Jump to content
SAU Community

Recommended Posts

Well I must say I'm very disappointed.

Firstly, I've learn't one thing. There's no point in having oodles of power, if you can't put it down to the ground until halfway up the track.

Secondly, rock hard coilovers plus stiff 18" tyre sidewalls do NOT make for good launches.

Thirdly, I need slicks to cut any decent times in my car :)

Okay, basically the best time I ran tonight was a 13.1 @ 112.9mph... That mph translates to a high 11 second pass, but predictable traction problems kept me from gaining any traction until mid track...

Also, the launch is a fiddly thing. DMS coilovers and 18" rims make for LOTS and LOTS of axle-tramping off the line, and no traction. If I reduce the launch rpm, I'll bog down and have to wait 2-3 seconds for the turbo to re-spool... There is no middle ground, plus with my new triple plate clutch, there is no such thing as "slipping it off the line"...

Basically my only option was to dial up 4500 rpm, let the clutch out and wheelspin all the way through first and halfway through second. This was with a burnout-warmed 265/35ZR18 Dunlop D01Js too...

So basically I'll need slicks, and perhaps get hold of some stock shocks/springs and then head back out there.

Oh yes. I nearly forgot. On my last pass, I dialed up 4500rpm and launched it, only to hear this massive CRAAAAAAAACK, and the car just stopped dead. Everything went silent for a while there. I have successfully broken my drivetrain. I predict that it's the rear differential, but I guess I'll find out tomorrow. :goddam:

Link to comment
https://www.sau.com.au/forums/topic/7619-results-of-ec-drags-181202/
Share on other sites

  • Replies 59
  • Created
  • Last Reply

Top Posters In This Topic

Originally posted by DON91E

Yeh man, definately not a good idea to lauch with 18s bro, you'll get no flex on your 35 profile tires :D

Try 55's on stock rims with semi slicks b4 u go to slicks just to keep the street creed :)

Yeah dude... That's why I even bothered to go out there with the 18s... So I could set a time on the tyres that I normally drive the car on...

No point in doing a 10 second pass on slicks with nitrous if I can only do a 13.1 with my normal street rubber and no NOS :)

Oh well... I guess my car sucks with normal road rubber... Someone give me ATESSA!!! ;)

saw all the skylines run last night

the problem is too much wheelspin

they just spin spin spin about 1/4 of the track

the best was a skyline which was spinning so much (like doing a burnout) and wouldnt shift up to 2nd

classic

if you have alot of power

maybe try launch in 2nd, or hit 1st but dont hold it long and straight upshift

it is amazing to see a skyline run like a 14sec pass

then a 20B rotary drag car come up with huge slicks and launch it so cleanly and record a 7sec pass

wow!!!

good luck getting your car fixed fast and cheap but with quality :)

slicks are the best u can get for the track

my mates r33 GTST can beat a friends WRX, the WRX ran a low 13, my friend couldnt get the power down so he got like a 14.5

the dragstrip is now too old and def needs this new place to be built, some fast times will come on the new strip, less sticky crappy oil tarmac and some smooth (roadlike) surfaces for a while

Good news people!!!

I managed to cleanly snap the right driveshaft, and my diff was unhurt, so I was lucky this time...

It's been replaced with another standard driveshaft, and next time I head out there, I'll be sporting 16" slicks or 15"s if we can manage to fit 15"s over the rear brakes... Anyone done this before?

I'll put photos of the driveshaft up soon :)

TOO MUCH POWAAAAAAAAH!!!

Originally posted by Merli

I managed to cleanly snap the right driveshaft, and my diff was unhurt, so I was lucky this time...

Damn it - I was going to suggest a mechanical diff as a replacement.

I'm glad it will be cheaper to fix that your first thought.

J

Originally posted by akira

Dont worry about Ur time dude.

Ur car is still faster then 99% of GTST's  here.

:)

i disagree with ur perception here.....just becos a car make big horsepower doesnt mean its fast. if at the lights or on track and u can't kick a less modified less horsepowered car then obviously all that horsepower, money and time are wasted.

Originally posted by VISHES

i disagree with ur perception here.....just becos a car make big horsepower doesnt mean its fast. if at the lights or on track and u can't kick a less modified less horsepowered car then obviously all that horsepower, money and time are wasted.

i disagree with your reaction of the perception.. :)

yes big horsepower doesnt necessarily mean its fast as you might not get it too the ground... but i certainly wouldnt equate it to money and time being wasted either.

have the fun comes when you cannot get it to the ground. :burnout:

:)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day  
    • While I was waiting for the new parts to come in for the charge pipe and radiator I decided to do some turbo modification. The drive pressure (exhaust backpressure) was a lot higher that I thought it should be. For 32lbs of boost drive was 55lbs. The turbine housing is a 1.10AR and my turbo builder has suggested to go to a 1.25AR. To test if a larger AR would do anything to reduce drive pressure AND not spend any money I decided to hog out the divider in my current housing. I removed it from the inlet and the whole way through the housing.  After reassembly and testing it doesn't look like this modification did anything for reducing drive pressure or requiring more fuel (making more power). Oh well, it was worth a shot. We'll get some data at the track if it makes it past the 60ft. I also machined a $7 shift knob off Amazon to fit my Stillway shifter since I didn't like the Stillway shift knob. Next on the list was the radiator replacement and fabrication of a new intercooler tube that had no silicon coupler. No pictures of this - I was short on time each night after work to get this done and didn't stop to take pictures.  Next was to get the clutch disks out and replaced. Previously when installing the dogbox I had ordered a set of the same sintered iron disks I had been running because I switched to the 26-spline input shaft. I thought it was odd that they didn't have any markings or brand name on them like all my old disks had but installed them anyway. At the track I could not get the clutch to lock up using my normal strategies. After two track nights I reached out to the clutch manufacturer and ask their thoughts. They said they had to switch the material out because they were having trouble getting the original material and that this new material would not take to being slipped very well.  So out with the first set of 26-spline disks and in with the correct material 26-spline disks. While I had the trans out I added an inspection/service hole. I've wanted one of these for a while. Now I can have a look at things and change the front cover shimming when needed (clutch wear). I hustled and got the clutch change done in a few hours on a Saturday. Hopped in the car and drove home. On the way home I did a 1-3 pull. When shifting from 2nd to 3rd the core plug in the back of the cylinder head popped out and dumped all the coolant. Thankfully I was only 30 seconds from home and coasted it there. Datalog showed nothing unusual and 2.5psi of coolant pressure. That plug has been in there since 1992 but I guess it worked its way out. Pulled the trans AGAIN and replaced the plug, JB welded it in, and made a brace. Also deleted the head drain I had added in during the bearing issue fiasco.  I am currently changing my boost control plumbing to make it cleaner. After that is done I'll make another attempt at getting past the 60.
    • Are you 100% sure this isn't tune related?
    • 140-150 across the board. At this point hoping the grounding harness fixes it. My grounds are all tied to the chassis and none to the battery. For SR and KA that’s never been a problem for me but had a few other guys here and Reddit who told me RB really like a very solid ground setup tied to the battery so going to try that next, I’m stumped if that doesn’t do it. Never had a car have spark and fuel and not fire off before. Only thing I can think is the spark is intermittent/weak because of grounds nothing else really makes sense at this point 
    • I am having close to the same issue. Can you help me with what wire you grounded to get your pump to trigger?
×
×
  • Create New...