Just curious about the tune that you had installed when your motor let go. Of couse no vender names please but I would like to know if you had a dyno tune or if you had the mail tune. I am a firm believer in a proper Dyno tune w/ multiple tunes for different weather conditions.

It seems many engines are vented during the NOV-APR time frame.

 

i blew my original engine with a mail order Predator tune in the month of January..

 

engines blow in the colder weather..........period.

You do a search on blown motors and almost three quarters of them have let go in the colder weather.

My old man blew his 00 in february. It was about 35-40 degrees out. only a 4lb lower on stock blower. It was ugly.

 

The first mod on any Lightning should be a Wideband, that would prevent so many blown motors - it is great peace of mind every time you jump on it to see what your A/F is doing

 

Today, Feb-23rd at 9AM; 45 degrees at about 100-110 WOT with a new mail order tune from a popular vendor and a new stage 4 steig port SC. Personally, I dont think it was the tune...I think 45 degrees was to cool for this set up on a stock block. IMO

 

Not all let go in the winter. Mine let go in June. Of course I was pushing it with 100 shot on a 6# lower. And yes it was ugly.

Rich

 

well, 100 shot and a 6lb lower, it would have let go if it was 150 out!!

I think we are discussing stock motors, and average mods, like 4-6lb pulleys and such.

Engines that are set up like a ticking time bomb could blow anytime, but engines that are set up "safe" (hate to use that term) have more failures in the colder weather.

 

Yes i do believe that the cold weather brings out plenty of blown motors. What many people are forgetting is those RETARDS that do their 60 mph kickdown to 100+. (sorry if i offeded anyone) but time in and time out the same old story" well a vette on the highway pulled up next to me and wanted to play" " i got on it about 60 mph and i heard a big boom a few seconds later." doing kickdowns is a big difference in load capacity compared to 0-whatever mph at the track. Yes you can blow at the track but i bet over 80% of people that blew their engines on this forum was by doing 60-70mph kickdowns.

 

I agree with that completely.

 

for someone whos uses their brain when driving these trucks.

 

I sprayed a 100 shot with mine on a 6lb lower and it ran perfect. Done it several times when it was high 30's out.

All in the tune. Jerry W is the man.

Oh, and Edward, the motor is under a higher load at the track on that sticky surface and/or with slicks compared to street use. The kickdowns don't hurt it so much as the predator that was plugged in before...lol

 

A ported eaton... Any other mods or pully changes?

I live in a cooler climate and will soon be going with a ported eaton on a stock block, so i am wondering how safe i would be?

 

To me, the brain defect is in having a tune that won't tolerate a 60 MPH kickdown.

 

With nitrous the dyno #s were well in the mid 500's for HP.

Rich

 

You guys gotta stop running Mail Order Tunes.

When I got my Mail-Order Predator tune from one of the biggest and well known tuners I was told it would be a flat 11.8 across the board.

Well I went to dyno it a couple weeks later and It was a straight line for sure but at 13.5 af ratio.

Was he willing to fix it? Sure. Was I about to let him? Hell no. What if I didnt get a dyno? I would be fuked.

Get a dyno tune, anyone with a dyno can tune it properly, just make sure the a/f is what you want it as well as the timing, its not some miracile that these mail order guys perform, and they are just canned tunes for the most part.