Eric and I swaped in the UR6 plugs then took it for a test ride. I did half a pass at DonJulio raceway. 1st gear ran great up to 5000rpm hit 2nd and ran it up to 5000 hit 3rd and then let off. I heard a little back fire on decel, gave it a little gas and it was missing. I got about 4 house away from mine and the RPM's drop real low and it just died. It will crank but then it would just stop. sounds like I dumped a rod. I was just talking about selling it too, been thinking about getting out of thirdgens.
Hope it doesn't rain any time soon, because I'll be on 2 wheels for a while
Hope it doesn't rain any time soon, because I'll be on 2 wheels for a while

Supreme Member
So it's not cranking anymore?
I call dibs on door panels, booster pump, and anything else I can think of.
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also, Caught a glimpse at your sig, quick to update are we? lol
I call dibs on door panels, booster pump, and anything else I can think of.
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also, Caught a glimpse at your sig, quick to update are we? lol
Quote:
DonJulio raceway
hahaDonJulio raceway
Well if it is in fact dead, it will be a bummer to lose a long-time 3rd gen owner/member.
You sure haven't had much luck getting one on the road for very long.
P.S. - Were you really running 10psi? I'm hoping to get closer to that, if not a bit more.
I'll have to get back to you on the extra pulley/belt you have before you sell the whole thing!
Supreme Member
I see Eric's little wee-oh-five dance went as planned
Serious note : 350 build time, not give up time
Serious note : 350 build time, not give up time

I had a 12psi pulley on, but I guess procharger rates them at 6000rpm. I would get 10psi a little over 4000rpm at full throttle.
TraviZ Im not gonna part the car out, Im 85% sure Im gonna stick another motor in it. I still wonna make atleast 1 good pass down the track
. I am thinking about selling most of the swap stuff I have for the Iroc.
TraviZ Im not gonna part the car out, Im 85% sure Im gonna stick another motor in it. I still wonna make atleast 1 good pass down the track
. I am thinking about selling most of the swap stuff I have for the Iroc.Member
why won't you just get the iroc fix
camaros look better,put a 355 or a 383 stroker in it with that procharger our yours and you'll be happy
camaros look better,put a 355 or a 383 stroker in it with that procharger our yours and you'll be happySenior Member
Quote:
Don't you know that cars have feelings? She was ticked off at you and decided you must be punished. This is the the equivalent of talking smack about your girlfriend, so she takes your ATM card, empties your bank account and goes on a shopping spree. Originally Posted by kairles
been thinking about getting out of thirdgens. 
Member
don't leave the thirdgens they are some beautiful cars and imo look better than most of these new cars out there.I wouldn't mind owning a 5th gen tho man irs and factory real duals lol and a 69 look to it
Quote:
I know same thing happened with my Iroc. trans went then a month after I had it rebuilt the motor took a dump on me.Originally Posted by campin1983
Don't you know that cars have feelings? She was ticked off at you and decided you must be punished. This is the the equivalent of talking smack about your girlfriend, so she takes your ATM card, empties your bank account and goes on a shopping spree.
Supreme Member
You cant leave bro! Its time to take that motor out and rebuild dude! Never give up on these cars. If you treat it right they will do the same to you.
It took awhile for the LS1 to like me but it does now. LOL
It took awhile for the LS1 to like me but it does now. LOL

ya ran great and pulled hard till POP
changed the plugs for nothing
changed the plugs for nothing

Supreme Member
I'll let ya have mey motor for a grand. Ill even throw in the 700r4 for an extra 350 bucks. Remember thats the combo that took out Bennie & Del hahaha
Senior Member
Quote:
Why don't good motor deals like this ever come around in IL! Originally Posted by 3rdBird
I'll let ya have mey motor for a grand. Ill even throw in the 700r4 for an extra 350 bucks. Remember thats the combo that took out Bennie & Del hahaha 
Senior Member
Damn, that sucks. I'm glad to hear that it ran hard, so at least the supercharger is still in good shape. I agree that you needed some tuning on that thing. Did you retard the timing or anything else? The stock injectors like to lock up at higher pressures too. SVO's would have been a good upgrade.
I'd say replace/rebuild the short block, get some bigger injectors, retard the timing... and you'll be good to go for a while. I don't know what the specs are on the L98 in 3rdBird's car but I have my stock L98 that ran strong that I'd let go pretty cheap. Since you don't have to drive it I'd say pull the engine out and tear it down... I'd especially like to see what the pistons look like.
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I'd say replace/rebuild the short block, get some bigger injectors, retard the timing... and you'll be good to go for a while. I don't know what the specs are on the L98 in 3rdBird's car but I have my stock L98 that ran strong that I'd let go pretty cheap. Since you don't have to drive it I'd say pull the engine out and tear it down... I'd especially like to see what the pistons look like.
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Quote:
$1000 for an L98? I'll give you the same deal and I'll even pay shipping if you're really that excited about it...Originally Posted by campin1983
Why don't good motor deals like this ever come around in IL!
Senior Member
I guess I should look at the details first. I sort of assumed it was at least a somewhat modded 350 with low mileage, same with the tranny.
timing was at the stock 6*, and I had the ford 22lb pink top injectors.
Im doing some math right now to see what route I wanna go.
Im doing some math right now to see what route I wanna go.
Supreme Member
I think she's beggin' for a 350.
Or...
Get a PNP motor to send her on down the way so you can get that damn IROC fixed.
Either way you roll I'm down to give you some help bro
Or...
Get a PNP motor to send her on down the way so you can get that damn IROC fixed.
Either way you roll I'm down to give you some help bro

