Imports

[misnblu]

Wow, now this thread has me with a true hard on for more.
Thank you for this and any larger images on this R34 as I couldn't find any on the SpeedHunters site. I'd love to have some higher resolutions pics if possible.

 

[The Outlaw]

I couldn't find any desktop sized pictures unfortunately, however I did find a few more pictures that I thought I'd post anyway. Speedhunters may post some desktop sized images at some point in the future...and I'm sure many more will surface once this car starts competing this year.

Neo Project S15

Crazy Impact's S14.5 (I really like this one - I feel inspired to do something like this with a s14 as my future track car 👍 )

 

[Keef]

I'm still waiting to see what the Revolution TA-2 RX7 will be capable of once they get things sorted out. It has a ton of potential, but so far hasn't put up anything too impressive (only 55.9 IIRC).

Not a chance. There's just no way for a 2-wheel drive car to get the tremendous power to the ground and Tsukuba's tight hairpins like the AWD cars, no matter how light it is. It won't be able to compete for the overall record on that track. Possibly a track like Suzuka, but even at Fuji the lsat corner almost requires an AWD exit, and then the huge power they can put down all the way down the straight.

 

[Jay]

Get both of those cars out on the same track as one of these swaps and it'll be no contest. Every time you sit in one of these Miata's and fire it up, it instantly puts a smile on your face. 👍

I'm sure it does but that doesn't justify the price IMO. but as I said, if people are happy to pay it then all the best. I doubt you would get anyone pay that much here.

 

[The Outlaw]

Not a chance. There's just no way for a 2-wheel drive car to get the tremendous power to the ground and Tsukuba's tight hairpins like the AWD cars, no matter how light it is. It won't be able to compete for the overall record on that track. Possibly a track like Suzuka, but even at Fuji the lsat corner almost requires an AWD exit, and then the huge power they can put down all the way down the straight.

"Not a chance" at what? Did you even read what I wrote???

But to respond to what you wrote - I agree that it is VERY difficult for a RWD machine to compete with the highest level unlimited AWD cars at Tsukuba atm. But I am also of the opinion that a superbly (I'm being very modest here lol) set-up RWD machine can match or beat the CURRENT AWD record at Tsukuba (~53.6)....it just takes a very potent recipe to achieve such a result.

The 2100lb Revolution TA-2 RX-7 will likely be capable of coming very close to the current AWD record once they get some more track time and get the thing sorted out a bit better. Also cars like the PanSpeed RX-7 and the Top Fuel S2000 are also RWD cars that are aiming for low 54's or better this year. Then there is also the Scorch S15 which has shown a lot of potential in a short amount of time and will likely continue to improve in the near future.

Martin Ffrench is also building an insane RWD IS300 which will probably be the most extreme time attack car built to date. I've read that they were thinking about throwing a rear mounted turbocharged Busa motor in it of all things The target weight for this car was 900kg, and so far it sounds like they will likely achieve something well under that which is pretty frightening for such a large car.

http://speedhunters.com/archive/2009/03/10/builds-gt-gt-martin-ffrench-2010-time-attack-build.aspx

I think the ASM S2k that achieved a 57.3 with a 305hp NA F20c would have a lot of potential as well if it had a more powerful engine. I think a very ideal set-up would be taking that car and stuffing a normally aspirated Powertec V8 busa motor in there with about 500hp and a shot of NOS (if needed).

I've always felt that the thing that limits a lot of the current RWD cars at Tskubua is the fact that they are relying on such small displacement turbocharged motors to develop their power. The problem with this is that the power curves are generally quite peaky or at the very least hard to control (relying on the turbo to create the power) and relatively small tires that the Japanese time attack cars use. Of course with the AWD cars they have so much traction they can get away with the characteristics of these rather peaky engines. But with a RWD machine, a normally aspirated engine is much better and a NA Busa V8 would be perfect as it makes solid power power in NA form, the powerband is extremely flat and controllable for quick corner exits from slow corners, and it's an EXTREMELY light and compact engine. To bad none of the teams with lots of money haven't taken advantage of such a motor

 

[Keef]

Heck, if they want a light engine compact enough to mount low and aft and with a pretty solid torque curve there's probably kits out there to mount my idea in just about every car they use.

That LS7 looks tiny. Even tinier when they take the AC compressor and alternator off it. Even lighter if they get a race-bred version like what Corvette Racing uses. The biggest challenge this engine poses is getting the transmission to shift less-slowly than it already does.

 

[Joey D]

 

[The Outlaw]

Heck, if they want a light engine compact enough to mount low and aft and with a pretty solid torque curve there's probably kits out there to mount my idea in just about every car they use.

That LS7 looks tiny. Even tinier when they take the AC compressor and alternator off it. Even lighter if they get a race-bred version like what Corvette Racing uses. The biggest challenge this engine poses is getting the transmission to shift less-slowly than it already does.

The LSX is a solid package and relatively light and compact, but the Powertec Busa V8 is still a good 150lbs lighter with a lower CG as well 150lbs has a huge affect on weight distribution in an all out time attack machine (S2k, RX7), which only weighs 1000kg to begin with. Of course the LSX is ultimately capable of more power in NA form, but 500 extremely usable NA horsepower (which the Busa V8 is capable of) still makes for quite a capable 2000lb 1 lap machine Which unfortunately hasn't been attempted YET

In terms of performance, an NA LS7 would be the way to go in a RWD car over a turbocharged inline 4. A LSX weighs about the same as a turbocharged F20C (S2000 motor) or a SR20 (Silvia motor), but you would have the advantage of an extremely tractable, responsive motor which is much easier to control and to maximize corner exit acceleration over a turbocharged 2.0 - 2.5 liter 4 cylinder...especially in the 600-700hp range where a LS7 can still make such power in NA form And a 4 banger must use a rather large turbo to make its power, which kills the driveability especially at tight track like Tsukuba.

