turbo converted to a supercharger

peewee69 · Post by **peewee69** » Mon Dec 14, 2015 5:57 pm

Hi guys I was wanting to convert a turbo into a supercharger by changing the exhaust side to a pulley side and run it off were my air con belt was. Iv worked out how to gt up to a 16-1 ratio to the turbo so at 1000 engine rpm the turbo will b spinning at 16000 rpm. The turbo is a ihi wl85 vj330402 rhf5-18212w.

Q-1) Iv tride to find max turbo rpm so I don't kill it so if anyone could tell me Thatd b gr8.
Q-2) is the going to work
Q-3) if I attach a b.o.v and set it at a surten psi will that stop it from going any higher in psi
Q-4) also is the ratio OK like is it to high or to low and what psi should it give me on this setup .

Thanks guys hope some1 can help me

evel · Post by **evel** » Mon Dec 14, 2015 8:33 pm

Firstly, it will be easier and cheaper to just buy a supercharger.

Max turbo RPM, well good quality turbos can rev up to like 10's of thousands of RPM's

Will it work, Theoretically I can't see why not, how well is another question.

B.O.V, Read up on how a BOV works because they don't open at a preset pressure, they use engine vacuum and a spring to open. What your thinking of is a wastegate.

Ratio, No idea.

rake · Post by **rake** » Thu Dec 17, 2015 12:03 am

Sorry can't help but I fully support what your doing!!!

mjrstar · Post by **mjrstar** » Fri Dec 18, 2015 7:29 am

Turbo bearings will not take the radial load required to tension the drive belt.

1- probably around 80- 100,000rpm max on that turbo.

2-probably not unless you can uprate the bearings or use a planetary gear to ups speed and take load off the turbine shaft.

3- technically yes you can limit boost by creating a leaky bov but this is not energy efficient. Common for early evos to leak at 18psi preventing further boost increase.

4- theoretical gut feel it may make a bit less than 10 psi depending on belt losses are you sure you have your ratio correct?

peewee69 · Post by **peewee69** » Fri Dec 18, 2015 10:07 pm

I'm pretty sure I got the ratio right bt from ur guys coments il just turbo it since I'm almost there just need a manifold and ecu wat manifold should I get?? Also thanks for the help guys

Teamjelly · Post by **Teamjelly** » Fri Dec 18, 2015 11:25 pm

I think I read somewhere on the Interweb about some guy who used the exhaust gases from the engine to run a turbocharger
Supposedly worked quite well but don't quote me on it,

peewee69 · Post by **peewee69** » Sat Dec 19, 2015 3:27 pm

Ooh never thort of doing that bt I don't got the tools to do that so il have to buy a ready made 1 e.g begi manifold would that fit a ihi vj22?

Teamjelly · Post by **Teamjelly** » Sat Dec 19, 2015 5:18 pm

Begi manifolds - ekkk!
For $5800 we can do a full drive in drive out setup that will make well over twice the stock power, and be totally reliable
Or for $3000 a full supercharger setup - tuned and ready for action
If you're interested we have both turbo and supercharger demo MX5's that you can take for a drive to sample the end result

peewee69 · Post by **peewee69** » Sat Dec 19, 2015 9:35 pm

Oooh they both sound jizzn I would have to save thow. Once I get the money how could I get in contact with u??

peewee69 · Post by **peewee69** » Sat Dec 19, 2015 9:43 pm

Also wat revs do they both kick in at? And is it a cold side??(supercharger) cuz eventually I would lick to do both

peewee69 · Post by **peewee69** » Sun Dec 20, 2015 1:18 am

Also quick Q can you turbo or supercharge with a itb??

Teamjelly · Post by **Teamjelly** » Sun Dec 20, 2015 8:19 am

The supercharger kicks in as soon as you flick the switch on.
And you have boost from idle
The turbo will depend on what size - but I recommend the Td04HL which has full boost by 3000 rpm and usable boost by 2000
You can't run ITB's on a Supercharger setup, and on a turbo ITB's are a waste of time and very difficult to suit
You can PM us here or through our webside WWW.MEGASQUIRTNZ.CO.NZ or directly on e-mail MEGASQUIRT@FARMSIDE.CO.NZ

