Basically everything I wanted to do to this car is nearing completion. Close ratio Nismo 5mt, ✔️. Forced infuction, ✔️ 300whp, ✔️. Lsd, ✔️. Making it an actual contender in autox, ✔️. Only thing i have left to do is find a pair of the factory Recaro Sportster CS seats that came optioned for these. Maybe change up the suspension but here's how she sits until then.
Id like to start off by saying that I like going off the beaten path when it comes to cars. I am my own guinea pig with this project and it is still ongoing.
Car is mainly used for autox but i have been to 2 track days with it. So far, 14 events down and no issues besides a ripped cv boot. So, I thought Id share the max power numbers with off the shelf parts (term used looselv here) for anvbodv interested with what the internally stock North American market hr16de on Nissan Versa Notes and Sedans will handle. Since mine is the later (2015-2019) engine, it is multi-port. I feel this part is more important than anything when trying for mid-high 2xxhp. Just due to being able to fetch more fuel out of two injectors per cylinder. Especially when having them modified. Currentlv, at 16psi on a Garrett gt2052s, 302whp and 304wtrq. Roughly 335hp at the engine. We tried pushing it to 18 or 19psi, however, my 225 tires ended up spinning on dyno the first time. Then when adding more weight, the 300hp rated Ogura Racing clutch slipped. We quessed it hit around 340 wheel torque when that happened. Mind you, I am still on a 2" cat'd (PLM Hi-flo) exhaust. If I decided to bump it up to a 2.5" and delete the cat, it would make another 20-40hp, easily.
Car does have an LSD, however, its only a Nismo 1way and quite useless at this power level. Car was originally a 5mt but currently running a Nismo 4.21 fdr trans. It is mainly just on low boost of 240wheel for putting around. Car also currently comes in at only 2219lbs, wet.
It has disappointed a lot of other cars that have pulled up next to it and that makes it worth the headache and time.
Tried for more power but my 225 tires started spinning on dyno. Then added more weight and my 300hp rated Ogura race clutch started slipping. Also, my lsd feels like its fighting for its life.
I think this is okay for now. Considering its a stock block and im still on a 2" cat'd exhaust but go little Versa, go!
I made the switch from 93oct to e85. Car automatically went from 240whp to 275whp on the same 14psi and this baby Garrett gt2052s. We then added +2psi and +2⁰ of timing and a $115 AEM 340lph fuel pump. Turbo is maxed out now at 16psi.
Result, 300whp has been achieved.
My car dynoed bone stock few years after purchase @94 hp to the wheels.
Final dyno numbers here
https://imgur.com/a/wlwgsW1#Y5rCLCm
My LSD in action
With my previous 240whp, my injector duty cycle was at a cool 47%. I switched over to e85 today and installed a aem 340lph pump. My Injectors hit 75% and my turbo has officially hit its threshold. Who woulda thought?