Rough dyno day.....
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Rough dyno day.....
Well I dynoed my new setup and found alot of problems....My injectors are way too small, the first pull on the dyno was a measley 434/406 but this was with 26 degrees of timing and pump gas. The A/F was almost 14:1. The valves started floating at 6100 so I never saw peak torque. Run 2 and 3 were basically the same but I tried to richen up the program and basically my injectors are maxed out. Richening up the fuel 15% still yeilded 13.3:1 and 443/408 with valves floating and power dropping off. I guess its back to the drawing board, need new injectors and get some new valve springs. I think I am going to pull the heads to check for some bent valves because I am losing compression in one cylinder.
Phillip
Phillip
Le Mans Master
Joined: Jul 2002
Posts: 7,370
Likes: 8
From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
Re: Rough dyno day..... (Phil97SVT)
Your dyno numbers show alot of promise though. Get the 42lb. ford injectors, these will be more than enough for your current setup and give you a little extra room for more horsepower in the future ....afterall we all know you can never have enough HP :cheers:
[Modified by runamuk, 11:32 AM 9/13/2003]
[Modified by runamuk, 11:32 AM 9/13/2003]
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Rough dyno day..... (runamuk)
Your dyno numbers show alot of promise though. Get the 42lb. ford injectors, these will be more than enough for your current setup and give you a little extra room for more horsepower in the future ....afterall we all know you can never have enough HP :cheers:
[Modified by runamuk, 11:32 AM 9/13/2003]
[Modified by runamuk, 11:32 AM 9/13/2003]
Phillip
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Rough dyno day..... (Phil97SVT)
Oh...just for those who are interested.....
This was on 93 octane pump gas and bone stock timing. NO KNOCK. :yesnod:
Phillip
[Modified by Phil97SVT, 2:01 PM 9/13/2003]
This was on 93 octane pump gas and bone stock timing. NO KNOCK. :yesnod:
Phillip
[Modified by Phil97SVT, 2:01 PM 9/13/2003]
Safety Car
Joined: Mar 2002
Posts: 3,556
Likes: 2
Re: Rough dyno day..... (NEPTUNEBILL)
Phil, man you must got ***** that clank together when you walk-experimenting on your motor and breaking fairly new ground w/o a tuner to assist you! Good luck with the new setup!
If you are floating them at 6100, you definitely need some beefier dual springs, as I think your power peak should be at 6500-6700 (don't remember your cam).
The Ford injectors should be more than enough ($280) and through the C5 fuel pum become 38 lbs I think capable of supporting over 500-550rwhp if I recall. The only problem is they are harder to tune.
Good luck bro'!!!
If you are floating them at 6100, you definitely need some beefier dual springs, as I think your power peak should be at 6500-6700 (don't remember your cam).
The Ford injectors should be more than enough ($280) and through the C5 fuel pum become 38 lbs I think capable of supporting over 500-550rwhp if I recall. The only problem is they are harder to tune.
Good luck bro'!!!
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Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Rough dyno day..... (MiamiDave)
Well, I guess dyno day is looking better.....Called the Dynoshop and guess what.......
They used generic weather conditions for the correction.....looks like the Horsepower was 3 - 3.5% off. The numbers he gave me were 3 - 3.5% too....LOW. :crazy:
Phillip
They used generic weather conditions for the correction.....looks like the Horsepower was 3 - 3.5% off. The numbers he gave me were 3 - 3.5% too....LOW. :crazy:
Phillip
Drifting
Joined: Jan 2002
Posts: 1,731
Likes: 1
From: Bay Area CA
Re: Rough dyno day..... (Phil97SVT)
What you're doing takes time. Lots of potential there. I'm curious, did you rev only to 6100 rpm? What size injectors?
I'm jealous, our "pump gas" is only 91 octane. :(
Best of luck to you. :cheers:
I'm jealous, our "pump gas" is only 91 octane. :(
Best of luck to you. :cheers:
Team Owner
Joined: Oct 1999
Posts: 31,976
Likes: 487
From: Guinness Its whats for B'fast JAWGA
CI 3-4-5-9 Veteran
Re: Rough dyno day..... (Red C5)
Lots of power to be unlocked. :yesnod: Some learning pains of creating your own setup looks like it'll be worth it when it is sorted out. :cheers:
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Rough dyno day..... (Red C5)
What you're doing takes time. Lots of potential there. I'm curious, did you rev only to 6100 rpm? What size injectors?
I'm jealous, our "pump gas" is only 91 octane. :(
Best of luck to you. :cheers:
I'm jealous, our "pump gas" is only 91 octane. :(
Best of luck to you. :cheers:
Phillip
[Modified by Phil97SVT, 9:59 AM 9/15/2003]
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
Re: Rough dyno day..... (93Polo)
Lots of power to be unlocked. :yesnod: Some learning pains of creating your own setup looks like it'll be worth it when it is sorted out. :cheers:
1) Meziere Water Pump..10rwhp easy
2) Richened fuel curve, 13.3 -> 12.8 4 - 8rwhp
3) agressive maximized timing tables, 26 - 32 2-5rwhp
4) Larger injectors
Phillip