im looking to get a 20b upgrade and later get a single turbo, probably gt35/40 or t-88.. its gonna be street ported but i wanna know how many horses it could make? it would be my daily driver.. any thoughts... could it make more than 600 rwhp on premium unleaded? wat about race gas and high psi? how much psi you think i could take it to after everything is upgraded? thoughts???

 

ok that's all fine and dandy, but are you really willing to shovel over about $35,000 for the install? A nicely built 13b just sounds like a better idea don't you think? Don't you think everyone would be goin' 20B if it wasn't so expensive? Don't get me wrong the 20b is a remarkable engine and it probably would be worth it but it's up to you. IMO a built 13b is easier, cheaper, and better.

 

and how much money you have? its gonna cost a **** load...20b, turbo, all fuel upgrades...what you do for a living? i should check up on looking into it for college courses good luck man. i think you could hit 600 rwhp possibly on premium but i wouldn't suggest it, race gas yes. you could get it tuned good then you could run a mix 15 psi on 93 octane (someone correct me if im wrong). put up pics during process. good luck

-brian

 

damn those would be some crazy fuel requirement for that guy. Like all 1600's

 

the problem w/streetable 13B's is that their power is limited to 500.. thats not gonna cut it against the big boys (1000 hp supras) i just wanna kick those guys' asses... im buying a car w/ 3-rotors already installed... hes selling it for 40,000... kids spend 40,000 dollars on hummers or audis... why not spend it on a 3-rotor rx7??

i figure an extra 10 is gonna get me the necessary upgrades for a single turbo? any ideas on how much power i could make with that kind of setup? could it be streetable? i basically just wanna kick any other street cars ***.. from wat ive heard a 550 hp rx7 is like a 900 hp supra. so w/600 or maybe 700 i should probably be able to kick any street car's ***.. all that for (hopefully) the price of a new Z06... any thoughts???

 

You should spend your money on a sequential gearbox and good transmission to hook up off the line vs. worrying about big HP numbers and stick with a 13B for a much cheaper overall project. Otherwise I'd say go with a V8 and the 7 body stripped out to reduce weight.

The other thing is if you exceed 700HP on a 20B plan on adding extra dowel pins, nitriding the e-shaft or having it hardened so it doesn't break, lightening the rotors, etc, etc plus spending a huge amount on properly tuning the ecu...and you're running race gas only at this point.

The problem with having a goal of kicking everyone elses' butts is that there are V8's/V10's lurking around with well over 1KHP that will easily remove you from being a contender so my suggestion is that you build the car to make you happy and for a specific type of application (drag, road race, auto-x, etc) and don't worry about everyone else.

 

a, thats good advice, theres ALWAYS someone faster than you, and
b. a 20b daily driver is not very pracitcal, it will get about 16mpg tops on the freeway, plan on 10 if its modded

mike

 

Heh, my REPU got 10 yesterday. 20 gallon tank, 200 miles, heavy foot, averaging 70-80, tail-gate up. Eep!

 

There is a 20B FD here in NZ making 540HP ATW at 13psi, pretty lazy realy. 600 no worries.

I say go with it.

as for an everyday driver. I drive my 5 speed 20B JC Cosmo almost everyday. No its not cheap to run, but if you can afford to pay US$40K for a ******* car I can't see running expences being an issue considering my car only owes me NZ$25K including a full rebuild, 5 speed conversion, 19" wheels etc and I only earn NZ$45K a year and your gas is cheaper than ours.

go for it dude.

And again, if you guys are so hard up and realy want a 20B conversion but don't have the cash, commision someone in NZ to do the conversion for you, halve your costs

 

if i have someone do it for me in new zealand what about shipping back and forth? wont that make up for the money i save? btw can you get me some other stats on that 540 hp rx7, like how much it cost and what type of turbo hes running?

 

I would bet that for $25000US you could ship a car to NZ, covert it and ship it back to the US.
or better still, have the engine built inNZ, all manifolds etc, modify the sub frame and parts required, then have them all sent to the US and have it installed there.
Install couldn't cost more than a couple of $1000US could it?

have priced it all out befor, the biggest savings is in the fact that when you guys pay up to US$120 an hour for labour, we only pay NZ$65 an hour so that is essentialy around a 1/4 the price. and the majority of this conversion is labour. Also thinks like FRIC kits, etc, in NZ it is more common tohave custom made at a cheaper price than to buy expensive bolt on kits that japanese and Americans love so much

The car in NZ runs Microtech LTX-12, T45 Turbo (don't know specs) boshe in tank pump larger secondary injectors etc. Cost? not exactly sure but my parts list for the pump, clutch turbo ecu etc, then going by what I payed for my full rebuild of my 20B etc, This would be under $20K NZ.

 

Hey do those guys in NZ have a web site? Also, is the subframe a modified stock version or a custom made one (like Rx7Specialties makes for Pettit)?

 

at the moment it is a modified factory but my brother said if they did it again they would make a custome one to replicate what they ahve done.

no web site sorry. I will see if I can get pics though.

 

Hooo .. pics please.

 

You can make a car as powerful as you want it. It all depends on the owners definition of "streetable".

I have a hard time believing you will EVER get more than 500 rwhp from a 20B with a t04 sized exhaust housing, I don't care how big the compressor is. The 35/40 is even SMALLER on the exhaust side, not a good choice. t51r-kai would be a decent sized turbo for a 20b, but there are other's that are better. Do some reasearch. Buy a book. Don't let other people make your decisions.

 

600+ HP for a street car is not practical.. I don't care who drives it... you're a rocket.. not safe for you or those around you.

 

Good thing it's not up to you what people build. 600 rwhp cars have been on the streets since the 60s. Several "Street" cars (thinking Corvette L88, Henessey Viper, Mclaren F1) have come from the factory with that much horsepower...

 

The shop who did a lot of the work on my project lets me drive their '96 camero w/ an estimated 900HP when I want, and get to be their driver for shows... it's not a big deal and is very practical as long as you don't put your foot in it all the time. Drive it nice and it's easy to drive but the fun in having power is hitting the gas and hitting 90+ in a couple seconds

Practicality is a function of your use of the product not what it's necessarily capable of.

I for one, think a Geo is completely impractible as someone t-boneing you with a bicycle will kill you and walk away from the scene

 

Hi guys. I need some advice...I have stock twins, stock motor, and cat making 330 whp. I'm ready to move on and make more power but want to keep it drivable and fun everyday. I also want to keep the twin sequential set up. How much power can I make while keeping the sequential twins? Also which turbo set up do you all recommend? Lastly, what's the break down cost of a 20b? Thanks a lot everyone.

 

I've also been looking into the break down costs of a 20B, just do a search for some of the stuff you will need and start adding it up. Even if you only get prices on the 'big' items i.e. engine, subframe, etc, it adds up quick.

If you have to pay for labor, the install the cost is enormous. I'm going to do it myself and I still have to pinch pennies.