What is the cheapest way to make around 300whp?

[T.I.]

Hi. I am curious about the cheapest way to make around 300whp in a 260z 2+2?(Please list the price if possible)

 

Thank you.

[Zedman240®]

Depends what engine you want to run.. If you want to modify the original L26/28 to get that power would cost a fortune. the cheapest way is to drop in a RB25DET for about $5K....just a guess tho sorry!

[Glen]

what about getting the power that you have demitri, 155rwkw out of a carby motor. I have a ceased l28 which will hopefully be the crank bearing at best as the previous guy ran it out of oil. Anyway im going to rebuild it but i dont want fuel inj setup. What is the most you can get of a l28 with cam, ported, extractors <----(already have) and some original 240 carbs hanging off.

 

 

[Add]

Depends on where u live. There was a 280ZX with a L28 Turbo on ebay yesterday for $4,000. I would have bought it but it was in QLD. 

[C.A.R.]

Hi. I am curious about the cheapest way to make around 300whp in a 260z 2+2?(Please list the price if possible)

 

Thank you.

 

Oh dear...

May I suggest you do some more research before asking questions like that.

[nat0_240_chevZ]

get a vh45 de front cut, 340crank hp stock which should give you about the figure youre after. cost me under 2k delivered from qld to adel, and then to put it in about that again. but nearly all work done by myself and a mate. so its a realistic figure.

 

if you dont plan to do it yourself allow about 3-5k, no matter which way you go!!!

 

nato

 

have a look @ this 

 

 

[T.I.]

Thanks for the reply. They're really useful.

 

So, swaping an engine is easier and cheaper to get power than using the stock L26 or L28. right?

 

(Your Z is nice, Nato)

[nat0_240_chevZ]

yep yep and thanks, wit til its painted, going all out, as a good mate is a killer painter, ill get him to do final prep, all for favous, i swap your engine u paint my car!!

lovin it!

[24OZ]

i'd have a look on hybridz to see what guys are doing to the L28's

if it were me and i was looking for a cheap and easy way of achieving around that hp i would turbo an L28 on dedicated LPG(high compression ,use a simple boost referenced ignition retard system,a GRA gas carb instead of fuel injection,use a garrett GT3076 i you can afford it or a T3/4 if you can't,port the head/plenum,ex manifold from a std turbo L28)

i have a Boss 302 and an RB30ET in my 240z's,once you start talking about engine transplants you can spend a lot of money just getting the engine fitted,and a heap more if there is electronics involved....don't ask me how i know this :-\

paul

[RBZ 260]

if you can do work yourself cheapest is conversion. sorry guys been there done that.

 

BUT if u got to pay someone to do it than it will be bit more expensive. than again ive seen a l28 rebuild fetch 4.5k and we not talking turbos with it.a basic rebuild it wil still cost close to 2k if u paying someone.

 

to me its same. it will cost similar,but if you go for newer engine spare parts is easier and aftermarket support is greater and cheaper. and u can have more potential afterwards.

 

ie stock rb20det has 160kw at the flywheel. with small cheap addons that figure can jump to 220kw at the wheels. 220 at the wheels aint bad in a light car.

 

 

my stock runing boost rb20det 260z 2+2 kept up to a moded late model S15. the guy was so shattered that this retro dato was stuck on is butt and couldnt shake it off. hehehe wait till i wind the wick up to 1bar and get the ecu remaped.

 

cost of rb20det conversion

 

front cut with bigger turbo $1300

extra parts for the engine  $350 (includes gaskets, new water pump,oil pick up,oil filter and timing belt)

exhaust cost me $500 (full stainless 3" with dump pipe with muffler,resonator and cat)

Intercooler and piping $500

fuel pumps surge tanks $300

2 days fitting it all in hardest being cutting the sump and rotating it around. other option buy a 200zr sump at $580 new from nissan

 

total cost to me $2950 as i did it all my self so no install charge

 

did ask around to see what people charge.

 

to just drop the engine in and mount it $400 plus parts parts being the sump and pickup etc.....

 

wiring is fairly simple if using stock ec and dont see why would you go aftermarket unless going for 450hp or more but wiring of the factory ecu was 500 to 850.

 

you have to do your homework and find best prices around for the job. also you have to trust the guys doing the job right and thats the problem i have I DONT and prob never will.

 

than you also have to contend with their crap. "you need this and that" you have to realize they are a business and they will try to make more money out of you for unecessary bits.

 

either way for a decent rebuild you prob looking close to 4k maybe more the carbies alone can fetch over 1k.

 

a rb20 conversion shouldnt cost much more than that amount but you will have a more powerfull more reliable and newer engine. people wouldnt be doing them if wasnt a good option.

