Further room for improvement? 1/4mile
15 June 2005, 12:01 PM
#61
Was running 32-34psi on the 1.7s 60ft. Tried dropping them late in the day but didnt get another clean run.
Could do with some lighter rims as my OE 16"s are quite heavy.
It may well be that I wont be able to better a 1.70 on drag surface.
No doubt with a tweak to the map for a drag run would do it
...dont really want to do that though and just want to see what I can do on my daily-driver map.
The only thing I can play with is weight. Cant see any improvement on technique.
15 June 2005, 12:11 PM
#67
current alloys are the OE 6-spoke
http://i2.photobucket.com/albums/y4/...front_side.jpg
Rubber is Maxsport RB5s purchased from our friend Graham for £75
http://i2.photobucket.com/albums/y4/...front_side.jpg
Rubber is Maxsport RB5s purchased from our friend Graham for £75
19 June 2005, 10:47 AM
#68
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Originally Posted by BOB'5
Wel I cant increase the power or anything, its on one map which is my everyday road map.
Bob
Bob
Now, one way to do this without me visiting you again
is to run the car a bit leaner on fuel. This can be done by adding some methanol to the fuel you normally run. I'd recommend 10% to start with. Normally leaning out the AFR requires less ignition timing but the methanol has the dual effect of increasing the octane which compensates to an extent.
Methanol is cheap, when you consider that it is replacing fuel costing 90p/ltr it works out one of the cheapest octane boosters available.
Also soak your intercooler with a 50/50 water/methanol mix before the launch.
cheers
Andy
19 June 2005, 08:31 PM
#70
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There you go Bob, get some racing tyres like Pavlo and you are well into the 11's !
Every 1/10th saved on the launch is said to be worth 2/10ths off the ET.
Andy
tyres like Pavlo and you are well into the 11's !Every 1/10th saved on the launch is said to be worth 2/10ths off the ET.
Andy
20 June 2005, 11:16 PM
#72
Originally Posted by Andy.F
Bob, when I mapped your car via EcuTeK it was with a safety margin suitable for flat out top speed running. During a 1/4 mile run you can run with a narrower safety margin (due to the short run duration) and hence increase power.
Now, one way to do this without me visiting you again is to run the car a bit leaner on fuel. This can be done by adding some methanol to the fuel you normally run. I'd recommend 10% to start with.
Normally leaning out the AFR requires less ignition timing but the methanol has the dual effect of increasing the octane which compensates to an extent.
Methanol is cheap, when you consider that it is replacing fuel costing 90p/ltr it works out one of the cheapest octane boosters available.
Also soak your intercooler with a 50/50 water/methanol mix before the launch.
cheers
Andy
Now, one way to do this without me visiting you again
is to run the car a bit leaner on fuel. This can be done by adding some methanol to the fuel you normally run. I'd recommend 10% to start with. Normally leaning out the AFR requires less ignition timing but the methanol has the dual effect of increasing the octane which compensates to an extent.
Methanol is cheap, when you consider that it is replacing fuel costing 90p/ltr it works out one of the cheapest octane boosters available.
Also soak your intercooler with a 50/50 water/methanol mix before the launch.
cheers
Andy
Andy: I currently run 100mls of NF per tank on the road and 100mls per half tank on the drag strip. Would I need to reduce the NF qty when running methanol?
Thanks,
Bob
Even Keiths R32 'only' did a 1.65 on his 9.3sec run from memory.
20 June 2005, 11:56 PM
#74
\m/ ^_^ \m/
i would of thought the methanol would replace the NF you're using Bob 
will be using it in mine in the near future
will be using it in mine in the near future
21 June 2005, 07:05 PM
#82
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ok guys,
I was at york on sunday, the first time and probs one of the last, not really for me...
I hav a new WRX ppp, bog standard, what times should i be getting???
The day was very hot, 34 deg at trackside, the cars temp gauge was well up, couldnt cool the thing down, I did 6 runs, my final run was my best
Reaction .700
60ft 1.961
1/8 mile 1.961
1/8 mile 76.10 mph
1/4 mile 14.098
terminal 94.95
i know theres room for improvement on the reaction, but what i want to know is, is this anywhere near right, if so, thats me done, if not, could someone give me a little help and i think i may be tempted to better it
Thanks
I was at york on sunday, the first time and probs one of the last, not really for me...
