Nitrous

[thebig450es]

What are some good kits? I'm thinking of a 15 to 20 HP shot. With the engine built it should handle the stress fine.

[witech]

From my experience a tool steel wrist pin is a must. The kit I used was a wet system with jets from 12 to 22 horsepower. Of course we went right to the big ones . The fuel pump was a simple $25 carb one with a built in regulator.

[thebig450es]

boondockers and boss nos kits seems decent, any others i should look into?

[tri5ron]

why stop there ???

http://www.turbobygarrett.com/turbobygarrett/images/catalog/turbokits/TK_GarrettHondaSportrax_EX400.pdf

LOL,...
Sorry, I just couldn't help myself ! LOL !

I'm sure we'll be hearing from the Drag Queens in very short order,
LMF'NAO !!!

[thebig450es]

If i had an extra 4100....i would have it lol with my set up i hope to be in the 45-50hp ill find out next week. I was thinking even a 10hp shot would help pull high gearing in a drag.

[witech]

The thing about the nitrous is the power/torque down at the lower rpms will be crazy high giving the acceleration. this is also what breaks parts as the stresses are far beyond what a highly tuned engine would see at the same rpms.

[thebig450es]

What should a built lower end hold up too on a 400? Thats the million dollar question lol

[finsteratv]

well even with some of the huge bore high compression kits way back when it appears they held up well. but i'd research those and how they held up, then if your numberare close you should be set!

[JOHNDOE83]

Nitrous express has the best kit at the best price $400ish bucks for a single cylinder complete atv nos kit.

A stroker or hotrods heavy duty type aftermarket crank is recomended if your gonna nos for drag racing.

[400exshop]

Originally posted by tri5ron
why stop there ???

http://www.turbobygarrett.com/turbobygarrett/images/catalog/turbokits/TK_GarrettHondaSportrax_EX400.pdf

LOL,...
Sorry, I just couldn't help myself ! LOL !

I'm sure we'll be hearing from the Drag Queens in very short order,
LMF'NAO !!! Do you think that was called for ron ? Just cuz you dont like it or do it does not mean no one eles should..... to the guy that post this if you like i can help you with this nos set up and give you the break down on my bike..... it make's 42 hp on motor and 72 on nos.... just took it to the drag strip after the rebuild and it went 8.20 on motor and 7.30 on nos in the 1/8 mile...... my goal is to be the first to ever make a 400ex go 6's in the 1/8 mile...here is my #803-444-0995 call or text me thanks EJ Racing.....