so ive seen stock gsr's make 300-350whp with out a problem on turbo applications but have yet to see one with a SC and nitrous...with the amount of torque that may be created by such a setup, would this be safe? i plan on reaching this goal in the near future but i wasn't sure if my stock block would handle this?? has anybody seen a setup reach this goal without modification to the SC or motor? here the setup i have in mind:

stock b18c
255 walbro
JRSC on 8-10psi non intercooled
rc 550's (should i go bigger?)
NOS wet shot (65-75 shot) plumbed before SC
aem fuel rail and FPR
NGK bkr7e's
4-1 header with 2.5" collector
2.5 " straight exhaust (should i go bigger here?)
hondata IM gasket
68mm TB
ITR intake cam
cam gears

 

I think you might with a better set up! the max boost you can safley boost would be 9psi although since nos will be in the mix you might be able to go a little more but think about this, get a better header!! tri y replica would be a better choice than a 4-1, , get the lht water intercooler setup that way you can boost over 9psi which is the stock jrsc max psi before det. becomes a matter, this would greatly help you reach that goal and help keep it safe, iat's stay real low with the lht, so with that, boost around 13-14 psi!, also swap your stock gsr intake cam fo a itr intake cam this is a great combo for the jrsc, a bigger tb at least 68mm, a hondata gasket, and what intake are you using? i love my comptech ice box, your injectors should be fine you can always get 750cc injectors they can tune them down if needed check my thread out im shooting for 280hp with out any major mod to the jrsc!!
https://honda-tech.com/forums/appearance-build-threads-122/c-street-sleeper-want-feedback-comments-lots-pics-%2A%2A%2A-2556604/

 

actually if im not mistaken, the JRSC's like shorter/larger primary's like the kamikaze header so i think the 4-1's would actually work better then a tri-y although im not sure as i havnt really seen any dyno comparisons, also, the max safe boost on a SC would be around 11-12 psi depending on how quickly the the air is exiting the motor as PSI may differ from one header to another but the problem with running high boost levels on a JRSC is not only the heat but also the possibility of over spinning the charger which is why i want to keep it @ 10 psi. the heat problem i think would be under control considering the nitrous will cool things off a bit so im not to concerned about that but also, im a little concerned at what the nitrous would do to the LHT as it does have to pass through the cores and im not sure if those cores would hold such abuse... oh and i forgot to add, i actually do have a hondata IM gasket, i'll add it to the list. good idea on the larger TB and intake cam.

 

also, should i run e85 or similar, or would i be able to reach this goal with just 93?

 

Most guys run a small dry shot through the blower. I dont know much about the b series kits is there room for a direct por kit in the manifold??? or the nozzle kit..

 

Theres a few spots the best imo would be get a tb spacer and connect the nos nozzle there cause the spacer provides a tap.

 

well i saw this just recently in the big JRSC thread and thought...what a great idead for a direct port nitrous setup but then started thinking, thats waay to close and might come on way to strong...

http://i5.photobucket.com/albums/y17...T/P8060035.jpg
http://i5.photobucket.com/albums/y17...T/P8060038.jpg

it also wont help in cooling down the SC and i want to get as much atomization of the nitrous and fuel as possible for an even flow across cylinders.

 

bump! anybody have some more suggestions?

 

My good friend made 298whp on his stock sleeved b20 bottom end/ stock gsr head. He had forged pistons, and rods. Had the 9psi pulley and a 50 shot i believe. 93 octane. Car ran 12.6's all day long on 22inch slicks.

The car over heated i believe and lifted the head.

It was a FUN car to drive!! Good luck

 

where there arp headstuds in the mix?

 

IMO it is possible with excellent tuning and good gas.

Internals make it more reliable and oops proof.

Any detonation though and say good by to your ringlands.

 

ok so assuming the motor is built, how large of a shot do you guys think the SC would tolerate? could i be able to run a 100 shot wet through there?