1ROTOR2NV

What does it really take. I'm looking for some solid answers here. Obviously its attainable through full race slicks and a gutted race interior with a little less power, but i'm talking about a street car. I have a 94 FD touring edition. Alot of upgrades to the car, but it isnt the right recipe yet, I need more power and possibly a different suspension setup. Anyway this is what I have.

I run about 13psi on 94 octane
pettit ecu upgrade
large m2 i/c
electric i/c fan
crane ignition with new wires
street port
R34 skyline fuel pump
tial blow offs
twin k&n filters
hks sequential boost controller
blitz turbo timer
greddy down pipe and full exhaust (no cat)
lightweight battery
lightweight pulley kit
stainless ic piping, greddy elbow to throttle body
silicon vacuum hose upgrade
kaaz 4.33 lsd
b&m shift kit
eibach springs
nitto 555R 255's in the rear

Please list off what you feel is the next best upgrade for me. I have heard high 400's WHP will do it, but with what suspension and tires. I am planning on a bigger rad, medium sized single turbo ( a spec 500 R), with a power fc, and a large front mount. What tire sizes are you guys pushing into the 10's with? I don't want to get rid of my a/c and I would like to run pump gas the majority of the time. Oh, and also im at about 2500 ft above sea level, how bad is this gonna affect me. Any and all info will help

Busted7

About 480 h/p stiff motor trannie and diff set up. Stock suspension, 10.50 26 et streets on stock wheels. 2740 lb touring with a/c, steering, cruse , and everything else. And most important someone who knows how to get the most out of the car, not over driveing or underdriving. If you cant get 1.50 60 ft times then you will have to have big hp and higher trap speeds to pull into the 10,s.

tom94RX-7

iTrader: (5)

225/50/16 Hoosier drag radials are good light weight tires that I use, they don't have the larger tire diameter like the 26" ET streets, they slowed me down a lot when I had those. Stock turbos with everything else to run 17-18psi I can get a 1.58 best 60' time and 11.42 @ 122 best . I want to reach the 10's but I'm about out of upgrades to make it any faster with the stock twins, I think I can get down to 11.2 when it's not a hot summer night with current setup, try to get better 60' time too.

riceburner1r2001

iTrader: (4)

what it takes is to move to puerto rico and havea big rotary shop build u a motor.

ZAN_TUNING

iTrader: (1)

add a 50 shot but seriously..... add a 50 shot hahaha.

nah, since everyone is afraid of nitrous, just kick the twins to the curb and step up. your upgrade plans will be enough, but will your driving?

people have dipped in the 10's with around 400rwhp... having 480 - 500hp makes it that much easier but it's not neccessary.

MichaelB145

472hp and I haven't did it yet! I'm close (11.2) but I am also 5280 ft above sea level so it makes it much harder!

Viking War Hammer

iTrader: (8)

10's in a street RX7 is easy.............

9's on the other hand.......

OneRotor

iTrader: (3)

Street Car....you'd know everything about those wouldn't you

Busted7

Was that 472 h/p dinoed at that altitude? And 400 h/p in 2700 lb car 10's i doubt it, but less weight and sure!

MichaelB145

yes 472 is corrected at 5280ft.......It's a whole different world up here where you can't breathe!

Viking War Hammer

iTrader: (8)

Man, I know........... I went skiing in Silverthorne awhile back and I thought I was going to have a heart attack. I could bare walk to the bathroom without losing my breath.............. and hitting the bottle, forget about it !

MichaelB145

But at least you can get drunk easy up here! I can't go to sea level and drink though! It takes forever to get drunk and too much money!

Busted7

I lived there in 1979 / 1980 it was a great place to live then, after your skin quit crawling and you got your lungs built up. It would seem to me if you dino 472 h/p at that altitude you should have a 10 in there with a good run!

1ROTOR2NV

What is your guys take on the best intercooler configuration while retaining a/c. Is v-mount still possible, or does everyone go front mount.

MichaelB145

It seems like someone would have to have a trap speed of at least 126 to get into the 10's. What hp were you at until you broke into the 10's? Maybe I'm not shifting fast enough? I could probably shave a little off my 60 ft but probably not much.

Busted7

I went 127 mph with 1.52 60 ft so if you lower the 60 the mile per hour might not need be as high, or if the 60 is slower the trap would need to be higher. But not everything is always the same. But i bet with your h/p if you lower the 60 ft its your best bet to hit 10's.

ErnieT

iTrader: (2)

Back in the day, I went 10.78@128mph on a stock reman, stock ignition, stock primary inj., 1600 sec, small single turbo at about 24psi.

MichaelB145

I agree.....I pulled a 1.55 and with more hp now, I should be able to get a 1.4 something, but I'm afraid to lower the tire pressure too much in order to not break another Inner CV stub.


I think the key for me is to figure out how to get more boost. Once we got to 21.5lbs of boost....the turbo acted like it was done. Anyone know what a GT35/40 turbo whould be good up too? What's it's effieciency range? Anyone know why A-spec tuning disconninued this turbo?

I also have stock ignition with only NGK 9's all the way around but I'm fowling plugs with only 4 runs and about a 100 miles. What should I get? I've heard some say to stay away from the HKS twin power and go MSD......what ign do you guys run?

Busted7

I run the twin power and its fine so far. I also forgot the 472 hp is a corrected number so you dont know the real hp at your altitude. And i imagine the 35 is running out of steam! The air is alot thinner up there. And your plugs should not foul that easy what are your a/f ratios?

Jaime Enriquez

Sorry to be a dick...but...much larger turbo backed with a "tuned" bridgeport is only running you .74 seconds quicker? Why? Too much wheelspin?

ErnieT

iTrader: (2)

Trust me, nobody is more fustrated than me, but driving a 450hp car and driving a 735hp car are different worlds. You run into a new world of problems including major traction issues and launching the car entirely.

tom94RX-7

iTrader: (5)

Get a ign. amp like a Jacobs (what I have, with a FC leading coil), and racing NGK spark plugs or the BR10EIX (I just put those in and like them best), and should see a big improvement at high boost/high rpms, I did, helped alot, like 2 or 3 tenths of a sec. if I remember correctly.

Mas280

I hit 10's with only 428RWHP.

10.9@128mph

tom94RX-7

iTrader: (5)

MichaelB145, I'm curious what is your best trap speed? I wouldn't be suprised if you ran a 10.9 with a better ign. setup with a 1.5 60ft, and super fast shifting of course

tom94RX-7

iTrader: (5)

Nice, 60' and 1/8 numbers?