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#26
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As most of you know i am as often as possible out on the street with my G-Teck or on my RotoTest to try get some more hp out of my RX-8. Best time this year with the following mods, complete 2.5" Ferita exhaust,stock frontpipe no header, my 4" cold air inlet with Simota filter Shell V-Power 99, Motul oils, NGK BUR 9EQP plugs,pills mods and not to forget 45 000 km of hard driving is 60ft 2.27s and 14.42s-98.5 mph. This is with Hankook 235/35-18" street tires. My Bridgestone R tires is worth 0.2s if i heat them up! Hopefully i will achieve a 14.0-14.10s time after the mapping and with R tires. I always launch at 6-7000 rpm with the R tires, but sometimes the clutch smell a little bit!
/Lasse
/Lasse
#29
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I ran a 14.5(at gateway stl) with street tires, heavy 19" rims, midpipe, rb exhaust, intake and the racing beat race flash... That was launching at 4500-5000 feathering the clutch.. and shifting at like 9700 ish! It was fun once I figured out how not to wheel hop to half track... damn stock suspesion minus tein s-techs.
#30
RX-8 = Japanese MG
Join Date: Dec 2006
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I'd like to see what kind of 1/4 numbers someone gets with one of the high-end turbo kits putting 350 HP to the wheels and big 19" slicks + stiffer shocks on the back.
I'll bet it would do mid-12s set up like that.
Otherwise, I just don't see how this car can get into the 12s no matter how much power it has...the suspension just isn't designed to put it down to the pavement.
I'll bet it would do mid-12s set up like that.
Otherwise, I just don't see how this car can get into the 12s no matter how much power it has...the suspension just isn't designed to put it down to the pavement.
#31
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#35
8 all the way
Join Date: Nov 2005
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My best time stock was a 15.0. My best time with the greddy kit on was 14.3. That was just the greddy kit at stock boost. It was never tuned it was bolted on the car thats all. But I did also run the car with 20s, without the 20s I would have hit high 13s easy.
#36
It's a Cavalier
![Roll Eyes (Sarcastic)](https://www.rx8club.com/images/smilies/rolleyes.gif)
Even you don't care about 400m times, you should care about the trap speed your modified cars make at the end of the 1/4 mile. It's measurable, and it translates to power under the curve. I trapped 107mph stock, and you know what, a bunch of other stock GTO's do as well. Its just a starting point, and you can measure the value of the mod by how it increases your trap. That's real, and I don't see how you can argue that. A stock RX8 will trap about 94-95mph. Start there and work youre way up.
I couldn't care less about whether you demand these numbers from your aftermarket manufacturers, because I have no stake in the matter. I just simply suggest that more folks should ask for these sorts of stats, or go chase them yourselves. It doesn't matter what you E/T, because that's more about the driver, and how much hurt you want to put your car. Go out to the track and chase trapspeed, not E/T.
That's how most do it... not just the brick driving people.
#37
Rotary , eh?
iTrader: (1)
I guess you missed my point. Again.
Even you don't care about 400m times, you should care about the trap speed your modified cars make at the end of the 1/4 mile. It's measurable, and it translates to power under the curve. I trapped 107mph stock, and you know what, a bunch of other stock GTO's do as well. Its just a starting point, and you can measure the value of the mod by how it increases your trap. That's real, and I don't see how you can argue that. A stock RX8 will trap about 94-95mph. Start there and work youre way up.
I couldn't care less about whether you demand these numbers from your aftermarket manufacturers, because I have no stake in the matter. I just simply suggest that more folks should ask for these sorts of stats, or go chase them yourselves. It doesn't matter what you E/T, because that's more about the driver, and how much hurt you want to put your car. Go out to the track and chase trapspeed, not E/T.
That's how most do it... not just the brick driving people.
![Roll Eyes (Sarcastic)](https://www.rx8club.com/images/smilies/rolleyes.gif)
Even you don't care about 400m times, you should care about the trap speed your modified cars make at the end of the 1/4 mile. It's measurable, and it translates to power under the curve. I trapped 107mph stock, and you know what, a bunch of other stock GTO's do as well. Its just a starting point, and you can measure the value of the mod by how it increases your trap. That's real, and I don't see how you can argue that. A stock RX8 will trap about 94-95mph. Start there and work youre way up.
I couldn't care less about whether you demand these numbers from your aftermarket manufacturers, because I have no stake in the matter. I just simply suggest that more folks should ask for these sorts of stats, or go chase them yourselves. It doesn't matter what you E/T, because that's more about the driver, and how much hurt you want to put your car. Go out to the track and chase trapspeed, not E/T.
That's how most do it... not just the brick driving people.
However, it seems a large portion of the track drivers here do not go after F/I. A lot of the comments that come from them are along the lines of "50 extra horsepower would be great so the large displacement American cars didn't walk us down the straight, but I am not driving at the full potential of the car as is so I don't need it." most of the people going F/I, as it appears to me, are people that never take the car off the street. Kind of a waste, IMO, but that seems to be the trend. For now at least. I'm sure it will change as warranty periods drop and the car becomes cheaper and more available in the used market.
