sooo, does it cool or not?

Never said it was dependent on compression... but the cooler charge is less effective in the higher cylinder temps of a big compression motor. Just for comparison sake a 250 kit on a 14to1 motor wont actually see a true 250 on a dyno maybe only 175 or so.

 

I thought cooling the cylinder enough to dump more gas was what what nitrous did

 

depends on the verbage. you were referencing cylinder temps though and in terms of making power it adds heat...for an example, you could run an alcohol mister, which would cool the intake charge, and allow you raise the boost, while giving you a much larger buffer zone for error. each allow for more power to be made, but one adds fuel to the fire, and the other adds oxygen



as for the higher cylinder temps, needing more nitrous, im not saying im an expert by any means, but that doesnt sound right. I would think the need for more nitrous to achieve a certain # compared to some other lower compression car needing less to have an equal gain would come down to the efficiency of the motor.

 

n2o doesnt cool the cylinder, more oxygen requires more fuel to keep the mix stoich for the conditions.

 

not being rude, but read my post, #47 i think it is. i said " on big turbo's 3lbs is 65hp..." by that i mean they push more cfm which in turn means less boost per hp needed like your saying. i couldnt tell if that was a rude comment or not lol so im just saying that. and yeah im a turbo guy and i know turbo's reallly well. when i got into them when i was about 11yrs old, i studied them all day every day till i knew a lot and then after working on subie's, a 1jzgte powered nissan 240sx, a awd talon, my mustang, and about 6 other turbo'd 240's and big boosted f:650's... at work and with a couple race teams running 108mm+ turbos

i know my turbo crap. lol

im about done with this thread its all by what you like really, both are based on your bank and effort to your outcome and they whp wise even out, but while saying that they're also two different beasts lmao

~tyler

 

Were on the same page..I worded it wrong. Higher cylinder temps generated by higher compression.
Lower cylinder temps...lower compression

 

oh and theres two ways of spraying a FMIC

1) injection spraying: spraying the nitrous into the intake charge to drop the heated air

2) spraying the nitrous onto the fmic to cool the air temp hitting the FMIC

as most of you know(i hope you do lol) when you compress a vapor(oxygen, nitrogen....) it heats up greatly and this is the main reason for a FMIC(front mount intercooler)

so no its not a waist of nitrous but its not using the nitrous as you think it is being used.

~tyler

 

There use to be a yellow bug runnin around that some old street racers might remember that was turbo. He had no intercooler because it was a draw-through set-up with a t-88 on it. He had no intercooler, but used the nitrous to serve as one AND to get that monster spoolin outta the hole

 

the fisher buggy?

 

No, it was a guy from Clair-mel. It was primer black for a long time then he had it painted canary yellow, suicide doors, full cage, Welds w/ M&H's on it. His name is Tommy also. We was always at 84 lumber, bread factory, Fowler, 301 and Seabreeze. Car was stipid fast for a street car but he couldnt keep the trannys together.