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View Full Version : Max boost for 550's

Loomis112
08-03-2014, 04:32 PM
I got a gt2871r and denso 550cc's.

What can I max them at before I have to switch to 740+'s?
waxball88
08-03-2014, 04:37 PM
About 350ish
Loomis112
08-03-2014, 05:03 PM
So around 16 psi?
waxball88
08-03-2014, 05:18 PM
Does your turbo make 350hp at 16psi?
Loomis112
08-03-2014, 08:03 PM
No im asking with my turbo would I be able to make 16 Ibs withought maxing my 550's sorry if I wasnt explaing myself as needed
anti tyler
08-03-2014, 08:19 PM
Why would you want to max the duty cycle of your injectors? that's asking for a failure... in my opinion that's just plain stupid. I run 7psi on 550's & a t3/t4 and I make 320 easy...
derass
08-03-2014, 09:16 PM
I am using 550cc and GT2871R. I made 323 whp at 15 psi. Injectors had a max duty cycle of 82%. This was with stock fuel pressure. Waxball has got it right, you could make around 350 whp but it would take increased fuel pressure and the DC would be very high.
Loomis112
08-04-2014, 02:43 AM
I am using 550cc and GT2871R. I made 323 whp at 15 psi. Injectors had a max duty cycle of 82%. This was with stock fuel pressure. Waxball has got it right, you could make around 350 whp but it would take increased fuel pressure and the DC would be very high.


That's about what I want to lay down is around 330whp and it seems like you're doing it so thank you for answering.
fondandkit
08-04-2014, 08:24 PM
Waxball has got it right, you could make around 350 whp but it would take increased fuel pressure and the DC would be very high.http://goo.gl/EzvxlA