403 LS2 FD - LS7 Build for 2020!

[MPbdy]

Tried to make a couple passes at Irwindale tonight.  If I want some new times I'm going to have to head to Fontana.  Between the vette and the FD I'm really damn tired of Irwindale lol.   

First pass the car was still hot.  Just wanted to take it easy and see what kind of mph I was working with.  Ran a lot slower than I thought it would, but I think it didn't run that great.  Didn't data log it unfortunately.

Second pass...went for the hail mary.  Wound up just working on getting closer to needing that 8.8.  That's basically the same launch I did to pull a 1.78 at Fontana, but tonight it went straight into gnarly hop.  Stupid me kept thinking it was going to drive through it.  Whatever.  Didn't break it lol.

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[MPbdy]

If someone has a time machine can you go back to 2010 and tell me to port the heads?

Thanks.

[GTR]

What happened to your smog legal setup?

[largeorangefont]

What happened to your smog legal setup?

He came to his senses.

[sunshine]

if i knew you were going to irwindale i would have stopped by! i haven't been there in a while, its lame that its 1/8 mile to me, and going fast in a straight line is only fun for so long.

[MPbdy]

Sunshine I'll let you know next time. I don't go often but a friend of mine was nagging me to go and I was already in city of industry for work.

I wasn't going to get through a ref in modern times with my setup. Maybe a few years ago I could have. Car wasn't fast enough.

I rode in a c6z last night that was stock. I'm definitely faster than he is so that's cool.

[Jordan Innovations]

I rode in a c6z last night that was stock. I'm definitely faster than he is so that's cool.

I went to Irwindale when my car was full-weight, stock LS6-powered with 285 street tires (Hankook v12 Evo's)... ran against a brand new C6Z 3 times in a row and he only beat me once, by .002 lol.  He was SO MAD. 
Not surprised yours feels considerably faster.

[MPbdy]

Gear ratios and traction help a lot too.  He had worn out tires on baller wheels.  First was a slip and slide.  2nd I think he short shifted.  He kept lifting when 3rd started pulling and feeling good lol.

Stabbing the gas in 2nd in my car tends to get a bit of a reaction out of people haha.

[largeorangefont]

I don't think c6zs should give you much of a problem. I can typically reel them in on the straights on the road course if they are not head/cam cars.

[MPbdy]

I think I give them too much credit.  I put the c6z on a pedestal when it first came out in 06.  A 10 second capable high 120's car stock with a 7000rpm 427 kind of made my teenage brain explode.  I think in average real world conditions they're probably mid to high 11's at 125 at best.

It's always been the benchmark which I started building my car against.

I'm also starting to think my car came out really damn heavy lol.  I need to get it on some scales sometime.

[MPbdy]

Well I went out Tuesday night with the intention of working on my calibration and after one trip around the block and one run to redline I came back and the engine was missing pretty bad.

After three days of checking literally everything...I finally found it.



Soooooooo my cats are gutted now.  Cut open a window, knocked out the core and welded them back up. 

Went to fire the car after thrashing on it to get it finished and I had left my wideband O2 switch turned on and killed the battery over night.  Yayyyyyyy. 

I think I'm gonna blame my heinous wheel hop at Irwindale last week on shattering the core.  I'm really hoping it doesn't drone or sound stupid now with these big open chambers after the exhaust manifolds.  I really do not want to work on this shit again any time soon unless it's for something cool.  If the car stinks too much I may have to put high flows on it...but I've kind of read those just smell like rotten eggs instead of unburnt fuel.  Arguably worse.

Kind of bad timing to happen after the cam swap.  Now that there's no cats on it...really kind of makes sense to just throw some long tubes on it, but I spec'ed my cam for my restrictive smog legal exhaust...sooooo yeah.

[MPbdy]

http://youtu.be/9B4GHMenCcA

Back to normal.  Car sounds quite a bit nastier now.  Lots louder.  Some fun backfires on decel now too.  Nice to have my car back...was a little worried for a while.

[largeorangefont]

I love the crackle an popping on decel. My caddy does it, but the Rx7 does not...too lean on decel I suppose.

[digitalsolo]

I love the crackle an popping on decel.

Same here.   One of my favorite random little car "things".    In my case I blame it on growing up around fast bikes which have always done that.   It is just an endlessly entertaining sound.

[Exidous]

Pretty surprised your diff survived. I had a diff let go with less hop and slicker tires than that. One of the spiral gears split along the length of the shaft and wedged itself between my ring and pinion.