ErnieT

iTrader: (2)

Wow, thanks for all the good advise. You seem well versed in 800hp RX7's. Can you please post some vids of yourself running sub 9sec runs so I can take some pointers. That way I won't have to hire a driver.

Viking War Hammer

iTrader: (8)

What he says is true. You've already got what it takes........ but you're just doing it wrong

junito1

No I dont think i will ever have the funds to run 9 seconds...

But Your are making basic launching mistakes that can be made in a 140hp car...
Just work on your launch. I bet you can do it without any new tire or suspension.

YOU CAN DO IT!

bigdv519

iTrader: (3)

Hey Ernie...first of all I'm no expert, but I have a few questions.

Your launching off a 2step right? Is that the only way you launch? Have you ever tried free revving it and dumping? I personally can never dump the clutch with my near stock setup, so I always end up free revving and slipping off the line. That has always gotten me my fastest 60'. The power isn't instantly put down and some grip can actually be acheived. Just a thought.

Dom.

ErnieT

iTrader: (2)

Yes guys, I've tried free reving it. You guys forget, I've been around for awhile. I've had 3 FD's now. You can't free rev my car. The turbo is too big. It needs boost. How much boost is the question. I know many of you are trying to help, but this thread was posted for people like Crispeed, Enzo, and Ari. People who actually HAVE went 9's and have experience in the power Im making. Its easy to say do this or that when you have 450whp. Running a 500hp RX7 down the strip and a 800hp RX7 down the strip is NOT the same. As much as alot of you may want to think it is, DO IT, then you will see. Again, not being an D#$k, but I was trying to get input from the guys that have been there.

bigdv519

iTrader: (3)

Your right, running a 500hp RX-7 down the strip and an 800hp RX-7 down the strip are two different things.

Not trying to be a dick, just trying to help. Theres obviously a problem with the launch.

Viking War Hammer

iTrader: (8)

ernie, you aren't the only one who's been there.......... remember, i went 6.30's in the 1/8 and 10.03@119mph with 180 whp less than you.....

i made the same threads you're making now, cause the car wouldn't keep rpm's between shifts, and the car would blow the tires away with the 2 step.....

which 42 do you have? must me a big one if you can't launch without boost

listen to people man, you're getting alot of good advice

Boostn7

Well, you're right and you may have to bring down your power since both Ari and Crispeed ran 9's with less power.
Overpowering tires in 1st gear is not that difficult.

Getting a good launch technique will take some practice while also messing with suspendion, air pressure, rpms, boost and clutch slippage...

Unless your rear suspension is completely unloading allowing massive wheel spin you need to lower the power at the launch(NO anti lag) or all around to get a good starting point.
Some wheel spin is good but you need keep it in control by pregressively feathering the gas till fully hooked then go WOT........( I know, easier said then done, but you'll get the hang of it.)

I honestly believe if you had applied a squeezing tecnique over your stomping of the gas pedal at the launch you would have been in the 9's.
Your 1st gear would have traveled a bit further down before 2nd gear helping with acceleration.

Maybe slicks alone will get you in the 9's.

Just helping...no more posts till I run a 9 :-)
JD

ErnieT

iTrader: (2)

^^
No, I appreciate your help John.

aruba

ernie on my car I have the gt42 with 1.01 a/r
i believe you have a larger a/r, if you do that might be 1 issue
I launch on free revs i get in my data log about 8-10 psi launch at 99% trottle

and i have cut 1.4 60ft before

i think am definitely going to put a 67mm on my car, i should be able to make 600hp
you might need to raise the front up on your car a bit
i did that and lowered the 60ft
but it all depends on the track traction

just dont go and spend all that money on those shocks
try using different springs, i was thinking on this

blitzboy

Yes they do work for drag, My tuner ran these a few years ago and hit late 9s runs, also on my car they work quite well the weight transfer has been very good in my experiance, no wheel hop no dramas, not much wheel spin, I do make sure I preload the drive train prior to launch and ease in the throttle. Will find out later if they still work as I up the power,
Plus HKS have built many Drag cars over the years eg the Big power Silvia and the Skyline.
But yes they are expensive bit of kit

Viking War Hammer

iTrader: (8)

people run 9's on cheap tokiko's as well. What makes the HKS better?

you could buy a doube adjustable strange coilover/strut combo for the rear/front and be done with it........ it wouldn't take much to adapt them............and it would be 1000 times better than the overpriced hks hype

blitzboy

Just answering the questions if they actually work for drag my man.

Didnt say they were any better then Tokico's, Tokicos are not sold officially here in the UK, so if we did import them they probably would'nt be far off in cost to HKS in reality due to our heavy import and Duty taxes.
So thats why we normally go for HKS or TEIN over here.

ari

Ernie, I don't have time to read all the replies right now but I think I have the answer to your issue. It actually came from the fast and furious movie. It's been in my signature the entire time... you should have looked!

ENJOY!!!

Torque South

Unfortunately the only tuner that could fix that was gunned down by gangters on motorcycles.... now he'll have to rely on second class tunas here on the forum.

Indian

iTrader: (1)

Well Since everyone is adding their 2cents, I'll chime in. Ernie, I have been watching you for years and congratulations on the impressive FD. You have accomplish what is a dream to many.

