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11-18-2003, 03:54 PM | #1 |
Scooby Newbie
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Join Date: Aug 2002
Location: Puerto Rico
Vehicle:2000 2.5RS-T white |
2.5RS-T Track times
How hard is to get some into the 12 seconds with a 2.5RS-T?? Anyone has done it?? and whith what mods????
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11-18-2003, 04:01 PM | #2 |
Scooby Guru
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Vehicle:99 2.5RS, '85 911 '73 914 and 2012 BRZ |
There's a registry on this site that can let you know that info...There are a number of 12 second RS-T's running around...
Just have the money to handle this if you go for it... http://forums.nasioc.com/forums/show...hreadid=455473 |
11-18-2003, 04:10 PM | #3 |
Scooby Newbie
Member#: 23233
Join Date: Aug 2002
Location: Puerto Rico
Vehicle:2000 2.5RS-T white |
Just whant to see what is needed to run some 12's
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11-18-2003, 09:47 PM | #4 |
Scooby Guru
Member#: 39936
Join Date: Jul 2003
Vehicle:99RS TWE&SCAT EJ257 Hydra+HMist+PPG+35R=DEATH |
ive got a pretty good list for 11's
mrt transmission, dog box of some sorts parrell fuel mod big turbo, 20g or t3t4 650 cc injectors 3" exhaust, turboback high flow fuel pump standalone computer bigger axels/half shafts beefy clutch thats all i can think of i am tired tho |
11-19-2003, 11:07 AM | #5 |
Scooby Specialist
Member#: 8533
Join Date: Jul 2001
Location: Austin TX
Vehicle:2002 2.5 RS-T LudeSpeed S. III W/ FMIC |
I've got all that
At least I will as soon as all the parts show up for the KAAZ (not MRT) tranny. I'll be sure to post times next time I make it to the track. |
11-19-2003, 09:29 PM | #6 |
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Stock 2.5 Block won't hold enough power for 11s. It will for high 12s, but not for long.
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11-19-2003, 11:41 PM | #7 |
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Member#: 39936
Join Date: Jul 2003
Vehicle:99RS TWE&SCAT EJ257 Hydra+HMist+PPG+35R=DEATH |
drift kings car made an 11.5 pass
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11-19-2003, 11:42 PM | #8 |
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Join Date: Jul 2003
Vehicle:99RS TWE&SCAT EJ257 Hydra+HMist+PPG+35R=DEATH |
drift kings car made an 11.5 pass stock block, there are a couple other pople who have too like ChAi well he ran a 13.1 grannyshifting and on pump gas, until his stock rod broke
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11-20-2003, 01:43 AM | #9 | |
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Quote:
Who? What motor? We are talking about 2.5RSs here, not STis, not any other kinda car. sorry 13.1 is far from 11s |
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11-20-2003, 09:45 AM | #10 | |
Scooby Specialist
Member#: 1277
Join Date: Apr 2000
Chapter/Region:
NWIC
Location: issaquah, WA
Vehicle:1999 Minnam Stage 2 Cobb Stage3 engine, TEC3 |
Quote:
Blitz Nur Spec 3' Exhaust Sys Minnum stage 2 turbo Greddy Type-S BOV Tial Wastegate Turbonetics T3/T4 Super E60 Ball-Bearing with Stage 3 compressor and turbine wheel) STI fuel pump NGK platinum spark plug (BKR7EVX-11) 10mm Spark plug wire JE 8.5:1 low compression Piston TEC 3 RC 600cc injector (PB8X-600) Electromotive 02 sensor This engine was able to make around 400+hp with 1.3bar of boost. and now i'm going to go with Cobb stage 3 engine with stage 3 head new header and 255lph fuel pump. i should be able to run low 12 with pump gas and maybe high 11 race gas . oho with new dog box ofcrose when i have enough money |
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11-20-2003, 01:43 PM | #11 |
Scooby Guru
Member#: 39936
Join Date: Jul 2003
Vehicle:99RS TWE&SCAT EJ257 Hydra+HMist+PPG+35R=DEATH |
i still might wanna have u tune my car, maybe driftkings too well pay u in beer/goods
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11-20-2003, 02:16 PM | #12 |
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Location: Last Minute Motorsports
Vehicle:2006 trailblazer SS black |
CHai... You dont have any upgraded rods in your car? How much boost are you running if you dont mind me asking?
