RX-Heven

iTrader: (1)

Gordon, no disrespect, but that statement is simply not true on every point.
Instead of "NONE", you should have said most and there are more issues to it than just losing time in the corners, which for some, is not an issue and others making enough power, time can be made up on the straights. There are reliability issues, cost considerations , limitations on hp/weight ratios and a host of other factors.

Certainly a lower powered car is easier to drive, no disputing that but where is the fun/challenge in just flooring it out of every corner because you can get away with it.

Put a Cobra diff in the rear with 3.55's or thereabouts along with your increase in power, particularly with the broader/flatter torque curve of the 20b, and you will have a more manageable car.

calculon

iTrader: (29)

Howard Coleman comes to mind.

allrotor93

iTrader: (126)

ask fritz, who drives on a track about every weekend. he told me 350whp is about all he wants on a track.

bewtew

iTrader: (7)

i wouldnt want more than 400 on a track but i def need my 750 ponies at the drag strip or at highway race. anything over 550whp on the streets with street tires is just uncontrollable and def a lot for any novice driver. but you know what they say horsepower is addictive and once you learn how to control those ponies you are always going to want more.

rotorooter93fd

iTrader: (6)

i think the 500 hp number for howard is a completely different idea we are talking about braking late into a corner and accelerating out while still keeping the car under control. howard is not going to be spinning the tires at 180 mph he needs the extra power to combat the drag at those speeds.... On another note I wonder what will be comfortable Im planning on using pettit flares and the biggest stickiest rubber I can fit also the streets here in oklahoma are straight and flat nearly everywhere so most of the racing is in a straight line.

bewtew

iTrader: (7)

make sure to get 18 inch wheel.. tires are a lot cheaper.

red_dragon

iTrader: (10)

Back when I was shopping for FDs, I rode in a 480HP T78 FD. The guy was going to give me a killer deal on it, but I soon learned that I definitely couldn't handle that much power. It was just plain scary when the turbo kicked in. For now, 350hp is my goal.

rotorooter93fd

iTrader: (6)

im planning on 18's rear 17's in the front probably 17/40/255 and 18/30/335

RX-Heven

iTrader: (1)

Gordon, I for one have tracked my widebody fc with more than 400 rwhp and was craving more power. Granted this was in a vert which weighs slightly more. I will agree that it would certainly be easier to drive than the same car with 200 more rwhp but I reached the limit of where it was at and wanted more. Then again, I've driven 1100 lb cars with over 300 hp and use my 125 shifter kart for Sunday driving

Off the top of my head, there are two members on this forum who race with over 500 rwhp and have their cars detailed on this forum to one degree or another. Once you get into unlimited type race classes, the competition gets crazy.

Besides the two mentioned, whose usernames escape me, this topic translates to any other similiar 2-door coupe and beyond of which there are many, many roadrace cars out there with mega power...and some of them craving even more. The FD is a great platform but there is nothing special about it to limit yourself to x-amount of power.

The type of track is also important. Take Infineon Raceway for example, that is a handling track where there are no real straights to take advantage of mega-power. In that case, I'll agree with you as more power will not necessarily decrease your times as much as chassis setup, to a po9int of course. To contrast Infineon, just look at Laguna Seca. Now there is a hp (and braking) track where more power will be a big advantage and will surely decrease your times, providing you can keep the car on the track or course


It basically comes down to intended use, reliability, setup, rules, personal abilities and tolerances and most importantly, budget. I think that can be said for any form of racing (or street) and with most any car. How's that for a blanket statement?

bewtew

iTrader: (7)

how fast is it? as fast as a 1000cc crotch rocket if not faster.

patman

iTrader: (3)

My car (FC not FD, but who cares) is WAY faster than my 955cc crotch rocket. That's with 575whp.

It sounds stupid, but I agree with both sides on this one. I'm getting ready to do a rebuild this summer, and I plan on bumping up to 650+ whp. Every time I up the power level, I really like it for a while, then I decide I need more.

On the other hand, I think I had more overall fun in this car when it was 400 or so whp. You don't get the same kick in the pants, but drivability is much better, and losing traction all the time gets annoying after a while. I also have to worry about breaking drivetrain parts, which sucks. I do think you could do a little better in an FD (I plan to switch over when I graduate and have the $) since the suspension is better and you can fit a wider tire, but I still wouldnt want over 600 whp.

rotorooter93fd

iTrader: (6)

so what kind of times are going to be common for the stats i gave. 0-60 mph 0-100 what kinds of quarter mile times are fairly easy?