Moving on then, I don't have a 800hp, I do however have one that make around 600whp. Yes I do understand that a 800hp car is a different car to drive than a 600hp, just like how I would hope you can understand that there are people on this forum that could probably drive my 600hp car and beat yours.

I personally don't think a lot of these replies have helped you but, like myself these guys are behind you and want to see you get into the 9's. Being Frank, although you have "years" experience with FD's, you also quoted that your experience means nothing to the car you have now. With all of your experience, you have never had a 800hp FD so this is as new to you as a brand new baby.

I agree with the guys here, watching your runs, that your launch is the problem, as you uncovered in the thread(joke). You need to move back to basics ernie, Forget the launch control, after the 1/8 and start taking notes on everything and get back to trying to learn your car for what it is, without getting into the extra gagets.

When I say notes, I mean. write down data on everything, track conditions, tire pressure, temps, suspension settings, rpm launches, and shifts. This will be the only way for you to get this car and yourself consistent. You need data so you can see and predict what is wrong. If you were doing things right, you wouldn't have made this thread.

Unfortunately, our cars don't see the same suspension results as other cars, but here is my setup and experience, So this reply doesn't just seem like I'm only bashing you .

Tein Hyper Flex with QA1 Springs - Best 60ft was with settings full soft on all 4 corners.
Spring rates :600lbs/450 F/R
Launch bars and Toe links from gothamracing
NO brace
2 deg positive camber in the rear
275/40/17 MT ET streets
11.5 psi with a long burnout

MY best 60ft has been 1.70 with no VHT on a track nothing close to what you guys have up there.

My point for telling you my setup up is to show you that you have to play with the suspension a ot, when it comes down to a particular track, day, suspension settings and of course track quality. I don't think everyone hooks the same on any track. So make sure your testing on the same track over and over, and pick a favorite lane and stick with it. Once your suspension is dialed inthen move to the other lane and see the difference.

You see Ernie, Peter Parker's grandpa said it right, "With Great Power comes Great Responsibility". Just because you have the power doesn't mean you know what to do with it.

You need practice. Your driving needs to improve, and no matter how much and what Dan, Harry, Cris,Steve,Ito,John Force tell you, unless you can get in that car and apply it, it's all a waste of time. Experience is what you need, seat time. All these guys can tell you is what works for them. With all your other experiences, I assume you have watched others with high HP cars with the same type of suspension and see what they do and how they do it. Watching a 1000hp mustang with a solid axle is not going to help your situation, two different types of suspension tuning.

I hope I haven't offended you in anyway, and do apologize if I have, that was never my intention. I just see that you have one part of the equation and need to work on the other side of it if you want to go any further.

Hope you get it sorted Bro.

LETHAL RX7

iTrader: (1)

If you watch the car in slow motion it looks like the car is too loose in the rear. You can watch the car squat then bounce right up again and then try to replant the tire. I have the HKS drag coilovers and if i were to do it again i would just get a true double adjustable and make them work...no problems with the hks but just nothing to rave about. Do you have any better video of the car? or are you going back down to cecil soon? ifso ill probally be down there. We were at the ADRL race at MIR..that weekend
Greg

tdazmansFD

iTrader: (1)

10.04, We're talking about a cheeseburger here.
Just don't eat Dinner the Night before, or breakfast the day of. Oh and, be sure to drop a Duece before staging. Good Luck on your Quest!
I look forward to the "I ran a9 second pass..." Thread!

D

bigdv519

iTrader: (3)

I went back and looked at the video...and I 100% found the right answer.

Take off that un-needed parachute and save a few pounds. Run nines all day!!!

Just busting your chops...lol. sorry. lol.

silentblu

iTrader: (1)

It was Uncle Ben

Indian

iTrader: (1)

my bad. uncle Ben it was.....

tearbo2

iTrader: (2)

hey ernie, I got it !!!!!!!!!!!..................i'll trade you my 60 ft (1.44@9psi 2-step) for your 1/8 mile mph !!!!! your 115 mph for my 106 mph lol....... jus bs n ya my problem is tire clearance gonna change the ride height to clear the body and c what happens next ????? this is whats holding me back right now, it's been a problem for a long time, sometimes it's the simple things, and sometimes not.
keep up your effort cuz it's only gonna pay off !!!!

see ya in the 9sec club soon ...............

DRAGON_PERFORMANCE

We ran 9.1 @158mph 28/10/06 on petrol with HKS h pattern box. I dont think we launched the car at anywhere near full potential and the box had a tall first cus its a circuit box, but the power pulled us through and got the time, We also ran up to 160.5 then, but retire the car after that day. If I was doing it now id have a similar set-up, but with air suspension. We used to run modified HKS Drag coilovers, 1.4 best sixty foot. No launch control, and it was hard to launch cus of the big turbo, hittting late in the revs.
Was an evil car, I used to take out on the road sometimes, scary fast
http://www.youtube.com/watch?v=lS6XmblVbOc

sleeper7

Ernie,
do you have a "flow control valve" on your clutch line? I heard it releases the clutch slowly off the line to prevent wheel spin, but does not effect the clutch when upshifting. Just a thought.. If you already do then never mind.....
chuck

crispeed

Ah hah!!!

Ernie I have one for sale that's fully adjustable. It works real nice with the AEM also. I'll provide all the instructions and tips.