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11-20-2003, 07:16 PM | #13 | |
Scooby Specialist
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Vehicle:1999 Minnam Stage 2 Cobb Stage3 engine, TEC3 |
Quote:
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12-05-2003, 02:02 AM | #14 |
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Vehicle:06 sti my $$ pit 05 xt sold |
how does everyone like the dog box trans.. is it a pain to down shift? will it be hard to down shift at race track?
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12-05-2003, 03:22 AM | #15 |
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Vehicle:'01 GC8 Dinged STM '09 Concours 14 ABS Black |
6mt is cheaper, cleaner, more driveable, and stronger
at least if you want to drive the car every day |
12-05-2003, 03:34 AM | #16 |
Scooby Specialist
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Location: lakewood wa
Vehicle:06 sti my $$ pit 05 xt sold |
how do your figure 6mt is cheaper?
5 spd trans bolts in 6spd need new drive shaft, differential, axles and i'm sure there is more but dont know. any suggestions on how to have a good strong driveable trans. dont want to do the 6spd swap |
12-05-2003, 03:41 AM | #17 |
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becuase you can get a full 6mt driveline for about 6g's, a dogbox alone that will hold will cost you 6g's, not to mention you still need a decent differential in the rear
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12-05-2003, 04:02 AM | #18 |
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someone in the classifieds is selling one ready to go including shipping for $4,500 all you need to do is install
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12-05-2003, 06:59 AM | #19 |
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I think he wants an exhchange though(4500 for the tranny plus you send him your stock tranny)
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12-05-2003, 02:26 PM | #20 |
Scooby Specialist
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Join Date: Jul 2001
Location: Austin TX
Vehicle:2002 2.5 RS-T LudeSpeed S. III W/ FMIC |
6spd stronger than a full dog box... yeah, I think not
More drivable... defiantly. But not stronger. |
12-05-2003, 06:05 PM | #21 | |
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12-05-2003, 06:39 PM | #22 |
Scooby Specialist
Member#: 8533
Join Date: Jul 2001
Location: Austin TX
Vehicle:2002 2.5 RS-T LudeSpeed S. III W/ FMIC |
That seems pretty hard to believe. What kind of dog did you have and was is a full dog box or did it have synchros?
I only say so because I know of a rally team in Canada who has broken two 6spds and now runs full dog boxes w/ no issues. It seems to me that it comes down to manufacturer more than anything else. |
12-05-2003, 08:46 PM | #23 |
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Ive had a full dog, and half dog,
both broke, light loads (one under NA power) ive seen MANY more break not yet seen an 6spd break... |
12-06-2003, 02:00 AM | #24 |
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The 6mt's ARE much stronger than a dog box in any 5mt case you can come up with. Subarus 5mt case is pretty much the exact same gearbox that subaru has been using in all their 5mt cars for close to 2 decades... state of the art and bomb proof back when a 115 hp turbo car was very potent... now they're glass. The problem isn't due to the gears (like kaos said, he's broken 2 dog boxes) the problem is because the transmission case on the 5mt's is EXTREMELY flexible, under heavy loads the gears WILL move away from one another in any direction the flexible housing allows, suddenly your super indestructible magnafluxed cryo treated gears are only meshing halfway, begin to slip and then destroy themselves. The 6mt has MUCH wider gears (more difficult to slip off one another) and a case designed from high strength alloys using some hardcore computer modeling (this is why the 6mt is MUCH larger, and like 80lbs heavier), as opposed to 20 year old readily available metals and best guess modeling on graph paper. If swapping out other drivetrain components is really that much of a big deal, a dog box in a 5mt case that has ALOT of bracing welded to the outside of the case will survive some pretty harsh abuse, but case flex is still an issue. Some rally drivers like dog boxes over synchros because you can change gears much faster (don't have to wait for synchros to spin up) and long term durability isn't as much of a concern. For a road car not only are dog boxes noisy as hell (unless some company started making helical cut gears in a dog box) the dogs tend to wear out relatively quickly, no matter how well you treat the gearbox, and once the dogs are worn, all the gears have to be junked and re-machined.
Last edited by no-coast-punk; 12-06-2003 at 02:05 AM. |
12-06-2003, 09:27 AM | #25 |
Scooby Specialist
Member#: 8533
Join Date: Jul 2001
Location: Austin TX
Vehicle:2002 2.5 RS-T LudeSpeed S. III W/ FMIC |
That all makes sense.
It was my understanding however that the straight cut profiles of a dog box are supposed to limit the amount of case flex because the gears only try to force each other away left to right instead of pushing on each left to right as well as front to back like they do w/ the stock cut. Is that incorrect then, or dose it just not help enough to save the gear set? Guess I should have researched a bit more before I spent a load of money on a gearset . |
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