 

[24OZ]

agree that doing it yourself is a big saving,if you can do it right....remember it has to pass scrutiny by licensing authorities

admittedly newer design motors make more hp standard,but you will be getting an import secondhand motor ,that itself is not without risk,if you had to rebuild it it would likely cost more than an L28 to do so

the conversion craze is the reason that a good/rebuilt L28 is likely to come up cheap,and it already fits from fan to tailshaft

to make the most out of newer RB's you need an aftermarket engine management system,a better turbo,bigger injectors etc,etc

don't underestimate the cost of brackets,tailshaft,pipework,wiring,hoses,radiator,mounts,exhaust,speedo cable,clutch conversion,etc....it can quickly add up

with the L28 you are already 1/2 way there

if time and money are no object go for the conversion,if you want a quick street Z,there is a cheaper and easier optionabove is only my opinion,however i have gone the conversion route many times

 

[Glen]

im staying with the L series, i'm only after 130-150rwkw's and i have always liked a NA motor with a big lumpy cam, just something about 'em

[zr240]

The cheapest way to make 300whp is to buy a zed thats got 300whp:)

 

Im not being a smart ass it really is cheaper to buy one that someone else has done all the hard work on and spent all the cash getting it RW etc.

 

Ash

[gav240z]

The cheapest way to make 300whp is to buy a zed thats got 300whp:)

 

Im not being a smart ass it really is cheaper to buy one that someone else has done all the hard work on and spent all the cash getting it RW etc.

 

Ash

 

I was going to say the same thing funnily enough. Not too long ago there was a 260z 2+2 on Carsales.com.au or something equivalent it had an Rb30 turbo in it. There was also a Turbo L28 260z 2+2 a little while ago aswell. So cars with conversions and money spent do come up from time to time.

 

It may pay to wait a while until the right car comes along. That being said the "cheapest" isn't always the best way. When it comes to building engines 300 cheap Horse Power is very different to 300 reliable HP.

 

I'd say one of the most attractive routes would be to buy an SR20 or RB20 and slot it into a 260z 2+2. That will get you your goal relatively easily, but it won't be cheap. It never is.

[620Z]

Ash and Gav are exactly right. The cheapest and fastest way to get a Zed with those specs it to buy one. Even if you have to wait 3 months for one to come on the market it will still be quicker than building one. Better yet find one you like and make an offer. You will be surprised how many people hang onto their cars when it could be up for sale at the right price. everything has a price even my car if I got the right offer!! Ha

[RBZ 260]

yeah prob true get one thats been done.

there is currently one on ebay now 260z with rb20det allready in it. buy that and transfer the engine over. sell the rest and u prob come pretty close to cheap. 

 

just dont kidd yourself thinking you need this and that. get it runing standard than start modding. sometime the elaborate ecu's massive injectors this and that ... are just plain waste of time and money for the purpose you will use the car for.

 

RB ecu's can easily be reprogrammed to accomodate any aftermarket change. so what the point wasting 2k on a substandard ecu that wont be legal anyway.factory stuff has big $$$ spent in development. lot more than some small shed in suburbia.

 

you find all the dirty stuff that goes around these workshops when you get to know how they operate and tricks they use. expecialy if u use to work for one 

 

[T.I.]

Thanks guys for all the information. Really useful.

 

(To rbz 260: Nice Z. You must've scared that s15.)

 

 

[24OZ]

http://www.viczcar.com/forum/index.php/topic,2159.0.html

$700 and you are 1/2 way there

[T.I.]

Will LS1 be a better choice to swap or SR20DET?

[RBZ 260]

do you own a petrol station and get free fuel go for the LS1. but if u still want to save the planet and destroy a ls1 powered commodore go for sr20. be lot quicker on the twisty stuff as it weighs half the ls1.

[T.I.]

Good point. Thanks rbz 260.

 

 

[24OZ]

do you own a petrol station and get free fuel go for the LS1. but if u still want to save the planet and destroy a ls1 powered commodore go for sr20. be lot quicker on the twisty stuff as it weighs half the ls1.

heard of lpg ...cheap,clean,engine lasts longer,better than Ultra octane rating,run more boost/compression without pinging,don't need expensive injectors or fuel pump.....just don't run out of gas

[T.I.]

So what are the bads of running on lpg?

[24OZ]

extra plumbing

heavy 'fuel tank' that eats up a lot of space

reduced range of driving on dedicated LPG (not dual fuel)

....other than that it's all upside

[RBZ 260]

backfires and risk of catching fire expecialy when pushed.

 

power loss unless going for injected type system. which also reduces the risk of backfires etc..... cost more

 

you can get spare wheel mounted tanks but again its small and you still have to fit the spare. you could remove the original tank and install low profile lpg tanks. again having a thirsty v8 youll have frequent gas refils.

 

i used to work for a company for 5 year that made LPG gear for cars know fair bit of ins and outs.

 

rumor is that lpg has more octane which is true. but to get advantage of that engine has to be made for dedicated lpg only. with all relevant mods.

 

i owned 4 lpg powered cars still got one. even a dual fuel v8. power loss is still greater than the 15c you may save per liter. its almost false economy.

 

lpg is good for people to get from a to b and not worried about the power loss. ie taxis and buses and to save that extra 15c.