was getting extreme timing advance that was causing me to knock....the duty cycle for those injectors was way to low and the ecu was going nuts advancing timing like crazy...........we gave up and threw the 550's back in..idle rock steady and worked damn great with tuning

at 15psi the injectors were at mid to high 70's IDC and timign was a rocksteady 23 degrees of advance (base timing was 7 degrees advance) and peak knock count was 4 which is extremely minimal and safe

she never ran stronger or faster...absolutely amazing

we didnt finish the tuning until 430am friday morning.

anyways..my spring break started friday and i took the pig home

driving back 30 miles form dekalb (with a nearly dead cellphone battery and completing nearly 300 miles of driving with a cranky puppy in the car)

i was passing a truck and decided to punch it...downshifted from 6th to 4th and hit the gas...60% throttle......boost rocked instantly to 15psi and held steady then it happened..............POP.....sputter sputter...lights dim..car wanted to die but didnt. I slow down and hit the gas again to move out of traffic...the car can barely makes 5psi of boost and making a whirring sound under the hood.

luckily the dixon toll plaza was only a mile or two away...i limped there and slowed down..the car died twice when iwas going 50-60 or so........clutched in...started the car back up...paid the toll...immediately pulled over....i knew what my problem was the moment i popped the hood

Late the night before....when we swapped the injectors back in....the rear IC hard pipe coming off the compressor outlet of the rear turbo was put back when the job was done...however..the bolt that firmly holds it down was only finger tight.

fast forward back to dixon.......the bolt had backed itself loose after all those tuning runs and finally came off and the o-ring couldnt take it anymore....pipe had blown out of the turbo and the turbo's oversped and outran its oil supply and cooked the bearing

thats right..my rear turbos are dead because i was up at nearly 5am and didnt tighten down a bolt.

this was human error and by no means a problem with DR turbos. a turbo will fry itself in seconds if the outlet end of the compressor side is uncapped.

so..........i wedged it back and limped home with a dead turbo........

my car is all apart in the garage and im waiting for parts.........the car was absolutely perfect....for less than 24 hours......and it all came crashing down due to a 2 cent bolt that wasnt tight.

i'm taking both turbos out and sending them back to DR to get another set.....sigh....dammit

so moral of the story....double and triple check all bolts after working on your car

hopefully the turbos will be in stock and my car will back on the road by friday or saturday.

oh on a side note..for the 94-95 guys...my datalogger worked 100%........no freezing or other such problems....if your running into problems try keeping the number of parameters your logging down to 3-4 parameters at a time to keep your sample rates high.


so....thats my story.......anyone else have an eventful weekend besides me

[vr4ludak]

Originally Posted by RoVR4

Hey guys...Back in IL just wanted to give ya'll an update

Thursday night a few friends on mine came over...we installed the 680's injectors and a bunch of other stuff (plenum spacer, wires, plugs, etc.)

well anyways...we were tuning with the Innovative Wideband o2 device........awesome product and makes tuning sooo much easier and accurate.

well anyways....im throwing out a warning....if youre on the factory ecu and plan on running larger injectors (larger than 550's) fair warning....log and watch your timing...i was getting extreme timing advance that was causing me to knock....the duty cycle for those injectors was way to low and the ecu was going nuts advancing timing like crazy...........we gave up and threw the 550's back in..idle rock steady and worked damn great with tuning

at 15psi the injectors were at mid to high 70's IDC and timign was a rocksteady 23 degrees of advance (base timing was 7 degrees advance) and peak knock count was 4 which is extremely minimal and safe

she never ran stronger or faster...absolutely amazing

we didnt finish the tuning until 430am friday morning.

anyways..my spring break started friday and i took the pig home

driving back 30 miles form dekalb (with a nearly dead cellphone battery and completing nearly 300 miles of driving with a cranky puppy in the car)

i was passing a truck and decided to punch it...downshifted from 6th to 4th and hit the gas...60% throttle......boost rocked instantly to 15psi and held steady then it happened..............POP.....sputter sputter...lights dim..car wanted to die but didnt. I slow down and hit the gas again to move out of traffic...the car can barely makes 5psi of boost and making a whirring sound under the hood.

luckily the dixon toll plaza was only a mile or two away...i limped there and slowed down..the car died twice when iwas going 50-60 or so........clutched in...started the car back up...paid the toll...immediately pulled over....i knew what my problem was the moment i popped the hood

Late the night before....when we swapped the injectors back in....the rear IC hard pipe coming off the compressor outlet of the rear turbo was put back when the job was done...however..the bolt that firmly holds it down was only finger tight.

fast forward back to dixon.......the bolt had backed itself loose after all those tuning runs and finally came off and the o-ring couldnt take it anymore....pipe had blown out of the turbo and the turbo's oversped and outran its oil supply and cooked the bearing

thats right..my rear turbos are dead because i was up at nearly 5am and didnt tighten down a bolt.

this was human error and by no means a problem with DR turbos. a turbo will fry itself in seconds if the outlet end of the compressor side is uncapped.

so..........i wedged it back and limped home with a dead turbo........

my car is all apart in the garage and im waiting for parts.........the car was absolutely perfect....for less than 24 hours......and it all came crashing down due to a 2 cent bolt that wasnt tight.

i'm taking both turbos out and sending them back to DR to get another set.....sigh....dammit

so moral of the story....double and triple check all bolts after working on your car

hopefully the turbos will be in stock and my car will back on the road by friday or saturday.

oh on a side note..for the 94-95 guys...my datalogger worked 100%........no freezing or other such problems....if your running into problems try keeping the number of parameters your logging down to 3-4 parameters at a time to keep your sample rates high.


so....thats my story.......anyone else have an eventful weekend besides me

Sorry to here that Ro. I almost started to cry when I read this.

