boostin13b

Everything off the top of my head.

-Stock S4 JDM block, mild street port S5 hardware from what I was told.
-Bare block
-twin scroll removed
-No A/C
-No PS
-Turbo back exhaust 3" HKS style
-Bonez type filter
-Pullys with twin belt mod
-ACT 6 puck
-Racing beat lightweight flywheel
-GTU body TII drivetrain
-Walbro 255
-SAFC
-Ported wastgate
-Ground control coil overs (They Suck)
-TB mod

I'm sure there are more small things, but can't can't think of them off the top of my head. The engine I was told had a small street port, but I have no way of telling. Took a very long time to get up to that point, but it got there. Like I said, I could care less who believes me.

PureSephiroth

um... maybe this is a dumb question, but how the hell did you take that picture? I'm starting to become a skeptic myself...

boostin13b

Tire diameter is almost identical to stock. So the stock speedo is almost dead on. We've had officers at the local road track with guns and Mine was right on the money. I'm not some dumbass just claiming ****. And yes, I have a dyno from almost stock. 8PSI 249 HP to the wheels isn't bad for stock turbo at that PSI.

boostin13b

Digi camera I had in my lap ready to grab and snap when I let out. I took a few pictures, but this was the best shot of the speedo. It was kind of hard to get a decent pic while keeping it on the road and not looking where I was taking the pic.

Madrx7racer

are you in like 6th GEAR???? ur going like 3000RPM which is around 70 something on a regularly geared TII...........you say you got .719 5th gear and a 4.1 final right? ok cool......where did you get all the power to hit 180+. gear HELP you get to higher speeds assuming....ASSUMING you have the power to use the gears......u got lots o' splainin' to doo

boostin13b

Read the rest of the topic, I threw the car in neutral on back down to take the pic. The car was heating up being at that RPM for that long. Especially with the stock turbo not being very efficiant cramming some hot air into the motor.

Madrx7racer

dood.....stock S5 Turbo runs 7.5 psi stock....with open exhaust like mine(2.5" turbo-back it increases to about 10 psi) at 11-12 psi you at looking at HOPEFULLY 250 to the crank.......i have no clue what you have done to get 249 RWHP on a stock turbo. What are your fuel mods? how did u get to 2400 lbs?

boostin13b

There have been plenty of stock turbo's above 250 to the wheels. It really isn't that hard. I was running open wastegate at the time, would spike to 19 psi and hold at around 13 or 14.

I'll take some pics of the car tomorrow and try to post them up if I have time, I have a engine to take apart and throw together so I'll see what I can do.

Madrx7racer

what are your fuel mods? 250 to the crank is right.....not to the wheels tho. Can you explain to me how it spiked to 19psi and what happened after it did? please

boostin13b

Walbro 255, cleaned and balanced 850 secondaries now, running pig rich, SAFC attached to the MAP sensor to adjust for boost.

I'll take a pic of the dyno also to show you, but I was running way lean, actually very scarily lean at the time. Dirty stock secondaries. Very nice power band though.

boostin13b

The turbo used to hold at 19PSI. The stock intercooler had a crack in it, so when it was cold, it would hit 19 then drop down to 13 or so as it would heat up and expand, releasing pressure. I couldn't figure out why I had such low vacume for a while. Then it all came clear after the crack grew.

I've had my T2's wired open holding 22 psi on the stock turbo before, not efficiant in the least, and working the hell out of it, but it can be done. Just don't expect them to last long. I have plenty of turbo's laying around so I could care less, plus, I'm going 60-1 or something around that soon enough.

Madrx7racer

why didn't you post all that earlier whith the rest of your mods? I mean that is important in a mod list. Can you see why I would be skeptical? You claims are kind far out man..........

NZConvertible

Let me introduce you to some simple physics. The amount of power required to increase speed increases to the third power of speed. This means that to double your speed, you need eight times more power, give or take a few hp. This is an irrefutable fact. You can argue until you're blue in the face, but you cannot change this relationship.

