Injectors

[UK_MRV6]

If I put a supercharger on my car will I have to change the injectors or will standard injectors be up to the job? Also consider I will be running the car with a greddy e-manage so in theory I should be able to adjust the fueling by +/-20%.

[terrastrife]

guessing you did a 3vz drop, there is no readily available supercharger for the 3vz.
if yore going to be pushing 250bhp via other means (P&P etc) then get ready to find new injectors because the stock ones are only 200cc and you will need something bigger.

1mz: supercharger kit will go right in, no need for much else, maybe room constraintsinside the bay and some pipes.

[UK_MRV6]

It is the 1mz drop that I have done. Am looking at a supercharger and need to know if the fuelling side of things is going to be ok to accomodate it.

[terrastrife]

you should be ok with the 1mz injectors (220cc i think) for lowish boost, 9psi or so at most. ppl around here with the trd s/c use well, the trd s/c kit, which doesnt include higher rated injectors, so there shouldnt be a problem =)

[UK_MRV6]

Nice one mate, thanks very much. I will only be running around 5 psi when I get the supercharger until I can afford to change the internals. I've heard that if you run @ 9 psi the supercharger gets too hot because there is no intercooler, have any of your'e mate found this??

[Phi]

Most ppl that run over 5.5psi upgrade to 305-320cc injectors. It just so happens that Non-turbo Supra injectors are compatible. You can also custom order a set from companies like URDUSA.com RC Engineering. Don't forget to get a larger fuel pump tooo (190l/hr).

[UK_MRV6]

Would the standard injectors handle the supercharger ok @ 5 psi or should I upgrade them. I was thinking of putting 440 supra injectors in. Will upgrade the fuel pump, bit of a Grey area on the mr2 fuel pump cos I don't know if the n/a's the same as a turbo fuel pump.

[Phi]

There are a large number of ppl that have been running 5.5psi on stock injectors and pump without any reported problems. I'm not sure what your long term plans are, but if it's looking closer to 6psi, you might aswell get larger injectors and a pump too. It's much safer, not to mention cheaper than rebuilding a grenaded engine.
440 seems excessive though. Keep in mind, piggy back fuel controllers like the Apex-i SAFC are ineffective after 50% increase in injector size from stock.

[UK_MRV6]

Hi mate, putting the supercharger on will use all my spare cash up and some. So for the forseable future I would be running no more than 5 psi. Might have to upgrade the two's fuel pump though.

[terrastrife]

and ya internals depending on their condition

[JetspeedCamry]

^ Stock internals will handle 5.5psi...no need to upgrade them unless your planning for higher boost levels..which obviously means more $$$.