Help me decide! Compression for nitrous, or compression for N/A..?!

[devere]

Ok guys, my current build is now getting a rethink. I am building a D16Y7 engine, and was originally going to use some P29's and run at 12:1 compression ration, for N/A....

I also thought i might like to add a fairly big nitrous shot in at some point in the future. I emailed Endyn, asking for a set of pistons that put sompression at about 12.5:1, and also asked about the nitrous.

Larry recommended, take the compression you would run N/A (max 12.9:1 ish), then take off a point, to give you the comrpession for nitrous, he recommended 11.83:1 mid domed pistons... so i can then run any cam profile i like.

So if it was your build, what would you do...!? Go N/A, or go a bit lower and have the option of the nitrous..!?

[jimmyb34]

they seem to know what they are doing so id go with that.... ive been pondering the idea of a high comp nitrous setup myself.. but itb's may be ab it harder to do that with lol
good luck with whatever you do

[torturedsol]

Keep it low 12:1 for spraying. A friend runs a 75shot on his y7 running like 12.2:1ish

[ardevas09]

have you ever used nitrous before? i mean, it's all preference, isn't it? if you like it, keep your compression a little lower. i love spray, but again, that's just a preference.

[NEP-tuningalltheway]

id run the 11 with spray

[devere]

have you ever used nitrous before? i mean, it's all preference, isn't it? if you like it, keep your compression a little lower. i love spray, but again, that's just a preference.

Ive never used nitrous before, no. As i am putting a fair amount of money into this build i want to make sure im getting as much from it as possible really.

I had thought about going turbo, but im juts not really a fan. Id rather get some good numbers off the engine, and then have the added bonus of a big nitrous shot. Looking at a 100 shot, maybe more depending what it will take.

I dont really know what power i can get from the engine, but for example, if i got 130whp, i would like to look at getting at least 230 on the bottle.

So im swaying towards the nitrous option.....!

[NEP-tuningalltheway]

i wouldnt go over a 75 shot

[jimmyb34]

he should be fine with a 100 shot.. tune for it and if im not mistaken youve got forged internals or will have right....

[NEP-tuningalltheway]

high comp and nitrous needs to be tuned perfect

[dragman99]

it can handle nitrous fine. run a wet kit so you don't really have to tune it.

1700posts
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[devere]

he should be fine with a 100 shot.. tune for it and if im not mistaken youve got forged internals or will have right....

Yep, forged rods, and when i decide on pistons, obviously they will be forged aswell.

Obviously the 12.9:1 cr just isnt going to be practical to build for nitrous, so if i go for that, its going to be N/A forever, unless i crack the engine open again.

If i build it with nitrous in mind at the 11.8:1 cr, how much power will i be losing out on when running it N/A, as i wont be gettign nitrous striaght away if thats the way i decide to go..

[dragman99]

3% whp assuming everything is optimized. the rush of the nitrous will override this. trust me.