Time Slips
Got a chance to go up to a test n tune this past Sunday...and of all things my car decides to eat its transmission ON THE WAY HOME, for whatever reason. 
Anyway, ran an 11.6 @ 128.5. Idk what the hell I'm doing wrong getting out of the hole, although in my defense ESTA is a horrible track. The day was very hot, so the track was pretty tacky, but the heat was taking its toll on all the cars. I have the RaceLogic launch control, and in hindsight should have set my launch point for ~6500 RPMs, since I had more traction on the track. I launch at 5500 RPMs on the street, but there's definitely more slip there, so it's easier to keep RPMs up.
At the track I'd either dump the clutch a bit too soon and bog, or ride it out too long and spin/not get out of the hole fast enough. Such a damn fine line with these cars... I was going to run my ET streets, but decided against it since we were already running late. ****, I'm almost trapping 129 MPH. The damn car should be a 10 second car if it would ever get out of the hole like it should.
Sorry, no video. I told my friend my camera didn't have much battery life, yet he was recording some other retarded cars at the track that had no significance. My luck, being as awesome as it always is, the camera died as I pulled up to the line to run my 11.6. I was the fastest street car there. Link to my slip is in my sig.
Anyway, ran an 11.6 @ 128.5. Idk what the hell I'm doing wrong getting out of the hole, although in my defense ESTA is a horrible track. The day was very hot, so the track was pretty tacky, but the heat was taking its toll on all the cars. I have the RaceLogic launch control, and in hindsight should have set my launch point for ~6500 RPMs, since I had more traction on the track. I launch at 5500 RPMs on the street, but there's definitely more slip there, so it's easier to keep RPMs up.
At the track I'd either dump the clutch a bit too soon and bog, or ride it out too long and spin/not get out of the hole fast enough. Such a damn fine line with these cars... I was going to run my ET streets, but decided against it since we were already running late. ****, I'm almost trapping 129 MPH. The damn car should be a 10 second car if it would ever get out of the hole like it should.
Sorry, no video. I told my friend my camera didn't have much battery life, yet he was recording some other retarded cars at the track that had no significance. My luck, being as awesome as it always is, the camera died as I pulled up to the line to run my 11.6. I was the fastest street car there. Link to my slip is in my sig.
" Idk what the hell I'm doing wrong getting out of the hole, although in my defense ESTA is a horrible track."
Well of course you need to run the et streets if you want a good start. The clutch needs a little slip, not too much and as you know don't just dump it, you would benefit from a tilton clutch flow control valve to get good consistent launches.
Well of course you need to run the et streets if you want a good start. The clutch needs a little slip, not too much and as you know don't just dump it, you would benefit from a tilton clutch flow control valve to get good consistent launches.
Zilla Killer
Joined: Mar 2001
Posts: 333
Likes: 0
From: New Zealand
12.3@113
60' - 1.882
330' - 5.296
1/8 - 8.028 @ 89
1000' - 10.3381
Full weight, street trim, 3/4 tank of gas. 265/30x18 Achillies 123S tyres.
HKS TO4s, 16 psi 420rwhp (dyna pack dyno) is this speed (113mph) indicative of 420rwhp (again on dynapack dyno)
60' - 1.882
330' - 5.296
1/8 - 8.028 @ 89
1000' - 10.3381
Full weight, street trim, 3/4 tank of gas. 265/30x18 Achillies 123S tyres.
HKS TO4s, 16 psi 420rwhp (dyna pack dyno) is this speed (113mph) indicative of 420rwhp (again on dynapack dyno)
Full Member
Joined: Mar 2012
Posts: 128
Likes: 1
From: Mass
I have trapped between 110-112 mph and I had dynoed 318 hp on stock twins on a dynojet.
Zilla Killer
Joined: Mar 2001
Posts: 333
Likes: 0
From: New Zealand
I thought trap speed seemed a little low for 420, though dynapacks I believe tend to read a little high. From what I can gather moroso slide calc suggest around 330rwhp. would love to put it on another dyno, though it has whiffed out a couple of puffs of grey smoke on gear changes now and then so maybe a little 'loose' now lol
Cold November Day running super rich 10.0/10.4 A/F
Xavier from RX7 Store build and tune from 2 years ago (421 HP)
ET 10.977
125.87 MPH
Xavier from RX7 Store build and tune from 2 years ago (421 HP)
ET 10.977
125.87 MPH
Last edited by JustAnother7; Apr 9, 2013 at 07:27 PM.
Full Member
Joined: Jan 2013
Posts: 54
Likes: 0
From: Sydney
113mph with a 1.8 is roughly 300rwhp.
Hell yeah!!! 6 year BUMP
Went to the local track with a buddy for some fun runs… man I have gone to the strip in probably 8years!
Just street tires with no traction in 1st, 2nd… was trying to baby it out of the hole but that didn’t work.
In need of some tires and a driver mod 👍
Was in right lane and running 16.5psi and faded down to 15.8psi, once I got going a hooked she pulls strong for a 8374iwg
Steve
https://cimg2.ibsrv.net/gimg/www.rx7...3fc0582b0.jpeg
Went to the local track with a buddy for some fun runs… man I have gone to the strip in probably 8years!
Just street tires with no traction in 1st, 2nd… was trying to baby it out of the hole but that didn’t work.
In need of some tires and a driver mod 👍
Was in right lane and running 16.5psi and faded down to 15.8psi, once I got going a hooked she pulls strong for a 8374iwg
Steve
https://cimg2.ibsrv.net/gimg/www.rx7...3fc0582b0.jpeg
Last edited by estevan62274; Feb 22, 2022 at 08:51 AM.
11.8@118
Latest run with MT drag radials and @15.5psi
https://cimg4.ibsrv.net/gimg/www.rx7...bd7aff2a6.jpeg
Steve
https://cimg4.ibsrv.net/gimg/www.rx7...bd7aff2a6.jpeg
Steve
First off your car moves out.
If you post the dates and times of your runs, I'll look up the DA. Dragtimes has a tool to do it.
DA = Density Altitude can influence horsepower numbers and quarter mile times; like Correction Factors are for Dyno numbers
from Wiki...The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation. In other words, the density altitude is the air density given as a height above mean sea level. The density altitude can also be considered to be the pressure altitude adjusted for a non-standard temperature.
Both an increase in the temperature and a decrease in the atmospheric pressure, and, to a much lesser degree, an increase in the humidity, will cause an increase in the density altitude. In hot and humid conditions, the density altitude at a particular location may be significantly higher than the true altitude.
If you post the dates and times of your runs, I'll look up the DA. Dragtimes has a tool to do it.
DA = Density Altitude can influence horsepower numbers and quarter mile times; like Correction Factors are for Dyno numbers
from Wiki...The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation. In other words, the density altitude is the air density given as a height above mean sea level. The density altitude can also be considered to be the pressure altitude adjusted for a non-standard temperature.
Both an increase in the temperature and a decrease in the atmospheric pressure, and, to a much lesser degree, an increase in the humidity, will cause an increase in the density altitude. In hot and humid conditions, the density altitude at a particular location may be significantly higher than the true altitude.