GohtretFC

What do you guys think a 500HP 2nd Gen Rx-7 would be worth?

Third Owner - Clear Title
1990
Black on Black leather
140k on chassis
30k on engine
New Custom Garrett TO4E turbo - Larger bearings, 360 thrust bearing, interlocking seals, oil restricter plate, .83 hotside, machined compressor housing, upgraded Garrett compressor wheel.
HKS FMIC
HKS aic
HKS sbc
HKS evc
HKS PFC-Fcon
HKS Manifold
HKS BOV
KnightSports FCD
Greddy Turbo Timer
AFX Wideband
Emissions removed
old HKS exhaust
Horsepower Freaks 6 puck sprung clutch with heavy duty pressure plate
Short Shifter
All new Fuel lines and Vacuum lines and caps.
Rotary Performance Fuel Pump
All new gaskets
Bonez brake pads
Autometer Boost gauge
Working PS and AC
Tokico HP Blue's
Eibach Coilover system
Tien camber plates
17x8 wheels - not sure of brand


Alpine headunit
Kicker Comp 6.5"s
Could possibly come with 1000W memphis amp and 2 10" pioneer subs.


Just trying to get an idea and kick around some numbers.

Evil Aviator

I think it is worth about $12,000 minus $1,000 for every 10 HP that it dynos under 500 BHP (or 425 RWHP).

GohtretFC

Lot's of veiws but few opinions...

that sucks.

I meant 500 rwhp. 500 at the wheels not the flywheel.

J-Rat

iTrader: (2)

Cant remember what it cost to build mine..

Evil Aviator

In that case it would be worth a LOT of money. If Ripley's Believe it or Not doesn't bid high enough, and NASA doesn't ****** up such a physics anomaly, then the Catholic Church would probably pay top dollar for a miracle like that.

Slammedblk7

iTrader: (7)

I think that Evil Aviator is trying to say...is

1. A single T04E turbo cant flow to 500rwhp

2. If it contains an FCD..its on the stocker..and certainly cant do that.

So in that case...he cant tell you because with that set up that car won't make 500rwhp.

I dunno?

wackaloo13

iTrader: (3)

im about 15k into my project and it hasnt even been tuned yet .

ask the owner if he can take it to a dyno. kick him in the crotch 1x per hp it is below 500. for some reason 500 seems a bit high for that turbo...

also.. it does nto mention upgraded injectors or some sort of meth injection. forget goign to the dyno, kick him in the nuts about 200 times

GohtretFC

Haha...It isn't a stock TO4E. It has been custom rebuilt and upgraded. I forgot what the new wheel specs are.

It has the f-con which has been tuned but will be retuned with the new setup. The FCD is on there for just in case. It can't realy hurt anything to have it on I guess. The additional injectors are 1680's and are controlled manually.

Snack

I dunno man. FCD is a dead giveaway. Its got no stand alone and with all the tuners here, i don't think 500hp can be done on a stock ecu. Are u buying or selling?

GohtretFC

It has the stock ecu with the HKS f-con piggy back. It's running stock injectors but has the (2) 1680's as additional, that way it could run the stock ecu with the stock injectors and the f-con can be tuned along with the additional injector controller. The FCD is just on there. It doesn't run with the stock afm.

Sorry i'm having a hard time making it clear for some reason right now.

stylEmon

iTrader: (2)

seems like the cheap way to do it to me... i doubt he made 500 with a piggy-back. But lets say he did, it's not done correctly. Plus, chassis dynos can be made to say a lot of things.

Working PS and AC and 500hp dont belong in the same sentance as rotary motor.

I dont remember reading anything about ugraded FPR, or fuel rails, so that's another thing

GohtretFC

Can someone help me understand why it's not possible on a stock ecu with piggy back.

If you have the ability to get enough fuel, and raise the boost high enough, it doesn't seem like an impossibility to me. The stock ecu would control the normal functions and the ignition and would save you the headache of a stand alone. If you are throwing in enough fuel and boost and are within the right afr's it seems like it could work. The turbo might possibly be too small but if it was bigger and you still ran the stock ecu it seems possible. The f-con takes care of some of the other details.

Also would it be possible if you were running c-16?

Maybe someone could clarify things for me. I'm not trying to be arguementative, i'm really trying to learn and besides this forum I don't have any rotary guys to ask or talk to about it.

Icemark

With that set up I doubt he is hitting 350RWHP... well alone 500. Sounds like stock internals with a medium sized and tweaked turbo- that I doubt is hitting 15 psi.

The stock ECU would not be capable of supporting the proper fuel mix for that set up... all it could be used for is timing... and even then it wouldn't retard correctly for high boost situations.

soloracer951

Custom T04E Turbo making 500 RWHP? With a 0.83 hotside? *LOL* .......sounds like internet make believe bench racing to impress amateurs..........otherwise known as BS in the real world. Evil Aviator is right on the money. Unless of course this turbo was bolted onto something other than a 13b - like maybe an LS7 or Viper V10.

phoenix7

$2 and a jawbreaker:




$3 if you got a dynosheet

soloracer951

You can only raise boost until it gets out of the efficieny range of the turbo and starts heating the air it breathes. Don't think of turbo's as some magical device that you can raise boost higher and higher and still make more power. They have limits - regardless of what fuel you use. All the higher octane fuels do is prevent the engine from grenading.

soloracer951

$4 if the dynosheet isn't drawn in crayon.