I hav a new WRX ppp, bog standard, what times should i be getting???
The day was very hot, 34 deg at trackside, the cars temp gauge was well up, couldnt cool the thing down, I did 6 runs, my final run was my best
Reaction .700
60ft 1.961
1/8 mile 1.961
1/8 mile 76.10 mph
1/4 mile 14.098
terminal 94.95
i know theres room for improvement on the reaction, but what i want to know is, is this anywhere near right, if so, thats me done, if not, could someone give me a little help and i think i may be tempted to better it
Thanks
21 June 2005, 09:53 PM
#83
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bob,
if your brave enough , or mad enough even
, flat shifting is worth about 1/2 a second but be warned they are brutal. I only did 5 runs in my car and now the headers are leaking like a ba5tard , not sure if it's a gasket or a cracked weld yet as john banks has had to borrow my car while his gearbox is fixed , with our combined hashyness. you have been warned.
with john banks car I did 2 flat shift runs and got 11.8's compared to him driving and lifting but still very quick with the stick and doing 12.3's. in my car it was similar with jb getting 12.6 iirc and me doing a 12.18.
like you I have ecutek and had added 1.5litres methanol to approx 20litres optimax and 100mls NF. I have 3port boost control with a needle valve to control peaks which where about 1.65+bar (SPA gauge recall), mapped to hold 1.4 rolling to 1.2 bar at the top, not sure what it was doing on the day as I was watching the rev counter more.
realistically without flat shifting I feel my car is a mid 12, with jb's a low 12 but we both do run 6speeds. being course enough dropped both cars a level but I will not be doing it again,,,,,probably not,,,,,may-be . I used to say 10laps of a track felt nicer to the car than one 1/4 drag , now I feel it's closer to 20laps.
my fastest tv was at 40psi tyre pressures , dropping to 35psi dropped 3mph off my tv but gave me my best time , dropping to 30psi knocked another 3mph off the tv. I have a UK 6speed so do spend most time in the taller ratio 5th gear than the others which may explain this.
if your brave enough , or mad enough even
, flat shifting is worth about 1/2 a second but be warned they are brutal. I only did 5 runs in my car and now the headers are leaking like a ba5tard , not sure if it's a gasket or a cracked weld yet as john banks has had to borrow my car while his gearbox is fixed , with our combined hashyness. you have been warned.with john banks car I did 2 flat shift runs and got 11.8's compared to him driving and lifting but still very quick with the stick and doing 12.3's. in my car it was similar with jb getting 12.6 iirc and me doing a 12.18.
like you I have ecutek and had added 1.5litres methanol to approx 20litres optimax and 100mls NF. I have 3port boost control with a needle valve to control peaks which where about 1.65+bar (SPA gauge recall), mapped to hold 1.4 rolling to 1.2 bar at the top, not sure what it was doing on the day as I was watching the rev counter more.
realistically without flat shifting I feel my car is a mid 12, with jb's a low 12 but we both do run 6speeds. being course enough dropped both cars a level but I will not be doing it again,,,,,probably not,,,,,may-be
. I used to say 10laps of a track felt nicer to the car than one 1/4 drag , now I feel it's closer to 20laps.my fastest tv was at 40psi tyre pressures , dropping to 35psi dropped 3mph off my tv but gave me my best time , dropping to 30psi knocked another 3mph off the tv. I have a UK 6speed so do spend most time in the taller ratio 5th gear than the others which may explain this.
21 June 2005, 10:58 PM
#84
John,
Flat shifting may not be worth that much, don't underestimate the effect 2 different drivers can have in an otherwise identical setup. Speed of change has a bigger effect than the flatshifting itself.
Paul
Flat shifting may not be worth that much, don't underestimate the effect 2 different drivers can have in an otherwise identical setup. Speed of change has a bigger effect than the flatshifting itself.
Paul
21 June 2005, 11:13 PM
#85
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true as iirc , last year with jb's car I was doing 2 second 60foots to his 1.8's and did make this up and shaved another 0.1 off his best without flat shifting back then.
