project: keeping the rb20 *student budget*

[JNS Performance]

Interesting.

For me, if I had to replace RB20, it would be with a NA Nissan V8 or with twin turbo.

I just love the sound of the NA 4-4.5 litre or so Nissan V8 when it revs -

http://www.youtube.com/watch?v=B0sb2q7sfAk&feature=related

http://www.youtube.com/watch?v=QOKsRvzvofA&feature=related

http://www.youtube.com/watch?v=-eGmN0Xoq10&feature=related

NA V8 powered Z launch -

http://www.youtube.com/watch?v=T41-cjlksyM&feature=related

NA V8 is amazing on gravel considering there's probably no grip (the lady's comments are interesting, I guess she liked it) -

http://www.youtube.com/watch?v=9bg4OPx0wTI&feature=related

Twin turbo Nissan V8 -

http://www.youtube.com/watch?v=W8bGB439lm4&feature=related

Nissan V8 was used in Indy cars, SuperGT, Lemans, etc.

Although this would be a close second -

http://www.youtube.com/watch?v=GKOOt...eature=related

man you got videos for every topic.

[Skym]

Yeap.

[love_boost]

lmfao.
i think skym is a youtube die hard. you got a question or he has a suggestion, he always has youtube videos to back his stuff up haha.
glad to see you like the car, if the rb25 turbo is a noticable gain maybe i will try and buy one

[jessem]

i would defiantly recommend the 25 turbo for a cheap upgrade, i did exhaust intercooler and the turbo all at once and i made a very big difference i think, as well my new clutch seemed to improve the speed of my shifts which i didnt think it would but a bonus,
anywho heres a few quick cell phone snaps, im in dire need of some kinda areo kit now i hacked my stock one all apart to fit this front mount

[jessem]

Little update, got out dor some drifting recently, to bad it rained still fun though.


decided i need some new suspension due to a munched fender



heres how it sits as of this week, with the front lip hard mounted and some type m skirts i gave a quick respray too





As well i found some altima fans at the junk yard that seem to work well, so ill try and mount these up soon, along with a nismo thermostat i shouldnt have to worry about cooling



keep everyone posted and some of my plans for next winter as well

[Skym]

Make sure you get the ECU retuned to match Nismo low temp thermostat.

[flipridah17]

Nice build keep it up..Makes me want to keep my R32 sometimes..

[jessem]

thanks!

never heard of having to tune for the thermostat, is it due to the engine sensors?

[m_melen]

same, i'm not sure that's necessary

[Saskacer]

Hey, what size are those works?

[love_boost]

thanks!

never heard of having to tune for the thermostat, is it due to the engine sensors?

the coolant temp sensor sends a value to the ecu for fuel trim.

never heard of it being done but if a cooler than stock water temp is sent to ecu the car may run rich.

[Skym]

From what I understand the stock coolant temp to fuel warmup tables (ECU looks at coolant temp sensor) on stock ECU are set to run richer at 62.5 degrees where Nismo low temp thermostat would normally open at and coolant temps stay constantly at while idling when engine is warm. Stock coolant temp warmup tables don't have normal A/F ratio's until around 80 degrees as stock thermostat opens at 76.5 degrees.

If you didn't adjust these coolant temp to fuel warmup tables, engine would run rich until you thrash car and coolant temp rises to 80 degrees+ and runs normal A/F ratio's, but when coolant temps drop down to 62.5 degrees after thrashing car, engine runs rich again.

To fix this problem, the coolant temp to fuel warmup tables need to be modified, so there's normal A/F ratio's at around 62.5 degrees while idling.

A low temp thermostat is used in applications where the stock thermostat on a modified engine makes coolant temps rise to near overheating levels during hard acceleration. On a racetrack with lap after lap of hard acceleration, is one application where this would happen and a low temp thermostat is needed.