As far as getting the engine to shift quicker...there aren't many top time attack cars that use a standard H-pattern transmission anyway. So a Hollinger would mate up nicely to a LS7 in say a RX-7 👍

 

[ND4SPD]

That Revolution RX-7 sure looks a lot like the old RE-Amemiya RX-7 that they run in GT300 in Super GT.

 

[The Outlaw]

That Revolution RX-7 sure looks a lot like the old RE-Amemiya RX-7 that they run in GT300 in Super GT.

Yea it does. It basically is a GT300 car with a bit more power when you get down to it The front and rear space frames are pretty sickening (in a good way) on that car.

 

[Joey D]

Perfect rims

 

[CodeRedR51]

I'm sure it does but that doesn't justify the price IMO. but as I said, if people are happy to pay it then all the best. I doubt you would get anyone pay that much here.

Probably not to have someone assemble the car for them, but we have shipped a few swap kits to Australia. 👍

 

[Slicks]

Keef....

 

[Keef]

Of course the LSX is ultimately capable of more power in NA form, but 500 extremely usable NA horsepower (which the Busa V8 is capable of) still makes for quite a capable 2000lb 1 lap machine Which unfortunately hasn't been attempted YET

I see your point when it comes to the 1 lap thing. Reliability is one of the LS's strong points but that's not nearly as important when you're running limited practice laps, and only have a few shots at a final time. On a track like Tsukuba being extremely light with perfect weight distribution is crucial, and the Powertec is obviously better in those regards. I think that it's not NA instant response makes it a better choice over any turbo engine too.

The torque thing might not be a huge issue either since it revs super high and can be geared really short. I might be worth exploring a low-comp sueprcharged version though lol.

 

[TsukubaTrueno]

Do people actually drive like this? Or is it just bags(highly doubt it)?

EDIT: Yes. Apparently the owner of this car rolled in and out of the even like this. :tup:

 

[nk4e]

do people actually drive like this? Or is it just bags(highly doubt it)?

Edit: Yes. Apparently the owner of this car rolled in and out of the even like this. :d:tup:

<3

 

[ROAD_DOGG33J]

EDIT: Yes. Apparently the owner of this car rolled in and out of the even like this. :tup:

👎

 

[mazdaman]

Yea it does. It basically is a GT300 car with a bit more power when you get down to it The front and rear space frames are pretty sickening (in a good way) on that car.

Is it me or custom intakes are not allowed in these races? Someone help me out.

 

[Joey D]

GRRRRRRRRRRRRRRRRRR.....I'm a Beamer!

 

[Boffin]

I suppose I can let it off for looking cool, but I reckon it doesn't beat the normal E39 font end.

Points for effort though - 👍 - I'd like to see more Bimmers in here.

 

[Perfect Balance]

 

[Horde_R35]

Is it me or custom intakes are not allowed in these races? Someone help me out.

Stock intakes with only a K&N filter (with a tube giving it fresh air) is normally better then any other, specially in a NA! But in a turbo im not really sure about that, and i dont think so, but theyre not dunce! RX7 and there Wankel engines stranges things... maybe it really is better !

 

[Perfect Balance]

Is it me or custom intakes are not allowed in these races? Someone help me out.

I'm guessing part of the hood is designed to direct airflow there. In any case, the car is turbocharged, so unless the intake is literally restricting how quickly the air can get to the turbo, there's not much to do in terms of intake design.

Stock intakes with only a K&N filter (with a tube giving it fresh air) is normally better then any other, specially in a NA!

Right. Are you one of those people who think an intake is just a tube with a filter on the end?

 

[speed junkie]

 

[DKX]

We use a GM Performance LS3, rated at 480hp. Don't think you'll need much more power. Oh, and about the Cobra, we've heard that several times. Except our cars actually handle.

I'd be more happy with about 700 or 800hp.

 

[exigeracer]

That red S13 is tops. I'm not a huge JDM guy, but that's a tasty looking car.

 

[Horde_R35]

Right. Are you one of those people who think an intake is just a tube with a filter on the end?

Im one of those people, who tested several intake systems and to me the best are the stock ones with the changes i mentioned! But in my K20 i use a AEM kai system! All depends one the aspiration of the engine and how many cubic centimeters of air you really need! My testings were always in NAs... never had a turbo to date so... i can only say that to NA engines (normally) it really is the best thing to use! Depends a lot...

 

[Perfect Balance]

Im one of those people, who tested several intake systems and to me the best are the stock ones with the changes i mentioned! But in my K20 i use a AEM kai system! All depends one the aspiration of the engine and how many cubic centimeters of air you really need! My testings were always in NAs... never had a turbo to date so... i can only say that to NA engines (normally) it really is the best thing to use! Depends a lot...

So how about, instead of using "your testings" and saying these things as fact, let's leave those things to engineers and real, factual data.

Stock intake with a K&N filter is not the best thing to use, at least not for power gains.

 

[Horde_R35]

So how about, instead of using "your testings" and saying these things as fact, let's leave those things to engineers and real, factual data.

Stock intake with a K&N filter is not the best thing to use, at least not for power gains.

I have my own opinion. Engineers dont know it all. It looks like you didnt read my post but, ok, if you say so... i could mention several tuned (NA and turbos) that use what i told! It looks like you know it all with your full stops so, lets end this here... pointless to continue with this subject (with you).

 

[Perfect Balance]

Engineers dont know it all.

They're more accurate than your butt dyno.