22 June 2005, 01:52 PM
#87
T-uk: What turbo were you using? Not sure of the benefits on a std TD05 as I tend to drop right in the best torque band on gearchanges (I think). Maybe more beneficial on bigger turbos?
Also its my daily driver I try not to be too hard on it as its still the std uk 5speed gearbox.
Will bear it in mind if I dont manage to break into 11s with methanol. I think that I can better 12.09 even on current setup.
Will try and get some decent vids next time which may allow for analysis on shift speed.
Buck: only had it on a RR once. 352bhp and 294lbs torque. The graph suggests the car may have been slipping. Am signed up to the RR day at WRC to see what it will make without slipping altough I dont really think much of RR figures.
Also its my daily driver I try not to be too hard on it as its still the std uk 5speed gearbox.
Will bear it in mind if I dont manage to break into 11s with methanol. I think that I can better 12.09 even on current setup.
Will try and get some decent vids next time which may allow for analysis on shift speed.
Buck: only had it on a RR once. 352bhp and 294lbs torque. The graph suggests the car may have been slipping. Am signed up to the RR day at WRC to see what it will make without slipping altough I dont really think much of RR figures.
22 June 2005, 07:08 PM
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I have a td05fe16g , aps fmic , small bore gruppe-s headers , aps CAK , mapped by a doctor **** for optimax only with a 7200 or 7300 rev limiter.
I was tying to rev to about 7000 in first , about 6800 in 2nd and 6700 after that. dastek and star rollers both show around 340bhp at around 6500rpm, with just over 300ft/lb (over 280ft/lb of torque between 3700 to 6300) if that helps.
from what I hear you might struggle to make boost at WRC. if they have good cooling for the TMIC and drop the intakes slightly before the run by "cruising" at about 3000rpm for a while , rather than going on the rollers , tying down , heat soaked and going straight into the run then it might help. my boost seems more stable at dastek(similar to what I see on the road) but seems sluggish coming in and oscillates about a bit at star. if I was going to run at star again I would probably fit a dawes , set it out on the road to hold my 1.4bar and then turn it in a turn for the rollers.
I was tying to rev to about 7000 in first , about 6800 in 2nd and 6700 after that. dastek and star rollers both show around 340bhp at around 6500rpm, with just over 300ft/lb (over 280ft/lb of torque between 3700 to 6300) if that helps.
from what I hear you might struggle to make boost at WRC. if they have good cooling for the TMIC and drop the intakes slightly before the run by "cruising" at about 3000rpm for a while , rather than going on the rollers , tying down , heat soaked and going straight into the run then it might help. my boost seems more stable at dastek(similar to what I see on the road) but seems sluggish coming in and oscillates about a bit at star. if I was going to run at star again I would probably fit a dawes , set it out on the road to hold my 1.4bar and then turn it in a turn for the rollers.
Last edited by T-uk; 22 June 2005 at 07:11 PM.
22 June 2005, 07:19 PM
#89
V similar spec to me, except I have a STi8 TMIC. I use dawes for boost control (set @1.5bar) although I dont fancy messing around for a RR. I actually dont even know why I am bothering with RR other than to satisfy my curiousity. Lower the figures the better as the blackstuff doesnt lie
Bob
Bob
22 June 2005, 08:41 PM
#90
T-uk,
WRC are the very good IMO. It's not the usual 'tie down and thrash' like some. The fans are pretty good. 'Kin big centrifugal aimed at the front and some outrageously noisey extracts, they can be heard 100+ yards down the road.
The guys who run it are careful with each car, check fluids & tyre pressures before each run. They also run the car up a few times until they achieve a consistent figure.
Gerry,
may be going to that session too.
WRC are the very good IMO. It's not the usual 'tie down and thrash' like some. The fans are pretty good. 'Kin big centrifugal aimed at the front and some outrageously noisey extracts, they can be heard 100+ yards down the road.
The guys who run it are careful with each car, check fluids & tyre pressures before each run. They also run the car up a few times until they achieve a consistent figure.
Gerry,
may be going to that session too.