Supreme Member
this the same motor that you pulled spark plugs out of that showed tons of detonation?
Member
Quote:
Rubs it in...Originally Posted by JesasaurusRex
this the same motor that you pulled spark plugs out of that showed tons of detonation? it was bound to happen sooner or later, Im surprise it lasted as long as it did. I will mis the second gear powerslides on the freeway onramp by my house.

Supreme Member
im not rubbing anything in, i'm asking a question because i don't know. I'm assuming by that responce it's the same motor tho. May i ask what you did to fix that situation after you pulled those plugs?
Member
Quote:
i know what you mean but if you need any help on your car im down to help you specially with the iroc you need to get that bad boi runningOriginally Posted by kairles
I will mis the second gear powerslides on the freeway onramp by my house.
Quote:
all I did was change the plugs. never heard any knocking or pinging. even before the plug change, just felt kind of soft, and the whole WOT 4500rpm problemOriginally Posted by JesasaurusRex
im not rubbing anything in, i'm asking a question because i don't know. I'm assuming by that responce it's the same motor tho. May i ask what you did to fix that situation after you pulled those plugs? Supreme Member
If I buy another car it will be fairly new
Supreme Member
Yeah, I like having the 2 newer cars and the Formula to play with.
Supreme Member
Quote:
now the rub in part, just because you didn't hear it doesn't mean it was there. The spark plug is your only view into the combustion chamber and they don't lie. That motor was detonating, a shame nobody told you sooner.Originally Posted by kairles
all I did was change the plugs. never heard any knocking or pinging. even before the plug change, just felt kind of soft, and the whole WOT 4500rpm problem the plugs actually look like they had oil on them and like the guides odd part was it was only the drivers side
Senior Member
1TUF92Z
Senior Member
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- Join DateJun 2002
- LocationElk Grove, CA USA
- Posts:846
- iTrader Positive Feedback0
- iTrader Feedback Score(0)
- Car92Z28,91Z28,91Z281LE,95ZR-1,08Z06
- Engine406, 350, 305, 350, 427
- Transmissionauto, auto, 5-speed, 6spd, 6 spd
- Axle/Gearsall stock
- Likes:0
- Liked:0 Times in 0 Posts
Quote:
Originally Posted by JesasaurusRex
now the rub in part, just because you didn't hear it doesn't mean it was there. The spark plug is your only view into the combustion chamber and they don't lie. That motor was detonating, a shame nobody told you sooner.
It detonated and that's why the engine broke. 10-12 psi on a stock 305/350 is a little much more than I would run it for. Even the stock Mustang 5.0 can't really take 10-12 lbs of boost and they came with forged pistons stock. And to rub it in, the 302s are pretty stout.....stock.Member
yup they are a lil faster but they are ugly @ss hell and can't handle corners for ****,2 weeks ago i seen one spin out trying to hit the corners to fast 

Supreme Member
And like most 3rdgens on the road, they are not maintained and do not perform anywhere close to stock.
Supreme Member
My old 88 Gt wasn't bad. The power was nice. Travis and Eric saw it.
Supreme Member
Ya it rocked.
:salute: Steves brother.
:salute: Steves brother.
Member
Quote:
yup you ain't lying about that this 5.0 iroc the other day was backfiring like crazy and was trying to race a c6 corvette all up on his tail Originally Posted by TraviZ
And like most 3rdgens on the road, they are not maintained and do not perform anywhere close to stock.
man i wish i would of recorded it,that corvette walk pass his @ss like he was standing still----------
Quote:
what you do with it??.I swear them stangs look like suited up escorts with a v8 in themOriginally Posted by 87tpi
My old 88 Gt wasn't bad. The power was nice. Travis and Eric saw it. Supreme Member
escort with a v8 would be sweet.
cosworth anyone?
cosworth anyone?
Supreme Member
Kid pulled out in front of me and I t-boned him. Got $6,000 out of it though so it was ok.
My formula was well maintained, never leaked a drop until I started boosting it. I shoot down a couple 5.Slows with the mighty LB9
if everything goes as planned it should be back in the road in about 2 months
if everything goes as planned it should be back in the road in about 2 months

