Understand - I figured all the drag racing SRT6's with their rev limiters adjusted to 6,200 RPM were shifting into fourth just prior to the finish.

I would guess that there is a time penalty during that shift - so if you could hold third just a tad longer (and perhaps 1st and 2nd) you could drop another .10 to .20.

Do that with minus DA weather on well prepped track, with sticky drag radials, minus your front grill, all non-essential items removed and you just might lay down an 11.XX run.

 

Anyone considered twn charging by adding a rear mount turbo plumped to something like a single Needs wings intake being used as a charge pipe? A uniiversal kit from STS is $1,995

 

is this in the tcu program brian? all srt-6 and slk32 have the same gear.. 3.07 yet im just hitting the redline almost shifting into 5th when i hit the traps. ill have to look but think my rev limiter is set to 6100 rpm, not sure. im well into 4th long before the end

 

Quote:

Originally Posted by kolevski

loungn14 where do you think the best place is to inject the meth? Do you agree that spraying into the supercharger will damage the coating on the rotors ?

Hey, here is what we did on Shardul's car down in Tx. This is definitely what I would recommend.

DIY Meth Kit Install on a E55 PICS Included

Quote:

Originally Posted by oledoc2u

I got to ride in Colin's car as well, and the torque was the difference....he has a true dual exhaust....but there is something about his car, whether tune, whatever, he can sustain 3rd gear thru the 1/4....if we all can hold in 3rd without timing being pulled, our mph will go up, and our trap will go down....we shall see what the meth kit, and the new LSD does for mine in the spring....and Jake, we still need to talk tune once the meth kit is installed....I like the track tune myself...Wayne did this with the roadster, and it has been good to me...need a US41 meet...in the spring...

You are correct sir! Its all about the torque now isn't it. Track tune is where its at if your an avid racer! We have done a few events where we tune people on the track. We were offering money if you didn't improve your times over previous tuners. We didn't end up giving out any money....


41 in the spring is already in the mix...

Quote:

Originally Posted by Guran

How much work is it to 11 seconds? - MBWorld.org Forums

Guran, how are you my friend! Good post, and great information. You really have mastered this platform! We are glad we could help and point customers to your car to see what it can really do!


we push the rev limiter when we tune and also have the ability to custom change it and put it wherever you want it. Some cars are lower, and others like Franc have it raised based on their driving/needs


Ding! That was one of the biggest things that bothered me with the C32, I would shift 20' from the line. Fix that and you easily have a .1

 

https://www.crossfireforum.org/forum...d-srt-6-a.html

 

Jake what's involved in a track tune? E.g will race fuel be needed etc.

 

Geez I post a general question to Doc and everyone wants to know WTF I have under my hood and oh it must be BS.

So to clear the air for everyone since I will be retiring this car to my wife (oh can she drives it down the track) next year when my GTM is inspected and on the road.
I'll spill the beans!

I'm a touring musician with a mechanical Engineering background so I have very little time to play.
I built my first 13 sec. car (1974 Camaro Type LT) when I was 15 and I've been building cars and motorcycles every since,
you could say it's in my families blood. I loved racing motorcycles ADBA AMA Prostar and in 1992 ran 7 sec 170mph passes on a 138" V-twin Buell.

I've built and raced Buick Grand Nationals, Toyota Supras, a twin turbo Saleen Ford Mustang, even a 1998 Lotus Esprit. oh yea I forgot my 2001 1.8t VW Beetle sitting pretty at 300hp with a GT3071r turbo. Unfortunately I no longer have the time to go to the track plus the track will not allow me to run the crossfire when they are open. When I do get the chance my neighbor (currently running low 10's with a Impala SS) and I plus some other major gear head friends rent the track and run the hell out of our cars, how I finally got numbers (for myself) and neighborly jabbing.

List of everything done to my car.
don't forget to look at my Kill list: Saleen mustang, LS1 Vet, G35,Trans Am, Viper, Kawasaki Ninja ZX-12R, 370 NISMO, 2009 ZR1.
plus many more. Does anyone want to call that BS as well?

ok on with the mods
NW CAI, DJ SC, cm-30,LET 185,blah blah blah.
Eurocharged 2.5" full dual Exhaust with racing Cats & Headers, Zex Wet Nitrous kit 75#,
Dyno Tune (Tony @ Eurocharged)
Two or three days on the Dyno (thanks Jake) and one week at Eurocharged. If you look and my build you can tell I'm a little crazy and everything done to my car was with a dyno run before and after then take everything off and try something new, repeat this process 10-12 hours a day for a week , so I know Eurocharged parts and tune make power.

Thinking about it I probably didn't pay Jake enough (sorry dude).
We started with a full tank of gas and almost ran out on the Dyno and Mat and I had to go fill it up so we could continue the tuning, we also went through two or three bottles of N20 and a set of spark plugs.