So if we assume the stock top speed of an S4 is 140mph, then the engine will be turning at ~6200rpm and making a little bit less than it's peak 180hp @ 6500rpm. So for you to increase your top speed from 140mph to your indicated 180ish, without any aerodynamic or gearing improvements, you'd need to be making ~380hp at ~8000rpm. To get to 200hp you'll need ~530hp [/i]at ~8900rpm[/i]. So even if your engine can make that much power (and from your lack of engine mods I highly doubt it), unless you can make that much power at the revs that match those speeds, you won't get near those speeds on the road.
That's because the US gauge cluster does not have the 180km/h switch in the speedo that the JDM cluster has. That's what tells the ECU when to cut fuel.

Madrx7racer

don't forget tho....he has some gears changed....but in the end you are still right.

Scott 89t2

needle pointing straight down = it's broken....

I bet you $10 you broke it when you put your cool indiglow gauges on......

guess what, I can brake my speedo. rev my engine to 3000 in N and take a pic too.

there is only a very few number of cars that can hit 200... and your stock turbo FC sure as hell isn't one of them.

boostin13b

Wow, a tough guy huh? Lets jump on the band wagon with the rest of these guys and try to look cool. Well I already offered to give someone the video of the dyno just to show that everything works properly and the speedo isn't broken. This is the run when the intercooler finally split and wouldn't hold anymore boost. But it sounds like nobody wants to see any proof, they just want to say "Theretically it shouldn't be able to happen".

It's kind of a pain to get these video's up because it isn't a digital video camera it's an 8mm old camera where you have to get all these adapters and try to rip them on to the computer, I have no clue how because I'm not a computer guy, I have friends that do it for me.

Now if any of you guys know anyone in the denver Area with a digital camera that would want to give it up, I'll be happy to do a pass just to make you guys happy, I'll only allow riders up to 160, because that's when things start to feel a little hairy. And if you want to ride, you will sign a waver saying that if you die, it's not my fault or anything affiliated with me. I hit 160 a couple times a month just for fun so I am feeling pretty comfortable up to that point.

So either you guys find someone to host this video, or find me a digital camera, or something because I have the proof, and don't really care if you believe or not, it's just frustrating listening to the same questions, and some just plain stupid comments.

boostin13b

I don't have any gears changed. Stock T2 tranny and diff.

Madrx7racer

even worse....I must have misread it then......please post the vid.......I want to see this STOCK TII hit 180+ mph

boostin13b

It's not stock, and if you can host it I'll post it. I could E-mail it to you if you want. Otherwise, I have no way to host it.

Madrx7racer

dood they are not stupid comments....they **** valid questions.........we tell you it makes no sense from what you tell us....I have been up to 150 mph......and can tell you the car has a hard time pulling in 5th gear!!!! I did this on a factory rebuilt motor with about 10K miles on it at the time, hitting 11 psi, with the fuel to the right specs(SAFC) on a straight road......I am not talking out of my ***....I am talking from experience.......no way your stock TII hit 180+....ever.......even if you say ur speedo is accurate, which it is not, there is no way....period.

Madrx7racer

ok fine, i'll give you that.....not BONE stock, but not modded enough to justify your claims.....IM me or email me Madrx7racer@aol.com

boostin13b

I was talking about the broken speedo comment. I agree, this does sound far fetched, and as you can see I don't post much on this forum, I'm just a lurker and have been with this for a while, just started a new account last year. But I have done it, and will show you that it can be done.

VietFC

i think that at those type of speeds... the camera would not be that steady. You'd get all kinds of bouncing and vibrations and the pic would be at the very least a little bit fuzzy. This is a fake

Madrx7racer

whatever....i'm off to bed....gotta work tomorrow.

fusion-turbo

Stock turbo hitting 19psi boost spike.... not blowing the engine or damaging the turbo... stock turbo, NO WAY you're making that much boost and having your engine live to tell about it, much less doing it MULTIPLE times.

Bottom line: FC rx7's were not made for such speeds. The vehicle drivetrain is not balanced enough. Ive read that you need some serious upgrading to acheive your 200mph speed without ratling apart your tranny, driveshaft and diff. You know that regardless of rpm that your output shaft and drivshaft are spinning incredibly faster than your rpm as you progress into 5th gear... it escapes me how you could acheive those speeds, and frankly scares me that you would attempt this without and upgraded driveline.

Oh yea... did i mention impossible? period