WannaGoFast break things--bad weekend racing but still fun...

[Bonjo2]

This is the only video I have of a run that I could get 4th and 5th gear. I ran hard to 1/4 but then had nothing in 4th and 5th. The previous runs it would jump out of fourth, and not engage 5th. The next run I grenaded 4th, then over-rev'd motor to 8120 RPM at 135 (dig dash max display).

 

I tested days prior to 165mph and had no issues shifting to 5th, but the day of the race the car had different issues....

 

Weekend started bad, tons of rain and fog, and then ignition key popped out while trailering to event. Hot wired car to make runs, then failure after failure... Ran 120 when everyone drying the track (including local police and fire crews) but told to keep to highway speeds. Best of the day on dig dash showed 134 at 1/4 mile, then coast to traps at 67-134. The run in video I shorted 4th and got 5th, but no RPMS and car couldn't push out of it's way... Nobody touched me to 1/4, even the 900BPH crowd, and the Stalker got all sorts of attention for accelerating so quick to 1/4, but fell flat on the 1/2. Last year I had similar issues and held 4th gear to 142mph at 7200 rpm.

 

When I blew transmission, my electric power steering fried as I coasted in. This was bad in that I blew 4th gear at 1/4 mile mark and had oil pressure lights, smoke etc... and had to wait until the 1/2 mile point to release my seatbelts to reach the kill switch. I thought the tranny would take out my right leg given the vibration and noise. I made my wife push me to trailer a 1/4 mile--Funny.

 

I'll find out more in the coming weeks as to the damage. Hopefully motor survived. Rear axle flex broke seal for dif housing, oil on alternator and right side header.

 

Bottom line is the S-10 rear axle, and stock T-56 isn't up to the power my car is putting down. If shifts went well I should have been over 150, maybe touch 160.

 

Now to prep for next year. I need a solid transmission that will handle the 500+ rear wheel torque and to replace panard bar to make room for a reinforced axle, or drop big coin for a 8.5, 8.8, or 9" rear. I also need new brake mounts as my lower hole on the right side broke. Damn..... I guess the sticky 315's are as bit much..

 

Now thinking of a 175-200Mph 7 plan, though might need to cash out my failing IRA to make possible now that I am a stay at home dad.. Grrrrr...

 

[yellowss7]

 

 

 

When I blew transmission, my electric power steering fried as I coasted in.

 

/QUOTE]

 

Bonjo, I think I found your problem. What the heck is a power steering unit doing on a 7?????

 

Next thing you are going to tell us is that the air conditioning is broken too. :leaving: These things aren't suppose to go straight. Look what happened to XCAR guy's Storker when it went straight. Even with all those wings on it, it still couldn't fly. Heck, even Suave, could fly better.

 

Sorry for the broken parts though, I feel your pain.

 

Tom

[Kitcat]

I think the most impressive stat in your entire post is that your wife pushed you a 1/4 mile in your car:).

The other quarter mile speed of 134 mph isnt bad tho!

[toedrag]

Sorry to hear of your troubles, but at least you had some fun.

 

Best of luck on the new speed goals. Can the T-56 Magnum work in your application (isn't it good to 700 lb-ft?), or would you go for a rebuild?

 

EDIT: What are you thinking about for aero?

Edited May 3, 2016 by toedrag

[xcarguy]

. . . . These things aren't suppose to go straight. Look what happened to XCAR guy's Storker when it . . . bla, bla, bla. Even with all those wings on it, it still couldn't . . . bla, bla, bla. Heck, even Suave, could . . . bla, bla, bla, yatta, yatta, yatta.

 

Sorry for the broken parts though, I feel your pain.

 

Tom

 

. . . . . really? :toetap05: Suave sneaked in here and read the post. Now his feelings are hurt and he's all worked up. How am I supposed to deal with that? I mean, look what he did to your post before I grabbed the keyboard from beneath his tiny little orange beak.

Edited May 3, 2016 by xcarguy

[Bonjo2]

You guys are so funny. It's a little electric power steering unit, that's needed on a porker. T56 magnum is a totally different animal, but with a yoke, simple bolt in. To rebuild would cost over 3k to make t56 able to shift at 6-7k rpm. It just sucks that both are so darn heavy. The latest magnums are world class--about time.

 

I will be swapping in 3:08 gears and getting the short ratio transmission, so should be good on track day and going straight.

 

I think motor ok. A cap on intake blew off, dipstick shot out, and line to TB came off. Plugged dipstick and now oil pressure back to 40 idle, from 21 post incident.

 

Aero. Covering the engine tray and under the rear axle about it for now. I tried a couple other things, spoiler, diffuser without noticeable effect. Removing rear boot cover, venting hood, removing front fenders and headlights, and mounting front license plate all help reduce lift. The roll cage, rear wings, and passenger compartment are impossible to negate without a body.

[Bonjo2]

Yeah, the video 1/4 looks to be about 125 due low rpm shift to 4th. Maybe a 100 shot of nitrous in 4th and then a 200 shot in 5th would help.

 

Doing the math I think 155-160 about all this car will do. 175-180 would need almost double the bph but I think grip limiting. 200 in such a short sprint would need major drag reduction