5k HIDs,Belt Wrap, Koni's, EBC Brake Pads, Brake lines, Phantom Grip, Phenolic Spacers, Magnacore 8.5mm wires.

Funny no one asked If the Phantom grip had anything to do with my Trap times. Spinning both wheels off the line @ 3000 rpms you really need to hang on. the torque is what carries the top end speed.

Now for the love:
OK now I'm going to let you know one of my secrets... ready.... read everything MD SRT6 and Waldig does and figure a way to implement it into your own car.

1) For me it was electronically clamping everything being sent to the computer via micro relays variable resistors and switches and sending the appropriate voltage to the ECU so the car does what I want when I want. Get rid of the anti-lock Waldig (switch). Waldig Thermostat idea and several other ideas he had. Load up the front springs (shims between coils so all the weight is distributed to the rear wheels. soften the rear Koni's and tighten the Front Koni's (90-10).
2) Fuel injectors cleaned, balanced and calibrated and matched up (interestingly enough my flow rates were 17% off between all the injectors) flowing 20% more plus a better pattern. cost about 150.00 each send out at least 12 so they can get the best match then sell the others off on ebay or add them to the intake ports (just after the supercharger) as a secondary set and control them with a mini piggy back for additional fuel (MD SRT6).
3) additional (second) fuel pump running 5-bar pressure @ WOT Waldig gave me the idea.
4) polished supercharger Y pipe (extrude honed) and Jet Hot coat.
5) Extrude honed and polished intake manifolds after (modifying) as done on Jakes car (again thanks Jake) flows like Needswings intake but stealth when opening hood followed with Jet Hot coating.
6) Take transmission to reputable import race shop and modify (shift kit) working on clamping for manual valve control at solenoid (no success yet)
7) while transmission is out rebuild torque converter and modify it so it acts like a 11" converter (2500-3000 rpm stall).

And last but not least tear into it and figure out what can be done besides just throwing money into parts. I'm buying a couple of rockers just to see if a machinist friend of mine can change the ratio (nothing done as of yet) but he thinks he can tig weld additional material and machine them and Cryo them so I can get a larger ratio (so much for needing cams?)

Jake is right, I'm one of those quiet guys (I read and lurk all over the forums for information) who street races for $$$$ anyone want to play? Nothing like roasting a mustang guy in the beetle! Priceless...
gotta go
back into the studio.

 

It's nice to see everyone back on track! It's been awhile since I've seen so much activity about squeezing out every ounce of power we can get.

Take care guys
Woo Wee this is fun stuff here!!!

 

[quote=tri_zombie] Nothing like roasting a mustang guy in the beetle! Priceless...
[quote]

Yeah, very true... Although mine was MUCH slower than yours (K04), I still took out a few GT's at San Antonio Raceway... The VW is much more of a surprise to people than the AMG.

I'm digging this thread and it has the gears turning in my head again.

Also, I'm really hoping to meet Guran and see that little monster SLK. I had planned on looking out once I get to Germany...

 

Bro don't take our disbelief as a insult take it as a compliment, your cars so far out of the ball park it makes it hard to believe, I seriously think thats a good thing.

I know many of you spent a fortune on R&D and making your cars as quick as they are, and I dont expect you guys to sit down and detail word for word how you made your cars superquick, that would be unfair because you've spent the time, effort and money why should we get a free pass? what I personally want is you guys to point us in the right direction e.g. work on the exhuast, work on fuel, etc etc.

My personal next step is to work on the exhaust system I think after reading through all your comments, I'm debating on whether to use the NeedsWings downpipes with cut outs or to remove the secondary cats and replace them with a X Pipe, Im leaning towards the NeedsWings but Im not sure if there are any gains when the cutouts are closed, there is definatly gains when they are open but the majority of my driving will be with them closed so I want to see some increase there.

I also want to design a true dual exhaust but I dont want drone so I need a muffler as quite and efficent as the standard AMG muffler, I know woody was working on cutting open the stock AMG muffler and trying to figure out how it can become a dual entry but I dont know if he figured it out.

He was also working on crossover manifolds and said the toruqe was great but I haven't heard much since then so I'm guessing he's still in the testing process?

As for the water/meth I'm still really undecided, the ONLY person I've heard that has had great success with it is Tim (mrphotoman) other then that no other success stories as such...but we'll see I guess.

I think after an exhaust to really keep me happy I'd want the LSD buggin is working on but being in Australia i cant see it happening for me, which is a shame because LSD is such a fantastic feature to have, oh well...my fiance' and I are planning to move to L.A for a year so maybe then

 

Hey tri_zombie, thanks for taking the time to post all the work you had done. I know I asked a lot of questions, I'm just really impressed with your car and wondered what it would take to duplicate, or at least come close to, your performance. Now I know it takes a bit more than just a big crank pulley, headers and exhaust (Those are mods I don't have).

