Rx7phil

I want to know if i can jump from 200hp to 300hp to the flywheel with 1000$ and the car still be reliable? I was thinking about changing the turbo and the fuel injectors. If you guys have better suggestions i would like to know them.

TII: Judgement Day

Not really possible to do safely without with just $1000.

You should invest that whole grand into a piggyback fuel computer or a stand-alone such as Haltech, Wolf3d, or Microtech.

It's really impossible to make a 300-hp Rx-7 as reliable as a 200-hp one.

Xbladr

With that kind of power you will definately be right around the area of when the car really would need a front mount. And an FMIC setup goes for around 500 or more if you dont want to custom fab it up. So it is going to be really difficult to do and if you want it reliably then there really is no way at all to do it in my eyes.

88t2romad

nitrous would be the easiest way, but i dont forsee a way without being detramenatal to reliability

BlaCkPlaGUE

Yea he's right. With all the goods to MAKE 300rwhp your only going to get 270 or so with the TMIC. However, at the flywheel like you asked, I think its possible without a frontmount.

iceblue

Well well well.......

Yes you can do it quit easily you will just need to hunt used parts. As far as a grand I doubt it but anything is possible.

You need two 720cc injectors for your secondary. This will provide fuel for 311HP at 85% duty. If you start passing this duty cycle you run a risk of getting your injectors stuck open.
Next you need a Exhaust ether 3in The way or 2.5 to 3 will do it. A member gonzz has a custom exhaust that will do the job for 200$ give him a PM.
Get a TID.
For 10$ bux get a MBC cant hurt.
Search the for sale section see if you can not pick up a used or even new BNR stage 1 or 2 or even sometimes you can run across like a 300$ T04B. You may or may not need a manifold depending on turbo.
Get a boost gauge!

Up to you but I will suggest it to get a SAFC or other type of fuel computer. Go back a few days in the for sale there was a RE fuel controller for sale maybe pick that one up. Hunt around though.

-TAL-

yup, definately won't make 300 on stock turbo.

270 could be done tho i've heard.

BlaCkPlaGUE

lol, I TOTALLY forgot that the BNR itself is like 600$ hahahha, yea a grand in new parts isn't enough. But like iceblue mentioned its totally possible with used.

therotaryrocket

i'm pretty sure i've seen over 300 horsepower on the factory turbocharger. i say megasquirt computer for fuel and ignition, 3" turbo back, custom ebay fmic, custom mbc, and your probably at 300 or atleast alot faster.

89gtufc3s

Hmm, thats weird....ive heard of people running 720cc secondarys with a bnr stage 1, and those are stated on their site to provide like 300 hp to the wheels...

walken

iTrader: (6)

you could do it with used parts easily.

stand alone $500
hybrid turbo $400
1600cc injectors $100
open intake $free
open gutted stock down pipe $free


$1000 That doesn't include the dyno tune though.

TII: Judgement Day

I wouldn't dare try 300 horses without some type of fuel/engine management though...

I got my HKS F-Con with GCC for $300 used for a S4.

J-Rat

iTrader: (2)

I disagree, I think its very possible. Being as that I have done it.

BlaCkPlaGUE

For fuel managment, wich yes, you INDEED do need, keeping costs low stick with the rtek with the hybrid setup.

iceblue

Yes I agree the Rtek is great and cheep. I have not read how it works under a hybrid setup, but I do know it is tuned for 720s and helps out alot.

It sliped my minde but I came back to mention a fuel pump. At 300HP order a walboro 255 and you can search on here on how to do the fuel pump rewire.

BlaCkPlaGUE

I have seen a few forum members with the hybrid/rtek setup, particularily the stage 1 setup and it has been running good for them.

Now their version of 'good' and REted's version of 'good' may be a completley different thing, heh.. Ted will always recommend a standalone with any turbo that is different with stock, and hes most likely right. But I think the rtek is a good cost solution, and although it will never be the same as a standalone, for a stage 1 bnr I think its a good cost effective choice.

89gtufc3s

^ ok , but is there enough fuel with say an rtek 1.7 and a stage 1 hybrid?

jkimbro

iTrader: (3)

Okay....I've been reading through this thread, 'cause I'm essentially trying to do the same thing as the guy that posted it. BUT, I already have damn near everything mentioned. What is a MBC? I've looked at the FAQ's, but I'm not seeing what that is....and if it's only 10 bucks, and is THAT important, I need to know.

I'm currently running 720's for my secondaries, using SAFC, custom 3" turbo back (all mandrel bent), custom 3" intake that goes directly to the turbo, and an AVC-R boost controller, but I'm still running the stock TMIC. From here.....I'm thinking the next BIG thing I should do is go with a bigger FMIC.

J-Rat

iTrader: (2)

Manual Boost Controller

Sideways7

iTrader: (7)

Yep, go with a front mount and ge the walbro 255 if you dont already have it. Also, the megasquirt fuel contorller is maybe $200 and far superior to the s-afc.

jkimbro

iTrader: (3)

Wow, feel like a tard now.... My AVC-R doesn't seem to be working anyway, so I was planning on going to a MBC anyway.

HHTurboVert

I noticed you asked about flywheel hp, but a lot of the people here are talking about wheel hp. I have seen many people on this site and other sites who can get 270 whp out of the stock turbo w/ no front mount. This is equivalent to about 315-320 at the crank, so I don't agree with the people saying you need to get a hybrid turbo. I say go for a used Stand alone, some injectors, and an intake and exhaust set up. W/ proper tuning you should be able to get 255 whp (about 300 crank hp) relatively easily.
While you might be able to reach the afore mentioned the hp numbers w/ $1000, I don't really think you can make it as reliable as it was stock w/ out throwing out a lot more mulah.
More power from stock parts ---> More wear on stock parts----> More broken stock parts.
Just my two cents

sleeperfc

ssauto 3" turbo back: 200
safc: 175
pair of gsl-se 680s: 75
hybrid from ebay: 250
ebay mbc: 10
walbro from ebay: 100
k&n air filter on a CAI: 50
fcd: 50
vac hose and random vac caps and sheet: 15
50 for 4x bur9eq plugs and a oil change


the tmic an do a 300bhp dyno sheet. but on the road heat soak will drop that number some once it gets hot.

after doing the mods above save up $400 and do a custom fmic
and get two more gsl-se 680s
and you can do 300rwhp daily.