61620B

This is one of my friends FD who is pretty famous for building exotic rotary cars like a 4 rotor 12A rotary........he is, Mr.koseki or (SCOOT sports)

This FD uses the standard FD REW engine with one of the crazies ports you can combine to make a monster but streetable engine.This FD made 750rwhp on a 2 rotor Semi Peripheral port engine combined with streetport ,a scoot design engine setup also using T51R turbo, but anyways this Rx7 was daily driven with no problem and in this video he was considered as one of the fastest street cars in japan beating skylines and other top japanese cars.The side skirts where added for stability and downforce not picking up the car like the Racing beat from the salt flats if anyone has seen the video.The Rx7 in the video with this power easily did 200+ mph in less than a mile,Mr scoot is also daily driving his 4 rotor FD
that he built and its a really nice piece of engineering.

http://www.youtube.com/watch?v=Gqd3l...2D18B6&index=0

http://www.youtube.com/watch?v=CFUoh...2D18B6&index=2

chohakai

iTrader: (1)

I have to agree with Gordon, it's much more important to have a well balanced and well sorted out track car than squeezing out another 100 peak hp.

Case in point, the FEED rx7 only has about 400whp, with 255 street tires all around, stock weight, however it kicks the *** of the 600+whp skyline on the same section:

http://www.youtube.com/watch?v=ZZ3Ms2JLh_4

I had a 400whp FD at one point, and with a T04S (60-1) turbo as well, the power (and the delivery) was amazing on the track... I'd think anything above that horsepower level with a 2 rotor on the track, one is taking more chance than necessary in terms of longevity, heat, additional drivetrain/brake/tire wear...

vincentrx7

iTrader: (2)

Here is another data point. ...Maybe I need to check my hp again, but everysince I've had my car, 560whp doesn't get out of control in 2nd gear if I'm on decent roads and it isn't too cold outside. My turbo comes on real smooth...much different than a 13B. When I was running 300whp on my stock twins 13b, I had traction problems in 2nd gear. I mainly drive around at about 470whp (10psi). On the track I just turn off the boost controller and run about 6psi (I'm guessing 350-375 whp. I didn't spin in the rain on the track at 6psi. At 560whp, I ran 125mph and not hammering it on the launch (1.9 60')...so I think the hp I think I'm running is pretty acurate.
So, traction hasn't been an issue for me. I have BFG KDW's on 9.5" wheels.

blitzboy

wow I think my 470rwhp is a monster for the street, good enough for my low 10's, just about keep it on the road with that power "Traction control via my right foot" lol, cant imagine what a 20b 600rwhp would feel like!!!!! :eek

fuqua

i would like to drop a 20b into a 1985 vette that has a blown motor does anyone of anyone who has done this kind of swap and can i run this set up old school like side draft webbers to keep the cost down as far stand alone cpu any and all info will be appreciated

rotorooter93fd

iTrader: (6)

ive seen 4th gen vettes with 2jz engines no 20bs though

fuqua

the reason for asking is every seems to say the same thing about the lack of space is the 20b that much bigger then the 13b?

rotorooter93fd

iTrader: (6)

longer because of more irons and an exttra housing. as well as a manifold that sitts higher(i think) and is a few inches longer because of the two extra runners.

bewtew

iTrader: (7)

why would u do that to a vette? why not a ls6? i think is retarded when ppl put engines that dont belong with the car like the ls1 in a rx7..

rotorooter93fd

iTrader: (6)

lets stay on topic. does anyone have any impressive street race videos?

E-Boat

This thread is great. I will start off my 20b with 500 hp.
My first goal was 20b + 42r. Silly me

fuqua

i'm sorry that you think putting a 20b instead of a ls1 in the vette is dumb but you see the ploblem the the 20b gives that its to much power for the fds to manage as for as handling and others issues its because of how wide the vette is and how long is that i feel that it can handle that beast that we know that the 20b can be. you see i'm shooting for around 600hp and i would like to enjoy all 600hp and by the way whats a ls1 compared to my 210 mph (ZR1) nothing will you agree. so dont hate participate once again thank you root

rotorooter93fd

iTrader: (6)

I think a 20b in a vette would be interesting but IMO the vette is the definition of an american muscle car so v8 seems the way to go( Im not saying i dont like your idea though). I do have to say though that getting 600hp is going to be more reliable to though (if you go iron block). but the 20b would be very unique.