Danishrx8

How fast can a RX-8 go 0-60 with a greddy turbo kit on?

And what about a 1/4 mile?


Anybody has the times from there modified RX-8.

baseballgenius80

For reference and comparison....here is what I got stock. Note: my car did have some added weight in the trunk with subs and sub box. This has since been taken care of and I need to rerun for more accurate times.

1/4 mile: 16.1 sec @ 89 mph top speed

Vasichko

iTrader: (1)

I dont know how much boost or mods done, but I have seen some videos on YouTube of Greddy RX8s doing 13.1 and 13.6.

Rocketman1976

Thats pretty sad, and its because these cars really make like 210 flywheel hp stock, which I dyno'd stock at 170 rwhp, after some upgrades, listed under here I make 187 rwhp without the underdrive pulley and I ran a 15.4 92.5 mph, but that is with a low rpm start, could probably get 14.7-14.8 if it didnt wheel hop so bad. I saw the black rx-8 with the greddy on you tube at 13.1.
Rx-8 minus turbo = granny's caddy given you a spankin

legendkurado

anyone have a link to the 13.1? i've serached the tube for it already

Rocketman1976

He might have removed them, I cant find them anymore either. He used to have like 5 videos, dyno's and drag's, he ran 13.1's-13.9's, 13.9 I think he said he missed a gear. He made I believe 275 rwhp.

mysql101

thats adrian-1, who posted a dyno sheet of 265 whp. we now have people who have done 290-310 on the greddy kit, and of course the bigger kits with 330+

legendkurado

installing my turbo soon so was very curious what 1/4 times were expected

chickenwafer

iTrader: (9)

you will probalby in the low 13's or very high 12's depending on your suspension, clutch, tires, and other mods you have, and obviously how good of a dragger you are. People have pushed STOCK 8's to 14.6's, and run high 13's on a 55-shot of nitrous.

legendkurado

ty for hte response! lets hope i'll be able to hit those times

Rocketman1976

I would love to know what people do to run a 14.6 with a stock Rx-8? Must be running 100 octane and on a cold day. Hot and muggy 91 degrees with 93 on a florida night you cant get the car even close to that.

Mugatu

iTrader: (1)

Polak did better than a 14.6 at the track with a stock 8. search his thread.

nate340

i ran a 14.8 with my sub in the trunk, first time at the track as well.

Rocketman1976

I did read what Polak did to get his time and I appreciate the referral to his thread.

He launched at 8000 and just rode the clutch out, he said after that he could smell his clutch so that was his last run. I am going to go to the track one more time and give that a try to see the results. I'm glad its capable of running good times, I guess you just have to know how to extract it out of this car. My first rotary and high revver so I was just trying to launch like my 5.0 mustang or my 65 nova and it don't work so well on a car that's setup more like a motorcycle.
When I had my Honda CBR 600 I used to launch just like Polak did to get his 14.598.
I dyno'd with 19 more hp than stock with my upgrades, so maybe I can get close to 14.0-14.2

JasonW

^^ I'll wish you the best of luck on that. but your hopes are shooting a little high. with sr motorsports intake, sr underdrive pulleys, and RP highflow midpipe, best i pulled was 14.63. thats with a 2.16 60' time. which brings the question, whats the best 60' times anyones gotten out of an N/A 8? i always spin like crazy or wheel hop badly. bad enough one time it kicked my ABS light and my park brake light on. they wouldn't go off until i pulled the battery cable.

GrantedRenesis

Well all wish we would've done our homework before we bought one...

Rocketman1976

Well I have raced many cars on the street from a roll, like a brand new with the temp tag Acura TL-S which runs a 14.2 in stock form, I pulled on him from a 40 mph roll, and I raced a charger hemi from a roll and he pulled me but not all that bad, they run a 13.8, so I know my car is capable of around a 14.2 but everything depends on a good launch. If you ran a 14.6 with terrible wheel hop, you would think you could get 14.0-14.3 with a perfect launch. I am going to the track this thursday and I will try Polak's method of a 8000 rpm clutch ride run and I will let you guys know the results.

And I am glad I didnt reasearch my car more before I bought it. If I did I would have turned myself away from it because of the quarter mile times, then I would have missed out on on of the best driving, handling and looking cars I've ever owned, and I've owned 19 cars and a Honda CBR crotch rocket in my 14 years of driving. This is the first car that I've owned that I want to pay it off and keep it... and put a turbo on it of course. Looking at ordering PTP in a week!

JasonW

that 14.6 was with a perfect launch. it was the rest of 'em that spun and wheel hop'd so badly. and as for the 8k clutch ride, i'm out to have fun, not destroy my car. and i knew the 8 wasn't fast, but i'd still buy it again if given the choice.

tajabaho1

i got mine to 2seconds, but then again, I was in a jet..........what was the question?

YaXMaNGTO

lol... alright, so I've never seen anybody post a 12 second slip, or even say they made a 12 second pass with any level of modding on a Renesis.
The 20b guys have proof of putting down some impressive passes, but not anybody with a 13b-msp. I'm not talking about G-tech runs either.

I gotta throw this out there... with all the cash you guys pay for very elaborate and expensive turbo setups, how in the hell can you NOT expect the manufacturers of these kits to give some REAL 1/4 mile times to back up their products. Don't you think it's ridiculous? Ya'll are some VERY trusting people. You should tell them to crumple up the nearly worthless dyno sheets and go prove what they sell.

mac11

iTrader: (1)

you must be new here.


for 99% of us, if we gave a rats *** about 400m times we would have bought a brick on wheels with an LS block.

tajabaho1

I actually do give a crap about the 1/4 mile time, and I bought an rx8, why? because I was drunk and I don't know the spec or even the gas milage of the car I just bought, FYI, I don't even know how I wounded up in this forum

all that aside, I have 10 speeding tickets in this car, so how fast do you guys want?

Lasse wankel

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

Rocketman1976

Not too many people take their rx-8 to the 1/4 mile they mostly goto the track. But one guy brought his there a lot and posted videos on youtube, he has the lower end greddy making 271 rwhp, he shows a dyno on one video then in the 1/4 mile he ran a 13.10, shows his slip too. Well it doesn't take a whole lot of intelligence to predict that if he got a 13.10 with 271 then the kit making 325-341 rwhp will be well into the 12's.

Also 1/4 mile depends on very many circumastances, driver, atmosphere, traction, how you launch, and this car isnt really designed to run quarter mile times with the very high rev and most hp being high in the revs. It's designed to run on a track. You would have to change a lot to make it into a 1/4 mile car, but then it will probably have to handle like a straightline car like the mustang... no thanks.

My friend bought a new 2007 Mustang GT and he can't believe how good it handles compared to his 93 5.0, I drove it a few times and it has good acceleration but handling... it doesn't feel too far off from my Expedition... You feel the whole car lean when you go around a turn even if your not going very fast. It may be better than a 93 5.0 but I had a 90 5.0 and thats not saying much if thats your comparison. Not to mention the brakes... They are almost 3/4's of inch smaller than the RX-8's but it weighs 500 lbs more than the RX-8 how great is that?

tajabaho1

^ track ftw, that **** is fun, quarter mile is retarded because I had to wait for hours to drive 15 seconds.......oh god