rb25 tune help

[240sxrb25]

so i have an rb25 with bolt on stuff...garrett t60-1 turbo.

i have aem FIC witch is not cutting it. driveability went out the window and the tune sucks. it has 660cc injectors. if i were to put my factory injectors in and wire the factory computer back up and use the MAF, would i be ok driving under boost? this would be temporary until i get my EMS.

it should be the alright, as long as i dont spool up too much right? imagine it as a factory rb with too big of turbo.....

thanks for opinions

[GSXRJJordan]

What wastegate are you using? Getting the boost down low enough to be 'safe' would probably be difficult. Do you have a wideband?

[240sxrb25]

i have an hks WG and i think its 14lb spring. i do have a wideband.

[Flaco S14]

i think youll be running to lean or right at the borderline of it at 14pounds.

[Zacho]

I wouldn't boost it with that turbo on stock ecu. Asking for trouble.

[GSXRJJordan]

At 14psi on a 60-1 you'll be way lean... you'd be borderline with the stock T3/T28 at a bar. It's not just the injectors, the MAF that could be a limiter - they all hit a wall right around 300whp, which is a bar on the stock turbo.

Get a 7psi spring and keep an eye on that wideband.

[240sxrb25]

ok, well i may try it just to drive it easily to where i will be installing the ems and a few other parts before dyno time. im not looking to race it or anything haha

[crono72000]

they dont say shit happens for no reason ! i wouldent do it... i had my WG line pop comletely off once , i tryed to stay out of the boost and still get up to speed, lets just say it dosent work out to well.

[nyc240sx]

go get a 92-94 maxima se ecu and send it out to jim wolf technology it works with the rb25det
anyone one of these will work with the rb25 but you have to send it out first to be chipped and tuned

Manufacturer P/N - Year- Description - Turbo - Trans - Model-Engine - Niss. Part #
A18-B82 ED8- 1992 Maxima No A J30-VE30DE 23710-7E115
A18-B80 ED6- 1992 Maxima No A J30-VE30DE 23710-7E215
A18-A45 E97- 1992 Maxima No A J30-VE30DE 23710-97E10
A18-A47 E99- 1992 Maxima No A J30-VE30DE 23710-97E15
A18-B81 ED7- 1992 Maxima No M J30-VE30DE 23710-7E110
A18-B79 ED5- 1992 Maxima No M J30-VE30DE 23710-7E210
A18-A44 E96- 1992 Maxima No M J30-VE30DE 23710-97E00
A18-A46 E98- 1992 Maxima No M J30-VE30DE 23710-97E05
----------------------------------------------------
A18-B82 ED8- 1993 Maxima No A J30-VE30DE 23710-7E115
A18-B80 ED6- 1993 Maxima No A J30-VE30DE 23710-7E215
A18-B81 ED7- 1993 Maxima No M J30-VE30DE 23710-7E110
A18-B79 ED5- 1993 Maxima No M J30-VE30DE 23710-7E210
----------------------------------------------------
A18-B52 ED0- 1994 Maxima No A J30-VE30DE 23710-7E405
A18-B50 EC8- 1994 Maxima No A J30-VE30DE 23710-7E505
A18-B51 EC9- 1994 Maxima No M J30-VE30DE 23710-7E400
A18-B49 EC7- 1994 Maxima No M J30-VE30DE 23710-7E500

[240sxrb25]

i already had a bad tune experience. i dont want a chipped ecu that can have a tune burned on it. i want something that a tuner can easily tune in real time.