upgraded turbo to T28

[bman2033]

i upgraded my stock s13 sr20det turbo to GT28 but i did nothing with the injectors yet.... i need to know what size the injectors are in the stock engine and if it is safe to keep them or should i upgrade them also i WILL tune it after the turbo breaks in, so let me know what you guys think or know thanks.

[bman2033]

bump

[neverlift]

let me get that old turbo

it depends on how much boost you are going to run that new turbo at, and how the boost comes on. IIRC 370cc/min is what a redtop has stock. I think they should hold up to about 15 dont hold me to that, some have pushed past 10 on stock 270cc's in the kado a search for injector calculator, should be usefull

[bman2033]

i will be selling the stock turbo thanks i will search

[180fan]

i wouldn't do 15 on stock injectors or the side mount ic either. which gt28 you get? the 2871r that everyone else has? If that's the turbo you got, i'd suggest at least 550's, a z mafs, fpr, and a ecu tune from rs enthalpy

[bman2033]

i got the oem s15 turbo gt28 and for some reason right now the highest the boost goes it to 5psi on the gauge i wonder if that is stock boost but you say to get the 300zx maf and 550cc injectors, and i have a shop here that will flash and tune it for me, but is it safe to drive it at the boost it is at, until i save up to get some more money to get the new parts?

[180fan]

oh ok a t28. I would switch out the injectors for 440's instead of the 370's you've got now. 7psi is stock. screw getting all the other stuff. get the 440's and probably an afc to let you get it setup ok and call it a day that way.

[bman2033]

yeaH talked to tune shop and they sugessted to get a aem stand alone ecu to program my car the best way possible, does anyone have a used on that they can sell, let me know and i am still selling my stock turbo from the s13 how much should i ask for it on ebay???

[180fan]

for a t28? screw that. Just get the 440's, the z mafs, and get an enthalpy rom and call it a day. you should be able to obtain all that for the cost of the aem ems without a tune.

[nismo180sxS-13]

I went ahead and upgraded to 550's w/ z32 MAF z32 fuel pump and splurged on the JWT ECU to run it. I would most definately consider upgrading yours if you plan on running a higher boost pressure, which I assume you are considering your upgrading your turbo. I am running 17psi on mine but I got the T28 from heavy throttle.

[bman2033]

what horse power are you outputting to the wheel with those mods????

[bman2033]

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[bman2033]

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