Timmo · Post by **Timmo** » Thu Jan 21, 2016 10:38 am

Teamjelly wrote:I think I read somewhere on the Interweb about some guy who used the exhaust gases from the engine to run a turbocharger
Supposedly worked quite well but don't quote me on it,

peewee69 · Post by **peewee69** » Fri Mar 11, 2016 2:02 am

Teamjelly quick Q is the supercharger cold side or hot side and if I already have a turbo , injectors , and intercooler withat lower the price and if so how much ?? Turbo is a rbh5 j22

peewee69 · Post by **peewee69** » Fri Mar 11, 2016 2:06 am

I also have a b.o.v

Teamjelly · Post by **Teamjelly** » Fri Mar 11, 2016 3:58 am

The turbo and intercooler won't really help much
most of the cost of installing an intercooler is the piping and labour
The turbo will have to be a Subaru TD type to suit one of our manifolds.
Although we could run an adaptor - but with a TD04L being around $150-200 it's not worth the effort
And we don't run BOV's on most of our kits
They're a waste of time on a properly designed setup.
Flick me an email for more details on
MEGASQUIRT@FARMSIDE.CO.NZ

peewee69 · Post by **peewee69** » Sat Mar 12, 2016 12:36 am

Supercharger ?? Also thanks heaps stil got to save (family and low paying job) so will b a little bit be for I can do it

also wat figurs do you get with your kits. I just got a 1.6L mx5 engine put in with 50thow k's if that helps

peewee69 · Post by **peewee69** » Sat Mar 12, 2016 12:41 am

Getting ahead of my seft bt wat would it cost for a twin turbo set up?

Teamjelly · Post by **Teamjelly** » Sat Mar 12, 2016 1:13 am

Forget a twin turbo setup - you'd have to use tiny little baby turbos in order to get any form of spool
4 cylinders don't lend themselves to twin turbos well
The supercharger setups get around 170hp at the wheels (200 engine hp)
and the turbo kits around 220-270hp at the wheels (260-300 engine hp)
We can do 400hp setups - but you really need a BP 1.8 engine and 6 speed for any form of reliability

peewee69 · Post by **peewee69** » Sat Mar 12, 2016 1:19 am

That sounds awesome

wats the supercharger is it intake side or exhaust side?? Because I would eventually like both an would I benefit from that?? And how much $ wise and HP wise ???

Teamjelly · Post by **Teamjelly** » Sat Mar 12, 2016 1:30 am

The supercharger is hot side
Forget trying to twin charge the little 1600 MX5 engine
It will cost you a pile of money and the results won't reflect the cost

A TD04HL turbo on an 1800 engine will give you instant boost response and around 290-300hp on 20psi - at probably 1/2 the cost of twincharging

For a drive in drive out package you'll be looking at
$3200 for nonintercooled supercharger
$3900 for intercooled supercharger
$5900 for intercooled turbo setup
This is a comprehensive package including everything such as: ECU, turbo, downpipe, HD clutch, driveshaft hoop, dynotuning, intercooler, air filter, injectors etc and of course all labour

peewee69 · Post by **peewee69** » Sat Mar 12, 2016 1:36 am

Sorry for all the Q bt that helps heaps have a gra8 nyt cnt wait to do this to my MX

wil come to you guys and wil talk my lil bro in to it to

peewee69 · Post by **peewee69** » Wed Mar 16, 2016 4:19 pm

Hay teamjelly if I did some internal work to my 1.6 mx5 and turbod it could I gt 300kw at the wheels or more and wat would I need to do ??

Timmo · Post by **Timmo** » Thu Mar 17, 2016 12:56 pm

peewee69 wrote:Sorry for all the Q bt that helps heaps have a gra8 nyt cnt wait to do this to my MX wil come to you guys and wil talk my lil bro in to it to

What?

Teamjelly · Post by **Teamjelly** » Thu Mar 17, 2016 4:04 pm

300kw at the wheels????? - You're obviously taking the piss.

You going to need a HIGH paying job if you want that.
The gearbox won't take it, the engine won't take it and the rear end won't take it.

I think you need to go for a ride in a well sorted turbo MX5 with 180-200kw at the wheels and stop thinking about stupid ideas like twin turboing, twin charging and 500hp 1600cc engines
a NA6 with 200kw at the wheels is a seriously fast car.

turbo converted to a supercharger

turbo converted to a supercharger

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