I would say the stag4 port made the tune explosive .LOT-O-AIR coming in!

 

I was racing a 76 Z28 fully restored sounded nice it was 47deg outside we left the light drove side by side for 50' then I rolled into it at about top of 2nd gear I felt it start to vibrate like I had dropped a couple of cyls and let off immediatley. Trucks still runs great I thought I may have burnt a plug but it runs fine lesson learned I wish I would have been watching the WBC. I have ran it a couple of time full boost WOT and no problems I think if I would have held it to the floor it would have gone BOOM. I may have had spark blowout I still have a deluted 109oct with 93 from going to the trach a few weeks ago.
jeff

 

That is exactly what happened...This miss and a little vibration, it happened very fast. I felt it and my brain was saying get out of it but my foot wasnt quick enough. After the bang, parts were flying out from under my truck on the right side. I thought the darn tire had blown and the rubber was coming off. I glanced in the mirror and it looked like a mosquito fogger. Then I had to call the wife.. I said, honey I think my truck tore up. I dont really know whats wrong with it but its being brought home on a roll-back.... In a couple weeks I'll break the news.

 

I didn't do it , it aint my kid

 

OH YEAH, I know who your talking about. It wasnt I-65 though, it was corridor-x on the way to the base one morning about 700. He would only run me from like an 80 mph role though so naturally he handed my *** to me. I never could get him to go from 1st gear...he's not stupid, he knows where our trucks are the strongest but he's a puss cause he will only run you when he's got the advantage. I raced him the day before I got my new tune and goodies put on, I'd like to run into him again now. Where did you find him way up there? Anyway, if yuo'd like that tuners number give me a call tomorrow at the base and I'll give you the info on him. He did a great job with mine. I hate that you blew it up man, that sucks. funny that he thought you were me though, I think the only difference in our trucks probably is the company sticker...and I have chrome wheels.

Oh, and Jarmstro, thats 2 flight medics on here that street race since your keeping tally.

 

So sorry Medic

And believe me I know the feeling of NOT wanting to lift when you KNOW something is terribly wrong :o
At JDM Day I knew I was in trouble, but I stayed in it waaaaaaaay too long,
cylinder after cylinder dropped out and when I finally did lift it immediately stalled and there I was doing @ 100MPH with no brakes and steering
I was amazed it started back up on the return lane, especially after seeing 7 out of 8 plugs were hollow and had NOTHING left of them (but hey I still ran an 11) hehehehehe

You CANT put the blame anywhere except IT WAS IT'S TIME
Ya maybe a safer tune, maybe less boost, maybe maybe maybe...
You know what they say, "if" my Aunt had ***** she'd be my Uncle
Bottom line anytime you hold a modded Lightning WOT on the parkway, especially when it's not from 1st gear through the rest, you're putting your motor out there in a very dangerous position. Some get away with it some dont, and if your not running a tune made for prolonged WOT it's DEF asking for trouble, even if you dont realize it. If you burnt a plug recently and dont know why, there were many possibilities to check out before you went out there and did it again. Live and learn but dont blame yourself, it's happen to too many and it may have simply been your time.......

I'm very sorry and I wish you a speedy recovery

 

I'm sorry, but I hear things like this and I'm glad that all I have is a CAI and a 91/no pulley Predator tune. My truck is fast enough for me the way it is and I don't have to worry about this happening.
Good Luck with the rebuild.

 

i can only imagine.

On a good note, I don't know what your planning on doing but I think Hostile is selling a motor with low miles out of his 03 in the classifieds. I think I saw it here or NLOC. Hit him up.

Good luck.

 

I know a few guys that set their shift points at 4800 just to get the tranny to actually shift before 5500. Our trannies seem to be slow once you start adding power.

Good luck on the new build bro!!

 

Well I feel real fortunate then mine is still running fine. I hate it that I got a truck and can't stomp it and have no worries. I find myself rarely going WOT just because of the fear of BOOM and I usually keep a close eye on my WBC and cool weather changes the a/f drastically. My tune is set at 15deg with 11.6-11.8 a/f when it is cold(50-60)it stays around 11.9 or so where 60+ deg days 11.6-11.7 no wonder these things go BOOM during the cold weather they are leaning out.
jeff

 

Ok, another IF. What is the difference if one shifted it down manuely or pushed the overdrive off, then eased into it to the floor while running at whatever speed (respectfully) then shifted it at redline. Would it still blow the engine as if you just hammered it from a punch at whatever speed (repsectfully) like everyone says it will more often than starting from a stop or in first gear? Please explain what the engine goes through in either instance, what's the difference?

 

I would like to know also. If you kick it and shortly there after it explodes, then I can see where the problem is. I hammered it and it survived; changed gears ok (I think) and was pulling hard. Heck I was out running a heavily modded LS1 on his home turf (kicking 60-110). My fear was always during the kick down...not 50-60 miles an hour after the kick. I really think the stage 4 port and new tune with 45 degrees temp was just too much. The fast speed was allowing the SC to get all the cool air it wanted and more than it needed

I plan on going with a built short block, port the stock heads, big mass air and fuel pumps......oh, and a wideband. Hope to have it running by the middle of June.

Thanks for the support guys...This is better than therapy and a heck of allot cheaper.

 

Hey bud thanks for the look out.. i saw this and was like man i feel for the guy ive been there too so i know what its like.. 1flightmedic i sent you an email i also have the engine posted for sale on here as well as NLOC,and LR.. who ever does get my setup will be happy either way.. oh by the way its a complete engine from pan to intake!!! email me at Evil03SVT@aol.com.. goodluck to you..

 

Your tuner should be able to help with that. There is a fuel modifier for inlet air temp. It should be set up so that you see richer a/f when it's cold out. There's also a spark modifier that's based on inlet temp. This should be set to pull (actually add less) spark as temps go down. With these changes there's no need for a warm tune and a cold tune unless you want a higher risk, higher power cold tune.

 

I'm real sorry to hear that you blew your engine. That just sucks!

After you get your built engine installed, tuned and running strong, you need hunt that Z-28 down and put the smack down on his a$$.

Good luck and I mean with the wife!