The Neutron

Hi i have a 2000 honda civic with a b16a2 swap. I had first started noticing this after i had filled up the tank yesterday. The car seems kinda sluggish. It takes longer for the rpms to go up and when i hit Vtec i can feel the car slow down. I had put octane booster in the tank and that helped a little but not really. I also checked the Vtec solenoid screen and it was clean. My next guess would be fuel filter is clogged and is restricting fuel flow. Any other ideas?

I have a few engine mods. Type R cams, headers, cold air, lightened flywheel and stage 2 clutch.

ejv8s10

If it is related to the last tank of gas, yes consider the fuel filter or contaminated gas.

Also consider the fuel pump, which would be coincidental to the last fill-up.

NotARaCist

iTrader: (1)

Full details on the swap. You need to give them to us. What ECU are you using? What transmission? What the swap known working before you put it in? Compression test? Spark color? What fuel are you giving it?

grumblemarc

iTrader: (4)

Does it throw a CEL when it happens?

The Neutron

No CEL. Its not the swap. Its been running fine since i got the car. I have a p2t ecu along with a 5 speed. I have a few engine mods. Type R cams, headers, cold air, lightened flywheel and stage 2 clutch. But the car was running fine 3 days ago so im thinking it had to be fuel related or maybe my Vtec solenoid is bad? I had put 87 octane in it but today i had put octane booster so i should be fine octane wise

The Neutron

When i hit Vtec it also seems to be a little louder than normal but i think i have a small exhaust leak

NotARaCist

iTrader: (1)

Well, the 99-00 SI calls for premium, so there's a problem right there. Why are you feeding it 87 when it calls for 91?

The Neutron

I didnt know it recommended 91 but with the octane booster im at around 100

grumblemarc

iTrader: (4)

Bullshit. Octane booster doesn't make up that much of a difference.

NotARaCist

iTrader: (1)

From 87, to 100?

bahahahahahaha no, no you aren't. Even if you were pouring pure ethanol in there, you aren't at 100. Straight ethanol has an AKI octane rating of 99.15, in case you were curious. ****, even if you were pouring 110LL in there, you've had to put like, 2 or 3 gallons of it in your tank.

The Neutron

Still. Ive ran 87 in it before and had no problems so i know octane isnt the issue

NotARaCist

iTrader: (1)

I asked you 6 questions. You answered 3. If you expect to get help, you'll need to answer all questions asked of you. While we're at it, I'm going to add a 7th and 8th question to the pile. I'll even post them again, so you can't use that as an excuse.

And the new questions: What is your fuel pressure? Have you checked your timing?

The Neutron

Im not exactly sure on the transmission. I had bought it already swapped. He said gsr trans. I havent done a compression test. I dont know what you mean by spark color but my plugs are clean and gapped correctly. Did my timing today. Its at 18 degrees. I dont have a fuel pressure gauge. As ive said before though it ran fine 3 days ago so i dont see how trans would matter.

NotARaCist

iTrader: (1)

It's called full information. Here's a bit of advice for you. When you come to people asking for help, don't just dismiss questions because you don't think they're relevant. You came to us because we know more. If we're asking a question, there's a reason for it.

Spark color. What color is the spark emitted from your spark plug? You are the first person who didn't understand that question.

Why did you set timing to 18 degrees? Spec is 16. That would also explain your power loss.

Set your timing to 16*, where it belongs. If that doesn't help, then buy/borrow/rent a fuel pressure gauge, as well as an HEI/DEI spark tester.

The Neutron

Im young so i dont know everything. Ive never even heard of spark color till today. I tried getting it as close to 16 as i could. Only reason i adjusted the timing was because i had to go to the smog reff. Its says plus or minus 2 degrees so i figured 18 was close enough.

NotARaCist

iTrader: (1)

Why could you not get it to 16?

The Neutron

I just wanted it between plus or minus 2 degrees to pass the ref. Im doing it now but the car has to warm up again

The Neutron

Timing is at 16 degrees

grumblemarc

iTrader: (4)

And?

The Neutron

Still seems sluggish and power drops at Vtec

tony_2018

Take it to a dyno so we can see the powerband on the chart instead.

The Neutron

Im in a small town so dyno wouldn't be a easy thing. Im probably just going to drive till my tank goes empty and fill it with 91 and see if that fixes it. If not ill run the fuel pressure and compression if i can borrow or rent the tools

NotARaCist

iTrader: (1)

So, if your approach to timing is any indicator, there's a lesson you need to learn before it costs you a motor. "Good enough" isn't good enough. When you're working on something, get it as close to perfect as you can.

tony_2018

Running type r cams, no premium gas but got octane booster, stock ecu. equals the unknown. Get a video of this engine running in vtec.

The Neutron

Im in a small town so dyno wouldn't be a easy thing. Im probably just going to drive till my tank goes empty and fill it with 91 and see if that fixes it. If not ill run the fuel pressure and compression if i can borrow or rent the tools