Author Topic: Beginner, novice trying to run a BBC with Hilborn injection (Read 7225 times)

tcoupekyle · « **on:** July 16, 2018, 07:34:03 PM »

I got the car to start but idle and Rev it will not do very well. Barrel valve adjustment seems like it does nothing. Then if you try to throw a Rev it slowly climbs the rpms.

I don't have a clue what to do. Any ideas?

Paul New · « **Reply #1 on:** July 16, 2018, 07:52:36 PM »

Is the system flowed? Is it plumbed correctly? What spring pressure is your idle bypass set at?

tcoupekyle · « **Reply #2 on:** July 16, 2018, 08:13:57 PM »

https://photos.app.goo.gl/4pZeoBmptyJqZbNWA

tcoupekyle · « **Reply #3 on:** July 16, 2018, 08:15:13 PM »

IDK if it had been flowed IDK if it's plumbed right...

tcoupekyle · « **Reply #4 on:** July 16, 2018, 08:16:59 PM »

How can I tell the pressure?

msundstrom · « **Reply #5 on:** July 16, 2018, 08:19:26 PM »

Is distributor timing on, lots of fire out the zoomies is a tooth retarded timing? BV leakage%?

tcoupekyle · « **Reply #6 on:** July 16, 2018, 08:28:32 PM »

I have timing set at 36 degrees. IDK about barrel valve leakdown.

msundstrom · « **Reply #7 on:** July 16, 2018, 08:41:30 PM »

Don't know your details that Paul brought up but mine for straight methanol was 28% +\-BV leak, 130+\- main jet with 2 psi idle bypass on a 6.08 gpm pump at 4000 rpm, throttle plates at .003 Hilborn 2 7/16" on a 467 inch BBC.

tcoupekyle · « **Reply #8 on:** July 17, 2018, 04:10:38 PM »

Mines a 468 .090 pill aside from that I don't know if seems like it's giving it way too much fuel.

msundstrom · « **Reply #9 on:** July 17, 2018, 07:04:20 PM »

Best advice I can give is send your pump, injectors and bypasses to Spud at Fuel Injection Enterprises and have it flowed and the tuneup will be very accurate, no guessing and no broken parts and it's very inexpensive.
Mark S

Paul New · « **Reply #10 on:** July 17, 2018, 08:24:56 PM »

Look at this page it shows the plumbing, is this how you have yours?
http://hilborninjection.com/wp-content/uploads/2016/02/installation.pdf

tcoupekyle · « **Reply #11 on:** July 19, 2018, 07:02:08 AM »

I was looking at that schematic but mines done differently
.

hotrod316 · « **Reply #12 on:** July 19, 2018, 07:31:37 AM »

sorry if I was closer would drive over and help you steve m

wideopen231 · « **Reply #13 on:** July 19, 2018, 10:00:02 AM »

Best advice you have gotten or will get.Same as above get it flowed regardless who.They will get you about dead on and can advise you after the sell. Compare cost of flowed system to cost of wasted fuel,wasted oil if milking it and any parts you could break along the way like flexplate from hard kick back. You will see where flow job is money ahead.

tcoupekyle · « **Reply #14 on:** July 20, 2018, 08:30:45 AM »

Thanks guys I think I'll be getting it flowed

Author Topic: Beginner, novice trying to run a BBC with Hilborn injection (Read 7225 times)

tcoupekyle

Beginner, novice trying to run a BBC with Hilborn injection

Paul New

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

msundstrom

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

msundstrom

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

msundstrom

Re: Beginner, novice trying to run a BBC with Hilborn injection

Paul New

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection

hotrod316

Re: Beginner, novice trying to run a BBC with Hilborn injection

wideopen231

Re: Beginner, novice trying to run a BBC with Hilborn injection

tcoupekyle

Re: Beginner, novice trying to run a BBC with Hilborn injection