ok, so i had the reflash on my car as a band-aid(if you can call it that) so it would make it to the bash, and now with all the power i should be making its more like a ball and chain.
my question is this, since the 2bar map sensor is in there would it be more difficult to use that with hpt or would it be wise to pull it and rewire the factory map and iat in?
thanks
Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla
What kind of boost are you planning to run?
I have found that if you are running more than 12-15 psi use a 2 bar sensor for better timing tuning in the higher boost range. If running up to 12psi (maybe 15) use a 1 bar map.
FU Tuning
Your running an eco? Go hpt + fmu...... you can't use a 2 bar map sensor with hpt and the eco. and the fake 2bar isn't worth your time.
K. Vega..Mr. M62 L61 himself. wrote:Your running an eco? Go hpt + fmu...... you can't use a 2 bar map sensor with hpt and the eco. and the fake 2bar isn't worth your time.
x 2
You'll need the stock MAP sensor back in.
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Hahn Stage II - Mitsu TD06-20g |3" Turbo-back Exhaust | 61mm Bored TB |
HP Tuners | Innovate WB02 | Spec Stage 3 | Team Green LSD | TurboTech Upper | Full Addco Sways | Sportlines & Yellows |
wow I read this whole post wrong, I thought you were speaking in reference of TUNING a 2 bar tune using the 2 bar map sensor, my fault. I'm pretty sure you can run the same map sensor.
John Higgins wrote:What kind of boost are you planning to run?
I have found that if you are running more than 12-15 psi use a 2 bar sensor for better timing tuning in the higher boost range. If running up to 12psi (maybe 15) use a 1 bar map.
i will be running 15-25psi..
Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla
jmarks82 wrote:Spectra EMS...
Or MS...
Thats what i would do.
not exactly what i wanna do, im not a fan of owning a standalone car
Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla
what turbo are you running? also external w/g or internal?
K. Vega..Mr. M62 L61 himself. wrote:what turbo are you running? also external w/g or internal?
garrett 60trim with 38mm wg
Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla
Hpt no if ands or buts. HPT + Fmu = Answer to no actual speed density tuning with a turbo charged ecotec.
K. Vega..Mr. M62 L61 himself. wrote:Hpt no if ands or buts. HPT + Fmu = Answer to no actual speed density tuning with a turbo charged ecotec.
I tend to agree from everything I have done and seen. I don't think an FMU is necessary with low boost (If not needed why add reliability issues?).
The problem becomes when you have maxed out your VE offset and can no longer use HPT to add fuel without losing low-end tuning/driveability.
At that point you need an FMU to throw in the extra fuel for full boost.
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Hahn Stage II - Mitsu TD06-20g |3" Turbo-back Exhaust | 61mm Bored TB |
HP Tuners | Innovate WB02 | Spec Stage 3 | Team Green LSD | TurboTech Upper | Full Addco Sways | Sportlines & Yellows |
K. Vega..Mr. M62 L61 himself. wrote:wow I read this whole post wrong, I thought you were speaking in reference of TUNING a 2 bar tune using the 2 bar map sensor, my fault. I'm pretty sure you can run the same map sensor.
I'm kind of confused about your comments. You can use a 2 bar sensor with hpt and it will work correctly when you fake the 2 bar tune..and it is worth your time. I've done it and had it working great for about 80,000 miles with no issues. Actually mine was with the 2.5 bar sensor, but either way, as long as the math is right it should be fine.
well any input on a fmu?
Built&Boosted moar
04 Cavalier Turbo r.i.p my baby
2nd place 2009 GM tuner bash qwick 8--holla
BlackEco wrote:K. Vega..Mr. M62 L61 himself. wrote:Hpt no if ands or buts. HPT + Fmu = Answer to no actual speed density tuning with a turbo charged ecotec.
I tend to agree from everything I have done and seen. I don't think an FMU is necessary with low boost (If not needed why add reliability issues?).
The problem becomes when you have maxed out your VE offset and can no longer use HPT to add fuel without losing low-end tuning/driveability.
At that point you need an FMU to throw in the extra fuel for full boost.
Tis True
John02 wrote:K. Vega..Mr. M62 L61 himself. wrote:wow I read this whole post wrong, I thought you were speaking in reference of TUNING a 2 bar tune using the 2 bar map sensor, my fault. I'm pretty sure you can run the same map sensor.
I'm kind of confused about your comments. You can use a 2 bar sensor with hpt and it will work correctly when you fake the 2 bar tune..and it is worth your time. I've done it and had it working great for about 80,000 miles with no issues. Actually mine was with the 2.5 bar sensor, but either way, as long as the math is right it should be fine.
yea you can use a 2 bar if you want but its not necessary. Your giving yourself extra work for no reason. If your tune is keen and your following the input your histograms are feeding you, a fake 2 bar isn't essential at all. The stock one bar will be just fine.
Matt Gorman(ECOjunkk) wrote:well any input on a fmu?
Cartech 2025
FMU's are GHEY.
Go back to the OEM 1bar program w/ HPT to tweak it, then get the Hahn Port Fueler man. It works, and it'll work better then any hack job FMU.
FMU = 90's tuning when no software for boost was really available.
-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party
SpyhunteR wrote:FMU's are GHEY.
Go back to the OEM 1bar program w/ HPT to tweak it, then get the Hahn Port Fueler man. It works, and it'll work better then any hack job FMU.
FMU = 90's tuning when no software for boost was really available.
$100 dollars vs. $1800 hmmmm
By that logic your entire car is ghey, so go buy a new Corvette because a Grand Am is definitely 90s technology.
BTW FMUs have been around since at least the 1940s when the Nazi's were using them with Bosch fuel injectors to dominate the skies over Europe.
And there was no "tuning software" until after the 90s? errrrr right......
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Hahn Stage II - Mitsu TD06-20g |3" Turbo-back Exhaust | 61mm Bored TB |
HP Tuners | Innovate WB02 | Spec Stage 3 | Team Green LSD | TurboTech Upper | Full Addco Sways | Sportlines & Yellows |
and the nazi's lost.
-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party
hey vega, i got the plug for the stock 1 bar but i dont know what to wire it into lol, so you think i can just use the tmap instead? might be a bit easier for me so i dont have to mess with wires i am unfamiliar with..kinda wanna try and tune my car with hpt this weekend but its probably too cold..
12.33 @ 111.67 mph [Oct 2009]
Dyno'd on 08/02/09 - Mustang Dyno:
327.6 WHP 333.6 WTQ [10.1 AFR]
my fault bout that bro, I'll give you a call fri. classes work and family issues got me caught up. But hey we'll get that one bar in there in.
SpyhunteR wrote:and the nazi's lost.
Wow someone paid attention in History class!
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Hahn Stage II - Mitsu TD06-20g |3" Turbo-back Exhaust | 61mm Bored TB |
HP Tuners | Innovate WB02 | Spec Stage 3 | Team Green LSD | TurboTech Upper | Full Addco Sways | Sportlines & Yellows |
I'd agree with K. Vega on this one
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