Member
so what you going to do with the iroc
Glad to hear you didn't lose the 3rd gen love completely yet.
You should've tuned it immediately after adding the blower IMO.
You should've tuned it immediately after adding the blower IMO.
I don't think you can tune the 730 ecm for boost because it can't see boost. I would have to repin the ecm and run the $58 or $59 code. which doesn't sound hard, but they dont have a way to control egr and Im not sure it would pass smog with out egr.
Not necessarily just for boost, but you could still optimize the fuel/spark and reduce the knock.
I don't know a lot about the 730, but there are some great articles on the DIY board if you have a couple hours to read.
I know you're trying to datalog and that's a start.
CHAPTER 5: TUNING ARTICLES BROKEN DOWN BY ECM
730:
* P730: Part Throttle Fuel Tuning (no PE)
* P730: BPW and Target AFR, how it is used and calculated at WOT in PE Mode (P730: Target AFR and how it is used in PE Mode)
* Removing Smog pump, AIR: $8D 730 modifications (Removing Smog pump, AIR: $8D 730 modifications)
* How does the Stoichiometric constant affect part throttle BLMs in $8D?
* $8D Acceleration Enrichment Tuning (little some thing i put together on $8d ae tunning)
* P730 - Octane Retard Routine and how to control it better
* MAT recalibration tables
* MAT recalibration tables 2 (MAT question)
* CCP and how it affects Highway Mode (CCP and Highway mode)
* BLM Cell stuck on 4 (Swapped to 730, BLM Cell stuck on 4)
* Project Super AUJP
* MAT PW Compensation and $8D
* Idle RPM Limiter 730/AUJP
* o2 Constants
* Cold Start
* $8D Throttle Follower, IAC (Throttle Follower $8D)
* Launch Mode! (Launch Mode!)
* Baro/Da Calculations
* WOT % Change to Air/Fuel Ratio vs. RPM (WOT%Change to fuel/air ratio vs rpm question?)
* Tuning the Timing
* How to fix some of those common idle issues (big cam, surging, stalls, etc.)
https://www.thirdgen.org/forums/diy-...uide-book.html
I don't know a lot about the 730, but there are some great articles on the DIY board if you have a couple hours to read.
I know you're trying to datalog and that's a start.
CHAPTER 5: TUNING ARTICLES BROKEN DOWN BY ECM
730:
* P730: Part Throttle Fuel Tuning (no PE)
* P730: BPW and Target AFR, how it is used and calculated at WOT in PE Mode (P730: Target AFR and how it is used in PE Mode)
* Removing Smog pump, AIR: $8D 730 modifications (Removing Smog pump, AIR: $8D 730 modifications)
* How does the Stoichiometric constant affect part throttle BLMs in $8D?
* $8D Acceleration Enrichment Tuning (little some thing i put together on $8d ae tunning)
* P730 - Octane Retard Routine and how to control it better
* MAT recalibration tables
* MAT recalibration tables 2 (MAT question)
* CCP and how it affects Highway Mode (CCP and Highway mode)
* BLM Cell stuck on 4 (Swapped to 730, BLM Cell stuck on 4)
* Project Super AUJP
* MAT PW Compensation and $8D
* Idle RPM Limiter 730/AUJP
* o2 Constants
* Cold Start
* $8D Throttle Follower, IAC (Throttle Follower $8D)
* Launch Mode! (Launch Mode!)
* Baro/Da Calculations
* WOT % Change to Air/Fuel Ratio vs. RPM (WOT%Change to fuel/air ratio vs rpm question?)
* Tuning the Timing
* How to fix some of those common idle issues (big cam, surging, stalls, etc.)
https://www.thirdgen.org/forums/diy-...uide-book.html
Supreme Member
ahem, megasquirt!!!
Senior Member
Quote:
The AIR and EGR will not function, true. But there would be no check engine light, and if you leave the valve in place when they push on the diaphragm to check its operation, the engine will stumble like it is supposed to since it will still subject the intake to exhaust gases.Originally Posted by kairles
I don't think you can tune the 730 ecm for boost because it can't see boost. I would have to repin the ecm and run the $58 or $59 code. which doesn't sound hard, but they dont have a way to control egr and Im not sure it would pass smog with out egr.