GohtretFC

It's .84 sorry

No, it's not an internet joke. I guess it being on a rotary does change the power it will make alot. The turbo oil seals blew and it had to be rebuilt. In the process it's having it's guts upgraded and being built much better. It was a t4 flange, 50 trim(I think) with a .84 exhaust which is a rather crappy combination. So the compressor wheel is getting yanked out and the housing is getting machined and a new wheel is going in. The bearing housing or whatever is being machined also and larger bearings are going in and adding the 360 degree thrust bearing. The oil seals are being upgraded to interlocking seals, and an oil restrictor is being put in. The exhaust wheel will probably be slightly clipped and then the whole thing will be triple balanced and blue printed.

soloracer951

Just to give you a shot of reality - I know a very respected guy with a fully bridge ported 13b REW, T51 SPL, Trust Supra intercooler, 4" exhaust, twin fuel pumps, custom fuel system, Power FC (FD engine) and he should crack 500 rwhp. Another friend has a street ported 13B HKS front mount, larger injectors, larger fuel pump, Wolf 3D, GT35R, etc. and he made 380 rwhp. Both of these cars are modified more than the car you are looking at from the description you gave.

P.S. The reason you are taking so much flak is for the unsubstantiated and highly improbably horsepower claims that someone is feeding you. If you had posted the info without the BS power numbers you would have gotten a far more positive response. I'm sure everyone here is just tired of all the "Yo, dude I got's a BOV and an intake that gives me 200 rwhp" kind of crap. It's nothing personal and I wouldn't take it that way if I were you.

Slammedblk7

iTrader: (7)

I dyno'd 480rwhp back in 2005.

Trust me, it took a lot more than what you have listed.

At 500rwhp, you're VERY close to needing another fuel pump or a meth injection kit.

A much larger turbo is needed.

Larger diameter exhaust piping.

Aftermarket FPR

Aftermarket turbo manifold..

....The list goes on.

soloracer951

Do you understand turbo's at all? Most of the crap you just spouted is almost meaningless - other than that it's a 50 trim with a .84 exhaust housing. So what wheel is replacing it? And then how do you expect to squeeze all that air going into the engine to support 500 rwhp out the tiny 0.84 exhaust housing? That turbo will not flow enough to support the HP claims period. Bearing size/type, interlocking seals, etc. mean jack **** to power numbers. So yes it is an internet joke. Of course it being on a rotary makes a difference - the turbo will perform according to the volumetric efficiency of the engine. Rotary engines like large turbo's with big exhaust housings to make big power. Ever wonder why the big power RX7's have turbo's the size of watermelons? I have an engine with 1 more rotor and one hell of a lot bigger turbo that made over 500 rwhp. There is no way your friends car will do the same with 2/3's the engine and 1/2 the turbo.

GohtretFC

Okay the post should have been called
"What kind of numbers should I be making with this"

Sorry for my ignorance and dumbassness. No I am not one of those dumbasses who believes that a NOS sticker gives you 50HP and a CAI gives you 35% more hp.

I'm an 18 yr old kid who lives on his own works hard and is trying to do the best I can with what I can. This has been my project for a number of months now which has forced me to dd my R6 in 30 degree weather. I have spent a lot more money and time on this then I probably should have. I have taken the time to do all of the little detailed things. Everytime I think my car is almost done something else comes up. In this case we started the car for the first time and oil shot straight up out of the turbo compressor outlet and covered my car. Thanks to a blown turbo which was supposed to be good. So I sent it off to be rebuilt and upgraded to be able to produce 500hp supposedly but not on a rotary I guess.

Okay I get it i'm not going to get that from this setup. Thank you all for clarifying that. I was not fully expecting that anyways so it's no big deal. Basically I'm trying to get some helpful opinions so that I can finish this car before the snow really starts. I'd say i've done just fine up till this point since i've done all the work myself with some help. I'm working with high HP mustang guys so they don't fully comprehend the differences between mine and theirs.

And it's an HKS turbo manifold, aeromotive fpr, and I can go 3" exhaust if I want. Also I'm sorry I don't know the exact specs on what is being done to the turbo, I'm not the one building it. And no i'm not doing this project the cheapest way possible, there is alot more that i've been through and done to this car than what I mentioned. I'm sure some of you have been through something similiar maybe.

Thank you all for your helpful information though. I guess I'll take the $2 and the jawbreaker now.

soloracer951

A realistic price for expected resale of this car would be in the $6000-$8000 range and he would have to find the right buyer - someone who is convinced that it makes 500 rwhp because he doesn't know any better.

I bought this car for $10,000

https://www.rx7club.com/forum/showth...ghlight=destin

And there is no way that the car in this thread is anywhere near as valuable.

GohtretFC

I'd say you got one hell of a deal on that car. Congratulations!

I wish I could have just found something like that instead of messing with this.

soloracer951

Much better approach that is bound to get you more help and less butt chewing.

You can't directly equate a V8 engine/turbo combination with a rotary engine running the same turbo. So why the question about what the car is worth since it is apparent that you already own it? Are you selling it?