As for the discussion about shifting into 4th just before the finish line, what would people suggest? If you want to hold 3rd gear, you would have to let off the throttle a bit to keep from shifting at redline. Good luck doing that and not let off too much, slowing you down.
With our gearing, a 26" tire and a rev limit of 6200, the fastest you will go in 3rd gear is just over 111 MPH. At 6300, it's 113 and 6400 (our engines supposed max RPM) it's 114.8. So I guess if you upped your rev limit to 6300 or 6400 you could keep from shifting into 4th.

But the problem I've found is I never hit my rev limit at the track. I believe my tune set it at 6200, but none of my datalogs show my hitting it. Hell, my car always short-shifts first gear. I'd be lucky if it even gets to 5800 in first gear. Second gear is a bit better and I've hit over 6100 when shifting from 3rd to 4th. I don't know why this is. I've read here on the forum that others do hit their rev limit when drag racing. Don't remember who posted it or whose tune they have.

And the last time I had my car re-tuned, I completely forgot to ask to double check my rev limit or ask for a possible explanation as to why my car short-shifts.

 

[quote=Buggin][quote=tri_zombie] Nothing like roasting a mustang guy in the beetle! Priceless...
I'm sure you know about the constant smile on your face when people just look at you in horror because that was not supposed to have happened! I should have gone with the k04 though with that instant power, I have LAG for days

 

[quote=Thumper SRT6]
I remember reading your posts about the fuel fix. Nice to see options there

Could you give the date you got those times? I'd like to lookup the DA. I race at Orlando, which is about 100' above sea level. My best time ever had a DA around -600' (in March), so we get pretty good air here in the winter/spring.
quote]

Thanks Thumper,
You can never ask enough questions, I'm always bugging everyone around here for answers. I was just put back a little with the quick distrust. Especially after I posted everything I did at Eurocharged because people wanted Dyno numbers in order to make decisions on what to do regarding Exhaust, headers and N20 since nobody was really putting up any proven numbers I did. I could have kept all the information to myself but that wouldn't be friendly like now would it. (lol)

No big deal.
BTW I forgot to answer your question about D/A
Date: March 3 2010, Where: No Problems Race Track
Cost $1000 two lanes 4 hours plus $400 VHT divided by 6 cars : )

MARCH 3RD @ 8:53AM

Track Elevation:
15 feet above sea level
Air Temperature:
44.1 degrees F
Barometric Pressure:
30.15 inches Hg
Relative Humidly:
58%
Density Altitude: -1170 feet
Relative Density: 103.47 %

MARCH 3RD @ 9:53AM

Track Elevation:
15 feet above sea level
Air Temperature:
46.0 degrees F
Barometric Pressure:
30.15 inches Hg
Relative Humidty:
51%

Density Altitude: -1045 feet
Relative Density: 103.09 %

We get a few days -2000 feet, but I never get those days
I put a post in the exhaust question that might help with deciding what to do to resolve DRONE. Interesting stuff people are doing.

Hope this helps.
Is the track in Orlando new, or is it the same old road course

[FONT='Calibri','sans-serif'][/FONT]

 

Wow, that was a great DA! And I thought my -600 was impressive!

As for the track in Orlando, it's been there for years. It is located on the same property as the oval track. I did a quick search and it opened in 1966.

I saw your post about eliminating drone. Great technical info. I love it!

Oh, and I hope you didn't take any of my posts as distrust. They certainly weren't meant that way. I was just shocked at the times you posted, which prompted all my questions. Not from disbelieving you, but wanting to know how I could duplicate!

 

What a 1000HP twin turbo LSX looks like stuffed into a GTM

 

Colin,

Glad to see you got your GTM build going. I will have to stop over in New Orleans when I end up moving back to Houston. Can't wait to see that bad boy do some bad bad things...or should I say amazing things.

 

I've been throwing around another idea, as most of you would know there's a member building a twin turbo set up on his SRT running his s/c...

Well I've been thinking what about getting a setup similar to Web 3.0's rotrex supercharger or a vortec, build a bracket move the coolant tank and have that forcing air into our standard s/c, I think 3-5psi on that would be more then adequate. Thoughts anyone?

 

The only thing I'm not sure of here is whether or not the standard supercharger would benefit or produce any gains from having air forced into it.

As we all know it's very beneficial to have cold air delivered hence our cold air intakes, but I wonder if It would benefit from having air delivered at 3-5psi...hrmmm anyone?

 

check out erics thread. at this time he is pushing 27 psi boost!! if he can get enough fuel to the motor 35 psi isnt far away

 

Damn, thats a proper setup if I've ever seen one.