#38
Tailgaters beware
Not to mention the suspension has to be changed a lot to make it run well in a quarter mile and that would change the comfort and perofrmance in highway and track use. Its kind of a fork you hit with this car, you can do some stuff to get the track #'s really good or forget about that and set it up for 1/4 mile.
I am pretty much in the middle and will be looking at an adjustable suspension that maybe I can get good performance in both. Also having a good quarter and taking someone in a LT1 or 4.6 from a 25+mph roll on the street are 2 diff things. Even in bolt on form I hang with 350z's, 2006-07 mustang gts or 96-98 Z28's from a roll. With the setup the car has it just doesnt launch well but once its going and you stay in the high revs it keeps up with cars that are faster in the 1/4. That tells me that when I have FI and am making 330 rwhp 275 lbs tq, I will walk away from these cars on the highway or from 25+mph.
I am pretty much in the middle and will be looking at an adjustable suspension that maybe I can get good performance in both. Also having a good quarter and taking someone in a LT1 or 4.6 from a 25+mph roll on the street are 2 diff things. Even in bolt on form I hang with 350z's, 2006-07 mustang gts or 96-98 Z28's from a roll. With the setup the car has it just doesnt launch well but once its going and you stay in the high revs it keeps up with cars that are faster in the 1/4. That tells me that when I have FI and am making 330 rwhp 275 lbs tq, I will walk away from these cars on the highway or from 25+mph.
#40
Colorado's Fastest RX-8
Join Date: Apr 2007
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![Smile](https://www.rx8club.com/images/icons/icon7.gif)
In my opinion, the 8 is an exceptionaly good 1/4 car. Look at it this way, you have a 1.3L engine running high 14s stock (low 16s in my case) that beats any V6 Mustang or Camoro or anything equal to those cars. On the track they'd be killed.
What does a stock evo or sti run? about the same as the 8 at sea level but they have a turbo. Throw a turbo on an 8 and it's a killer on the track and 1/4.
(Finaly for the first time no one has come in yelling that the 8 isn't a good 1/4 car.)
#41
no greddy i'm assuming but...
Not to mention the suspension has to be changed a lot to make it run well in a quarter mile and that would change the comfort and perofrmance in highway and track use. Its kind of a fork you hit with this car, you can do some stuff to get the track #'s really good or forget about that and set it up for 1/4 mile.
I am pretty much in the middle and will be looking at an adjustable suspension that maybe I can get good performance in both. Also having a good quarter and taking someone in a LT1 or 4.6 from a 25+mph roll on the street are 2 diff things. Even in bolt on form I hang with 350z's, 2006-07 mustang gts or 96-98 Z28's from a roll. With the setup the car has it just doesnt launch well but once its going and you stay in the high revs it keeps up with cars that are faster in the 1/4. That tells me that when I have FI and am making 330 rwhp 275 lbs tq, I will walk away from these cars on the highway or from 25+mph.
I am pretty much in the middle and will be looking at an adjustable suspension that maybe I can get good performance in both. Also having a good quarter and taking someone in a LT1 or 4.6 from a 25+mph roll on the street are 2 diff things. Even in bolt on form I hang with 350z's, 2006-07 mustang gts or 96-98 Z28's from a roll. With the setup the car has it just doesnt launch well but once its going and you stay in the high revs it keeps up with cars that are faster in the 1/4. That tells me that when I have FI and am making 330 rwhp 275 lbs tq, I will walk away from these cars on the highway or from 25+mph.
#42
Rotary , eh?
iTrader: (1)
are you worried about detonation? i read in several of these threads that 300rwhp is about all the tiny 1.3 renesis can take. i really want a maz or a protech but like you, i really like the 8 and plan on keeping it for a bit (other option was an infiniti g37 - very nice) so i'm a bit concerned about pushing its limits - so maybe the greddy is the safer option?
The renesis has proven 330whp on several different kits. Most of those kits are built with room to grown. It's also obvious on those kits that the ignition system gives up the goose at that ~13psi and you blow out the spark after that. With an upgraded ignition system you should be able to toss in a few more PSI before your static compression starts to become the limiting factor. With AI of some form you should be able to make ~400whp easily streetable without porting.
#43
Tailgaters beware
The PTP kit was tested in the quarter in the Car and Driver mag review, they only ran 13.5 with real bad wheel hop but it was at 109 mph, so you can figure the possible quarter with that. I would think with no wheel hop you would probably gain around 2 mph. So I would guess a quarter with around 111 mph. which is in the lower 12's.
#44
Colorado's Fastest RX-8
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I'm not so sure that 1/4 speed is related wiht time. I don't remember the actual speeds but last time I was at the track with my brother (about a year ago) he ran a 13.6 with his vette (all motor) at like 98 mph and some other car ran about the same time at 105 mph. Something like that.
#46
Not as smart as you
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I'm not so sure that 1/4 speed is related wiht time. I don't remember the actual speeds but last time I was at the track with my brother (about a year ago) he ran a 13.6 with his vette (all motor) at like 98 mph and some other car ran about the same time at 105 mph. Something like that.
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