At what psi did you go up to when you were tuning with your 680's? I got a peak of 8 when I was tunning my in at 15 psi. Thats of the logger though cause I still don't know how to get my log into the comp to look at all the stuff.

I hope you get her fix soon man.

[iceman_ii]

Ro,

First let me say I feel your pain... those of you that are in the circle of trust know just how much I feel Ro's pain.

Second, as a lawyer in training, you know that just because two things happen at close to the same time, does not imply a causal relationship. When your pipe blew, your power went to damn near nill, so your engine couldn't have oversped your turbos for more than a split second.... I heard about Eric Cameron blowing off an intercooler pipe, and I was following Greg when he blew off his BOV, in both cases, they both dumped boost to atmo, but in neither case did their turbos blow.

I would venture to agree that blowing off the pipe may have been the straw that broke the camels (turbos) back, but I hardly agree that it was the proximate cause of the failure.

Matt's a great guy, and he stands behind his products, but you have to ask yourself how many times you are willing to pay install costs till you get a set of turbos that last.

my .02

[RoVR4]

Originally Posted by vr4ludak

Sorry to here that Ro. I almost started to cry when I read this.

At what psi did you go up to when you were tuning with your 680's? I got a peak of 8 when I was tunning my in at 15 psi. Thats of the logger though cause I still don't know how to get my log into the comp to look at all the stuff.

I hope you get her fix soon man.

Nik when tuning with the 680's we coudlnt get it to idle worth a damn...and it was peggint he wideband at 9:1 to sometimes even richer

we had it at 6psi and we would still get knock counts of 24 peak

timing advance was well into the 40's

other people on the board has suffered from the same timing issues with larger injectors like that...which is odd
or perhaps its luck with the PTE injectors cause i havent seen people having huge issues with Denso 660's and 720's
which is odd but the're different type of injectors compare to the PTE


but anyways...with the 550's all my low settings (cruise and idle) throught the power band is around 14:1- 14.7:1 which was getting me 26-27 mpg on my drive back before shit hit the fan.

the WOT A/f was 12:1 or so which gives ya some safety leeway...like i said..the car was a fucking monster before the damn turbo fried...damnit

when i get it all send and done im gonna run with the 550's and get a FPR (and install my boost-a-pump) and bump the injectors to 600cc and that'll give me more than enough leeway

Hell Trevor made over 480 awhp on 550cc injectors with alky and 100octane

he was on that massive TDo5 setup of his to......and he just got 680's or 660's and he's pumping the injectors down to 610-620cc with his FPR

i'm gonna stick with the RC 550's and try to find a buyer for my 680's

now if i can only get those turbos here.....

[RoVR4]

Originally Posted by iceman_ii

Ro,

First let me say I feel your pain... those of you that are in the circle of trust know just how much I feel Ro's pain.

Second, as a lawyer in training, you know that just because two things happen at close to the same time, does not imply a causal relationship. When your pipe blew, your power went to damn near nill, so your engine couldn't have oversped your turbos for more than a split second.... I heard about Eric Cameron blowing off an intercooler pipe, and I was following Greg when he blew off his BOV, in both cases, they both dumped boost to atmo, but in neither case did their turbos blow.

I would venture to agree that blowing off the pipe may have been the straw that broke the camels (turbos) back, but I hardly agree that it was the proximate cause of the failure.

Matt's a great guy, and he stands behind his products, but you have to ask yourself how many times you are willing to pay install costs till you get a set of turbos that last.

my .02

Scott the pipe blew off directly off the turbo compressor outlet not down track

the car hit 5 psi 2-3 times after the pipe was off (accellerating to get away as the car slowed down and i was trying to get out of the way of traffic)

and unlike the others...i unfortuantly had to drive 30 more miles to get the car to a safe place....as it was 10pm and i had a dead cellphone so no stoping out in the middle of I88 for me)



also...res ipsa loquitur the facts speak for themselves.......any turbo ran without backpressure and boosting to atomosphere will fry a bearing......a pipe blew off...turbo spun freely and unregulated for several seconds.....
under the logic of res ipsa loquitur it can be very very very likely that the popping of the pipe is the proximate cause of the turbo failure

on a sidenot
i'm not paying anything for the install as im doing it myself the rear turbo is off today and the front should be off also today...new turbos should be in the mail and here hopefully by weds if they're notbackordered

[Damon]

FOOOKA ME!!!

Sorry to hear that all hell broke loose man! Andy mentioned something about you popping an IC pipe but sheesh... had no idea. How was she for those few moments of tuned bliss though??? At least you know exactly what to do to get her back to that point... she was tuned once, she can be tuned again. Turbo install party anyone?

[TsunamiStealth]

That really fuckin sucks dude. All I know that is man your car was built up and ready to roar and now it's back to workin on it. Damn sucks. I feel your pain. I've had the Stealth for two years, and I've only driven it for a total of 11 months. And this is problems from a car that was still almost dead stock. Except for my recent boost controller