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When Mickey Thompsons can't hold the power at 50mph you know the car means business.
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Its all about having fun. :) |
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No pics of the swarm of people around it? Hahaha
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Had a good day at the track It was hot and humid as hell but got to get all my license runs in and the last two tried out the new shocks and tires. Launched at 13psi and got this pass. As you can hear in the video i hit the rev limiter lol but still got a decent run out of it. Also this was straight 93 no mix no meth. Ran great all day. 16psi 15* timing. Now that i'm legit i'll be trying to dial it in. Still plenty left on this set up might change gear and converter up a little but want to work with what i have for now. But the Converter was not happy with the new gear change LOL ;)
Trans temp was 220 at start of this pass OUCH :( I keep hearing (theres nothing you can do unless you go 4L80e) So i will decide on that over winter i guess. http://i39.photobucket.com/albums/e1...psb6585f0c.jpg http://i39.photobucket.com/albums/e1...ps78202fec.jpg |
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Just watch out when the weather changes. The car is down a ton of power right now that when the temp drops the 16psi and that timing will probably blow a head off on 93 octain.
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The weather and straight pump are reasons for my MPH drop? I figured it was because of the taller tire
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I think your still wrapped up on NA cars. Turbo's are totally different. The weather is illing you, nevermind the air quality at that track sucks.
You should come to NED this saturday and run the X275. Track will hook like a bastard and the sea level is a lot better. |
Makes sense. Guys down here with turbo cars are always messing with there tune ups cause of the humidity and heat. Then in the winter it's either cold one day then 75-80 the next.
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How do you like the drag radials? was this on friday? you should make an account on 1320go.com and keep track of all your DAs and such, makes it less of a guessing game
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SD tuning is not hard to get. Mine still runs on the tune from the winter.I turned up the boost more and didn't touch the tune at all.
There are a lot slower cars than yours running. Both races so far were won by the slower cars due to the high hp cars spinning. |
I'd also watch out on some info your getting. Cranking the timing up down low can take out a piston quickly on the street.
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This was Sat. it was hot and humid i think the DA was 3500 when i checked. Alright i will make an account there just sent all my paperwork in today for the license so i'll be able to go out and make some full passes everytime. |
You have to load the car on the footbrake before the transbrake. If you just roll up and hit the trans brake it will take forever to spool. Main reason why turbo cars have manual brakes.
I also think you do not have a 2-step.Thats needed and a reason why the 60' is so slow at 13psi. At 13psi it should go on the bumper. |
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So basically have the 2step build 8-10psi at a lower rpm will get me out of the hole better? Just trying to understand better. |
Your just burning the converter without a 2-step. A lot of lost torque on launch.
No way you should be hooking 10+ boost on launch unless it just isn't launching right. You should go this weekend, will learn a lot about turbo cars and launching ect. I know Curt with the 00 turbo Camaro is coming. |
Well I was all geared up to go even paid for a track rental tomorrow to dial it in better but just took it for a cruise didn't even really get on it and spun a rod bearing. :( didn't expect that at all but pretty bummed. How the hell that it happened on the street and not beating the hell out of it at the track is beyond me. 1500 miles street driving 21 passes most with more boost also. But its a really annoying part to go. I will habe the oil analyzed. I think instead of fixing this one ill just pick up another and swap my cam heads oil pump and timing chain over. Def a kick in the balls though. Ill have the motor swapped by next weekend.
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Damn, that sucks. Let me know if you need a hand with the swap.
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Its just crazy to have it happen randomly on the street. I got guys saying just put forged stuff in but if i had a built motor that doesnt mean it wont spin a bearing ;) Joe is coming over sat to help me get it out and tear it down. Come on by sat if your around we will be out in the garage |
Know the feeling. My first motor spun a rod bearing driving down the street. The damage was from all of the previous nitrous runs and drag racing. I am willing to bet you hammered most of the rod bearings while on boost and then one just had enough. Good luck on the speedy recovery!!!
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The bearing probably got beat up from knock. Running 93 at the track at 15lbs will take it's toll on bearings.
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Then after I got a supposed low mileage motor that went KABOOM after 10 miles. It shot 2 rods out the bottom of the pan. I was very pissed to say the least. |
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Luckily I was able to get it back up and going.
Get that thing fixed!!! I want more videos!!! |
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You learn tuning on the street. I use the dyno and experience.
An auto with high load always lives longer with less timing with pump gas. Your tune is almost the same as mine while I'm spraying methenol with the high octain benefit. Add methenol or run high octain and it helps keep bearings in the motor. Also make sure you setup the correct converter gap or it will push on the main bearings. |
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Thanks for the insight though Don I appreciate it. Good luck tomorrow ill be tearing down my motor all day. Lol |
Well got the motor out and just as expected found one nasty spun bearing. Actually stacked on top of each other. Couple others were a little beat. So tomorrow picking up another motor found it for $300. Haven't decided if I want to just throw it back in stock bearings and all (inspired by dudeman lol) but a very frustrating thing to fail. If I had some bent rods and was on the edge i would go forged but I really am not up for spending a ton on a motor right now so I will try this next stock bottom and hope for the best. But believe me this time around either ill add meth or always run race gas when I run 12+psi and 13+° timing. Here's a few pictures
http://i39.photobucket.com/albums/e1...ps3c0692b8.jpg http://i39.photobucket.com/albums/e1...psa8741c7d.jpg http://i39.photobucket.com/albums/e1...ps1314be34.jpg http://i39.photobucket.com/albums/e1...ps5fe06bd4.jpg http://i39.photobucket.com/albums/e1...psc54ccab3.jpg |
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It's hard to tell from that pic but the spun bearing shaved the crank down pretty good too, there's a nice lip between the journals for #5 and #6.
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Shavings in the pan:
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Could be just bearings but I've seen that a lot on nitrous motors. Lack of octain hammering the piston/rods.
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