I'm running a stock-internals SR200DE (97 200sx se-r) and it has a MLS head gasket w/ ARP headstuds. It has a GT30R setup, cams, and many bolt-ons.

It's being tuned with JWT ecu w/ emanage on top of that. I plan on bringing it to get dyno tuned this weekend... Would it be an unsafe idea to tune it for 22psi? It is currently at 16psi... what can it handle safely with what I have? Thanks!:biggthump

i would say yeah, i dont know how long it would hold up....

tune it for it and see how long it lasts

I'm running a stock-internals SR200DE (97 200sx se-r) and it has a MLS head gasket w/ ARP headstuds. It has a GT30R setup, cams, and many bolt-ons.

It's being tuned with JWT ecu w/ emanage on top of that. I plan on bringing it to get dyno tuned this weekend... Would it be an unsafe idea to tune it for 22psi? It is currently at 16psi... what can it handle safely with what I have? Thanks!:biggthump

Calculate *** max HP that your injectors and MAF can support and go from there.

Calculate *** max HP that your injectors and MAF can support and go from there.

64# at 4bar with Z32 maf

anyone think it's doable with that setup?

64# at 4bar with Z32 maf

That is the beauty of this forum. The info. is here for you to search for. Your going to need to learn a lot about your setup to optimize it's performance.

Here are the threads you need to visit to determine how much HP your fuel setup can support.

http://www.sr20forum.com/technical-information-library/149465-maf-size-part-s-whp-output.html

http://www.sr20forum.com/technical-information-library/142897-inj-size-whp-output.html

anyone think it's doable with that setup?

Your asking the wrong question. It is not how much boost as much as it is how much power. Boost is boost however 14 PSI on a T25 is certainly not going to flow as much air as a GT35 at 14 PSI. Thus you should be seeking a HP goal and work the boost up to that goal on the dyno.

dude.... you're running 16psi on pump gas?! That's ballsy....

That is the beauty of this forum. The info. is here for you to search for. Your going to need to learn a lot about your setup to optimize it's performance.

Here are the threads you need to visit to determine how much HP your fuel setup can support.

http://www.sr20forum.com/technical-information-library/149465-maf-size-part-s-whp-output.html

http://www.sr20forum.com/technical-information-library/142897-inj-size-whp-output.html

Thanks! What about the motor though? Can the motor handle that kind of abuse with just MLS head-gasket and headstuds?

dude.... you're running 16psi on pump gas?! That's ballsy....

Why is that ballsy? Never had an issue with my Talon...

It has meth injection, but Idk if it works or not to be honest.. I'd like to know for sure..

Thanks! What about the motor though? Can the motor handle that kind of abuse with just MLS head-gasket and headstuds?

You really should research this more. Plenty of 400+ whp stock bottom end setups around.

You really should research this more. Plenty of 400+ whp stock bottom end setups around.

i dont think on the stock usdm DE, the DET yeah, but not to sure about the DE, it might initially, but for how long?

thats what I was tryin to get at earlier, but if you are asking that kind of question, maybe he shouldn't be turbo

i dont think on the stock usdm DE, the DET yeah, but not to sure about the DE, it might initially, but for how long?

thats what I was tryin to get at earlier, but if you are asking that kind of question, maybe he shouldn't be turbo

Well that's where the confusion is lying for me... I appologize for my ignorance, this is my 1st Nissan, but deff not my 1st turbo car. I could tell you anything about a DSM, but I am trying to learn about this Nissan.

I always thought the bottom end in the DE and DET were the same, no? Also, I've heard ppl have made 400-500whp and been ok... maybe I'm wrong. basically with my mods, I'm wondering if I can run 22psi on 93oct and have the motor last me a while?

I guess the main things that matter are as followed:

stock motor w/ MLS head-gasket & ARP headstuds.
GT30R Turbo
JWT S3 Cams
64# injectors @4bar, pump/regulator
Z32 MAF
JWT ECU & e-manage
HUGE Precision FMIC (probably 600hp core)

Man... The speculation on this board amazes me. There are plenty of usdm and jdm DE's that have made over 400 on this board.

Honestly no one can tell you if it will last because there are too many variables. Tune, abuse and driving style, current motor condition, just to name a few. The reality is that you are going to have to try it and see.

Man... The speculation on this board amazes me. There are plenty of usdm and jdm DE's that have made over 400 on this board.

Honestly no one can tell you if it will last because there are too many variables. Tune, abuse and driving style, current motor condition, just to name a few. The reality is that you are going to have to try it and see.

Can ran 179-178-178-179 compression. I want to have fun with the car, but I'm also not a neglecting driver... I maintain my cars very thoroughly and I don't plan on banging gears and seeing redline all of the time. I think you're right with trying it out and I appreciate your responsiveness to this subject. I will be getting it conservatively dyno-tuned this weekend.

I think it's do-able, but just want to get some extra opinions..

just do it!

Why is that ballsy? Never had an issue with my Talon...



Because the DE has 9.5CR, unless the head gasket lowers it. The DET has 8.5CR and can probably run 20psi all day long. Heck, I run 22psi on my Evo with 8.8 CR, but the head on the 4G63 seems to be a little more detonation resistant than the SR.

If 22psi is up-in-the-air questionable, what can someone reccommend starting at? I can work my way up or down from there using the boost controller. Thanks.

I have been running 29 lbs on 100% (1100 cc aprox)meth on a 75lbs turbo man... The only thing you have to worry its to NEVER let the car knock ..and this is in a complete stock DE motor.
You are going to break the trans before the motor..if you tune the motor right
I think its totaly pocible to run 22-5 lbs on pump just you need the right parts and a very good tune (built motor or at least forged pistons) I have tune my car on 92 oct and boosting to 16-7 lbs without any prob 0 knock and aprox 350-65 whp.
What size if nozzle do you have for the alky?
Cheers and good luck.

I have been running 29 lbs on 100% (1100 cc aprox)meth on a 75lbs turbo man...

What size turbo are you running, a T67 (75lbs)? I'm using a 30R...

What size if nozzle do you have for the alky?
Cheers and good luck.
I wish I could answer this... I honestly know nothing about the meth setup in the car, it was in there when I purchased it.