The "hollow Bolt" that I mentioned is a Honda part and can just be seen in my post in the gallery. The guys that did that part of the nitrous installation are Honda floggers, and do a lot of nitrous on their rides. They did some additional cross-drilling on this piece in order to insure more flow for the bigger mill.

 

Here goes: when you use NOS you want 1 to 2 steps cooler of a plug. This will allow the plug to cool down before the next ignition faster than the reg. spark plug(denso ik20). You need this or you will burn up your plugs much FASTER.
The first thing to show wear on a NOS set-up is plugs. Check them every 3-4weeks, if they are OK good job. If they are burning up, replace 2 steps cooler. (cooler plugs should have a longer stem allowing more surface area to cool) I think. Performance will not on the juice????

I will post in few weeks when my set up is done. GS400 (90wet single fog, purge,heater,press. gauge, rpm act.)

 

Can't wait to see it.

 

the gs tranny can handle upto 500whp. I had a nitrous wet system on my ltuned gs400. I was one of the first to squeeze 150 back in early 2000s. Went up to 175, then 200, finally at 225 wet single fogger. By that time i had dual bottles for pressure. The ecu can handle up to 200wet shot fine as for fuel pressure. At 225 i was starting to lean out. The the pencil rod flew out of my block on a sunday cruise. Btw i was on stock fuel pump and injectors. The tranny was starting to slip a little as well. A lot of people from central cali lost alot of money to my gs.

 

16 year thread bump... that's got to be a record. While we're here, I have to say I'm surprised the stock fuel system and ECU were able to support a 200 shot before starting to lean out at 225. That's actually kind of impressive.

 

back then most never pushed their lexus's hard with nitrous. At the same time i was a maniac. Yeah around 225 you have to start upping the injectors and fuel pump. Im going to that socal meet on the 22nd for the sc's. Bringing my sleeper sc430 out.