DSM 450 cc/min black top injectors

[HondaFan81]

What does it take to fit DSM 450 cc/min black top low-impedance/peak & hold fuel injectors into a F22ax/H23 intake manifold with F22ax fuel rail?

Basically, I want to know if it is direct-fit or requires modifications? What about new injector seals for it, do they use the same as F22ax?

[gdout90accord]

you just need to widden out the O RINGS, you might as well buy a new one.

[90Cb7sleeper]

http://www.cb7tuner.com/vbb/showthre...jector+install

you looking for this?

[d112crzy]

If the seals are nice and warm, the injectors should slip in with some force. If they're cold, I put take a heat gun and warm them up a bit so it expands some.

They fit fine in the accord fuel rail.

[HondaFan81]

Connector fits, the top-half fits fine with DSM cushion ring and F22 O-ring.

Onto the bottom-half fitment of this DSM injector. Stock F22 setup is one hard spacer, then a soft grommet ring ontop that.

The DSM injector is 3 mm than the F22 from where the soft grommet ring fits snug against the injector main bodies to the squirting tip of injector. Anyhow, I eliminated use of the F22 hard spacer on bottom and am using 1 or 2 soft grommet rings per DSM injector.

I need to accomplish two things on the bottom-half: prevent vacuum leak/good seal and injector position similar to F22 setup. I like the positioning of the 1 soft grommet ring use, but not the seal it's too borderline (seems like it may work, but I'm unsure). I like the seal of the 2 soft grommet rings per DSM injector, positioning seems like 1 mm recessed towards outside of intake manifold injector port. I ran out of time, more fooling around today after work. I want to get some better injector positioning measurements.

[gdout90accord]

all i did was widden out both soft and hard o ring, and it fits fine.

[HondaFan81]

all i did was widden out both soft and hard o ring, and it fits fine.

After this mod, how was the position of stock F22 injector to the DSM on the squirting-end?

[gdout90accord]

to be honest with you i never checked the height but i thought they were both the same height so the positioning should be the same.

[HondaFan81]

to be honest with you i never checked the height but i thought they were both the same height so the positioning should be the same.

I know the measurements, that's why I asked. I've learned to not just do something because it fits and people say it works, many are not as detailed as I. There is a 3 mm difference between the DSM and F22 injector on the lower end.

Anyhow, I'm going the route of using 2 soft rings per DSM injector on the bottom. It provides similar position to F22 setup and a good air-tight seal on the injector. On top, I'm retaining the DSM cushion ring and using the F22 O-ring.

[gdout90accord]

so if you use both soft o ring its positioned the same as stock?
is this mean your going turbo?

[quickangel93]

alright i tryed to do this the other day and the hard seals broke. then i did d112crzy idea and it did work, but it doesnt fit into the injector hole. im kinda stuck right now.

[TheNextEpisode]

so if you use both soft o ring its positioned the same as stock?
is this mean your going turbo?

haha

it means he's going to get turbo whp numbers, anyway

[HondaFan81]

so if you use both soft o ring its positioned the same as stock?
is this mean your going turbo?

No, just making sure I have enough injector for the final dyno tuning on my all-motor white Accord project. I'm looking at worst case for a 200-250 whp range.

[gdout90accord]

No, just making sure I have enough injector for the final dyno tuning on my all-motor white Accord project. I'm looking at worst case for a 200-250 whp range.

damn 200-250whp on sohc will be sick

[HondaFan81]

Well, I'm either going RC 550 cc/min peak & hold injectors or Venom 440 cc/min peak & hold injectors at the moment. I really need 440 minimal, but RC 550 are the lowest peak & hold they make and can work by lowering the duty cycle at tuning, but retain good fuel pressure.