As the title states, I got a good deal on a set of 450CC DSM Injectors, just curious if they will be able to handle 300WHP on a B16A. They will be paired with a AEM Fuel Rail and an AEM Adjustiable Fuel Preassure Regulator.

 

ya. make sure you have a walbro 255lph. I am on dsm injectors at 314whp

 

Yeah i have a friend running those injectors on a b16 with 380whp. Its been good for over 6 months now.

 

I'm not sure about that there. 450cc injectors aren't physically able to do that,. nor does the BSFC mathematical evidence support that. Either they are not DSM injectors or the dyno is lying to you on the amount of power. I'd like to see what the duty cycle is for that set up. I've had them max on DSMs themselves under 280AWHP

 

If you ran really high fuel pressure you could probably squeeze 300 out of them. You'd definitely be on the verge of running out of fuel, and I wouldn't recommend doing it, especially not on a B16.

Trying to make HP on a B16 means revving the wee out of it, which is the enemy of small injectors. Available injection time goes down as RPMs go up so your needs on injector sizing increase as your RPM goes up. You could far more easily make 300hp on an LS than on a B16 with small injectors.

 

I agree with you, I dont know all the specs of his car, i just know thats what hes using with no probs.. But your right could be a questionable 380 lol

 

300 is relatively common, but requires very high duty cycle. My suggestion would be to look at EVO8 or 9 injectors. They are 560cc injectors, very similar to the DSMs. They are around $75-100 shipped for a set with 30-40k miles. They are also typically in better condition than 20 year old DSM injectors.

 

Do they wire up the same way as the DSM Injectors?

Also, I bought the car 2 years ago from a guy who had a Boosted GSR in it, how would I be able to tell the difference from the OEM Fuel Pump and the Walboro Pump? He had the car pretty well stripped when he blew his motor, but I'm not sure if he pulled out the Pump.

 

All injectors wire the same. The only thing I can't comment on is if OBD1 injector clips still work with them. There are plenty of people parting out Evos, so I'm sure you can get the clips for not a lot of money.

As for telling what pump you have, you will have to look at it. You could also take the feed line, and put it in a bucket. Turn on the pump at a set pressure and test to see how much fuel it flows. I'd just look at the pump.

 

I already have Hondata installed, can I install the Injectors and still be able to drive the car? This would be pre Turbo Install. Just wondering if I could install them and still cruise around till I installed the Turbo.

 

The injector clips work fine, same physical dimensions as all the other DSM injectors.

 

There are several things to do. I'll make a list from my most recommended, to lease recommended.

1) Drive the car with the stock ECU as long as possible.
2) If you don't have a stock ECU, take your Hondata ECU, and have someone burn you a stock basemap to run your car.
3) Install your injectors and have your tuner make you a basemap for your desired injectors.

I figured that was the case, but I didn't want to say without knowing.

 

You might be able to squeeze 300whp out of them, but do you really want to risk running out of injector at the dyno? I would error on the safe side and get something larger now...

 

The Evo 8 and 9 Injectors you suggested will work with the OBD1 Injectors.

After getting the advice from everyone, I do not want to risk my motor because I want 300 WHP. However, I am turbocharging because I want 300 WHP. Looks like I'll have to find a buyer for my DSM's.

1 Last Questions, I swear! I found a good deal on a set of 880CC Precision Injectors. Will the OBD1 Clips fit right into it?

 

good info, iv never thought of it that way. I like dsm injectors because I always seem to get really good gas mileage with them, not to mention I bought mine for $30 and they are reliable.

 

Will the Precision Injectors plug into the B Series OBD1 Clips?

 

Those EV1 clips should work. You may have to shave the center of them a bit to have them fit directly

 

Thanks! Going to get some Precision 880CC Injectors tonight.

 

Yeah, they just about max out around there though. I would upgrade in the near future.

 

my dsm 450s hit 300 all day. stock fuel pump too.