Wat injectors?

[ed39]

looks like i need a set of injectors. was running bosh blue tops was thinkin about goin with those again. but im just wondering wat i should go with. i plan on upgrading turbo and prolbably the intercooler in the future so im just wondering should i up the injectors now or wat.

wats into it so far... cat back exhaust, 3inch dp,hot wire,upgraded intank fp,adj reg,atr ram air intake,turbo tweak chip,rjc racing plate.

in the future maybe a ta49 turbo with stock location strench intercooler

[PaCemkr86]

http://www.gnttype.org/forums/showthread.php?t=8523&highlight=injectors

[Keller]

I think the Bosch "blue tops" would be fine for a street combo with a TA49. They served me well. And, you already have them.

However, there is no doubt that the Mototron 60's are the hot ticket for just about any combination.

[ed39]

yea they better be nice for 400 bucks...yea me being 18 and a part time job thats def not in my budget ill stick with the blue tops. worked good before and i wont have to reburn my chip

[ed39]

wat about some flowed and matched 50lb'ers??

[Keller]

Those will require low impedance drivers to be installed in your ECM.

[ed39]

please explain.....

[PaCemkr86]

Those will require low impedance drivers to be installed in your ECM.
is they are the MSD 50# they work fine its only the siemens 55# and larger that need the new injector drivers installed in the ECM

the Mototron 60-65# DON NOT need the ecm mod

Hands down the mototron 60-65# are the best things out there for the turbo buick..
they work excellent for everything from mild to wild

[UNDER-PRESSURE]

Stick with the Blue tops for a TA-49 combo. Save that injector money & place it towards an Alky kit where you will see some real gains. You need to run the TA-49 over 20 lbs to see any real gains over a stock turbo & pump gas isn't going to cut it.

[ed39]

ok... now tell me why the injectors are rated in pounds wats the purpose for this number. i know the more mods you do i.e bigger turbo. you need to have higher perssure injectors. wat is that pressure is that how much pressure they are relasing fuel at or wat???

[Keller]

Lbs./Hr. is a volume metric, not pressure. Pressure is in PSI (pounds per square inch). That does not need to increase, because you are using a larger injector.

Think of it as a hose with a bigger nozzle on the end. Bigger hole; more fuel flow.

[ed39]

ooo i get it it just sound tricky lol thanks keller

[Keller]

is they are the MSD 50# they work fine its only the siemens 55# and larger that need the new injector drivers installed in the ECM
*DOH!* Thanks for catching me on that, Phil.

[PaCemkr86]

*DOH!* Thanks for catching me on that, Phil.
no problem bud

[turbomonte]

:shock: how big can i go before i need a bigger turbo.

[Keller]

In theory, you should install upgrades together as a system so that things match.

There is no required turbo size for a given injector. The MotoTron 60's seem to handle small pulse widths well, and therefore probably work on even a stock turbo car well - provided you have the right chip.

[PaCemkr86]

In theory, you should install upgrades together as a system so that things match.

There is no required turbo size for a given injector. The MotoTron 60's seem to handle small pulse widths well, and therefore probably work on even a stock turbo car well - provided you have the right chip.

excellent .. that should be a sticky Scott..

and btw the MotoTrons are working awesome on my budget hot air Buick , that still has the stock turbo