Added e and exceeded my hp goal

IneedAZ · 10-01-2021, 04:50 PM

I would have to think the numbers would have been higher if my MAT numbers weren't so high. Think my final dyno run had MAT Temps in the 160s, but still yielded 848hp/792tq on e50. On a normal basis I will keep it at e30 or e40. This is with stock high side. Think he said inj pw was 6.2 or 6.3 on the e50. My guess at e30 or e40 I will be 6 or less. Now I can phase out my boostane. Today the car didn't have any added, but I still have nearly 4 gallons left to use up, so will add some over the next several months. The one thing I forgot to ask him was how well did the low side pressure hold up.

Evansa22 · 10-01-2021, 05:01 PM

Nice, so only cam upgraded to drive pump more?
Would love to hear a sound clip

IneedAZ · 10-01-2021, 05:28 PM

Quote:

Originally Posted by Evansa22

Nice, so only cam upgraded to drive pump more?
Would love to hear a sound clip

38% cam, dsx aux low side, and Lingenfelter High flow check valve.

KingLT1 · 10-01-2021, 05:57 PM

Nice gainz!!

Quote:

Originally Posted by Evansa22

Nice, so only cam upgraded to drive pump more?
Would love to hear a sound clip

His tuner targets .90 lambda...so keep that in mind. @ .82 like many tuners target he wouldn't be able to run any E on his setup.

Camaro1973 · 10-01-2021, 06:34 PM

Quote:

Originally Posted by IneedAZ

I would have to think the numbers would have been higher if my MAT numbers weren't so high. Think my final dyno run had MAT Temps in the 160s, but still yielded 848hp/792tq on e50. On a normal basis I will keep it at e30 or e40. This is with stock high side. Think he said inj pw was 6.2 or 6.3 on the e50. My guess at e30 or e40 I will be 6 or less. Now I can phase out my boostane. Today the car didn't have any added, but I still have nearly 4 gallons left to use up, so will add some over the next several months. The one thing I forgot to ask him was how well did the low side pressure hold up.

Nice gains but i dont know anyone who tunes lt4's this lean or has injector pulse width that high. 6.2, 6.3 inj pw is very high.

IneedAZ · 10-01-2021, 06:44 PM

Quote:

Originally Posted by KingLT1

Nice gainz!!

His tuner targets .90 lambda...so keep that in mind. @ .82 like many tuners target he wouldn't be able to run any E on his setup.

something I noticed, his gauges while tuning are set to afr rather than Lambda. He likes to run LT4s at 13:1. On the street I was looking at my gauge in afr and it was 12.7 to 13.3 ..so I guess 13.0 avg. For me, I have been trying to use Lambda now.

IneedAZ · 10-01-2021, 06:47 PM

Quote:

Originally Posted by Camaro1973

Nice gains but i dont know anyone who tunes lt4's this lean or has injector pulse width that high. 6.2, 6.3 inj pw is very high.

On 93 my pw was 5.0. Keep in mind that the 6.2/3 was at 50% mix which I don't plan to run. I will do a log at both e30 and e40.

IneedAZ · 10-01-2021, 06:52 PM

Curious to what afr/ lambda Pray uses. When I looked at some dyno runs on YouTube it looked as he was between 12.7 and 13.0

Joshinator99 · 10-01-2021, 06:57 PM

Quote:

Originally Posted by Camaro1973

Nice gains but i dont know anyone who tunes lt4's this lean or has injector pulse width that high. 6.2, 6.3 inj pw is very high.

Agreed. Playing with fire IMO.

IneedAZ · 10-01-2021, 07:08 PM

Quote:

Originally Posted by Joshinator99

Agreed. Playing with fire IMO.

Well..he has tuned many at 13 across the country..unfortunately I haven't seen any failure rates published by his tuning or anyone else for that matter that shows it was a lean failure. If you have any and they show what afr or lambda it was at on a LT4 let me know. Many online dyno videos don't show the afr/ lambda at all.

IneedAZ · 10-01-2021, 07:33 PM

Wonder if this is still true as I found this written in 2017:
Dynojet software uses 14.7:1 air fuel ratio to determine Lambda 1.00. If the fuel has oxygen in it as does e10 (3.5%), then you must factor in .959, which brings a 13:1 air fuel ratio down to 12.5:1.

JSH · 10-01-2021, 07:41 PM

Sounds good. We'll tune mine on E85 over the next 2 weeks.

Quote:

Originally Posted by IneedAZ

I would have to think the numbers would have been higher if my MAT numbers weren't so high. Think my final dyno run had MAT Temps in the 160s, but still yielded 848hp/792tq on e50. On a normal basis I will keep it at e30 or e40. This is with stock high side. Think he said inj pw was 6.2 or 6.3 on the e50. My guess at e30 or e40 I will be 6 or less. Now I can phase out my boostane. Today the car didn't have any added, but I still have nearly 4 gallons left to use up, so will add some over the next several months. The one thing I forgot to ask him was how well did the low side pressure hold up.

IneedAZ · 10-01-2021, 08:08 PM

Quote:

Originally Posted by JSH

Sounds good. We'll tune mine on E85 over the next 2 weeks.

How much e do u think u will run? Even though he tuned mine at e50 I only plan to run e30 most of the time. I plan to do a log once I get down to e30.

Evansa22 · 10-01-2021, 08:21 PM

Quote:

Originally Posted by KingLT1

Nice gainz!!

His tuner targets .90 lambda...so keep that in mind. @ .82 like many tuners target he wouldn't be able to run any E on his setup.

Oh wow, ya mine says he goes for .80-.82. Makes sense, I had e37% and pw shot thru the roof for a second. Now I'm at 20-25% and the car is happy

10-01-2021, 04:50 PM	#1
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,111 View My Garage	Added e and exceeded my hp goal I would have to think the numbers would have been higher if my MAT numbers weren't so high. Think my final dyno run had MAT Temps in the 160s, but still yielded 848hp/792tq on e50. On a normal basis I will keep it at e30 or e40. This is with stock high side. Think he said inj pw was 6.2 or 6.3 on the e50. My guess at e30 or e40 I will be 6 or less. Now I can phase out my boostane. Today the car didn't have any added, but I still have nearly 4 gallons left to use up, so will add some over the next several months. The one thing I forgot to ask him was how well did the low side pressure hold up. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

10-01-2021, 06:52 PM	#8
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,111 View My Garage	Curious to what afr/ lambda Pray uses. When I looked at some dyno runs on YouTube it looked as he was between 12.7 and 13.0 __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

10-01-2021, 07:33 PM	#11
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,111 View My Garage	Wonder if this is still true as I found this written in 2017: Dynojet software uses 14.7:1 air fuel ratio to determine Lambda 1.00. If the fuel has oxygen in it as does e10 (3.5%), then you must factor in .959, which brings a 13:1 air fuel ratio down to 12.5:1. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

10-01-2021, 05:01 PM	#2
Evansa22 Drives: HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 808	Nice, so only cam upgraded to drive pump more? Would love to hear a sound clip

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