Dyno Results

[ZR-1Rookie]

Hi All,

Got my Z Dyno on yesterday. Here was the best results.

317 hp
328 TQ

Mods:
Flowmaster
Computer

Does Anyone else have dyno results?????????

[Jeffvette]

Little lower than I would expect. But it may also be the high altitude.

[Kevin]

i was going to say that they sound a bit low to me also

[We Gone]

Little lower than I would expect. But it may also be the high altitude.

just as a referance..91

Stock was 326rwhp

Mods:
Flowmaster & chip
339rwhp
346tq

[32valvZ]

Its my unrstanding that there is some kind of formula to calculate how much HP is lost per 1000' of altitude. I cant remember the figure per thousand ' though......anyone know??

[Paul Workman]

Considering the altitude, I'd say that is probably typical, all things considered.

I lived in Bailey CO (8500 feet) and I could tell a significant difference just between Denver (5280' amsl) and 8500', to say nothing of comparing my 95 LT1 coupe at 600'!

Altitude is a big concern for me and my plans to move to CO to live. But, I guess all things being relative, performance will remain the same, compared to other cars (except for turbo or SC cars!).

P.

[XfireZ51]

Considering the altitude, I'd say that is probably typical, all things considered.

I lived in Bailey CO (8500 feet) and I could tell a significant difference just between Denver (5280' amsl) and 8500', to say nothing of comparing my 95 LT1 coupe at 600'!

Altitude is a big concern for me and my plans to move to CO to live. But, I guess all things being relative, performance will remain the same, compared to other cars (except for turbo or SC cars!).

P.

Paul,

There's your answer. Forced Induction.

[jmascharka]

Did mine a month ago at just above sea level. 70 deg. Dynojet Dyno.

FULL POWER
364.4 hp
345.05 lbft

NORMAL
221.89 hp
276.37 lbft


92 ZR-1
B&B
Top End porting
chip

[Aurora40]

What kind of dyno was it?

[HADI-ZR1]

I hear that Dyno to other Dyno become different...:icon_scra
and also in which State you did that, as we know The altitude can affect too.

Since you live in Colorado, then due to reduction in atmospheric pressure attend to decreased partial pressure of oxygen,
then your engine HP normaly reduced. :)

[95ZR1#418]

Its my unrstanding that there is some kind of formula to calculate how much HP is lost per 1000' of altitude. I cant remember the figure per thousand ' though......anyone know??

HP LOSS= (Elevation x 0.03 x HP@SEA LEVEL)/1000

Works out that 3%(0.03) times your HP= loss per 1000' :D

I don't have a sea level number for my car so my guestimate is:
My car dyno'd at 376.1 HP @ 2320'
376.1 x 0.03 = 11.28 HP loss per 1000'
Therefore 11.28 x 2.32 = 26.17 HP loss @ 2320'

So supposedly at sea level my car should dyno @ 402.27HP. I hope to dyno it at Jeffs this Summer so we'll see......:cool:

[flyin ryan]

conversion factors: Denver 5800ft.
convert to sea level E.T x .9276
MPH x 1.0773
convert to altitude E.T. x 1.0781
MPH x .9282

Ananconda, Montana 5100ft.
convert to sea level E.T. x .9367
MPH x 1.0675
convert to altidude E.T. x 1.0676
MPH x .9368

[32valvZ]

conversion factors: Denver 5800ft.
convert to sea level E.T x .9276
MPH x 1.0773
convert to altitude E.T. x 1.0781
MPH x .9282

Acton, Montana 5100ft.
convert to sea level E.T. x .9367
MPH x 1.0675
convert to altidude E.T. x 1.0676
MPH x .9368


Denver is 5280' :)

[flyin ryan]

Denver is 5280' :) um... ya i know it is. NHRA's correction factor for Bandimere, they call Denver, is 5800ft. i'm just relaying their information:neutral: .

[32valvZ]

um... ya i know it is. NHRA's correction factor for Bandimere, they call Denver, is 5800ft. i'm just relaying their information:neutral: .

Ok, that makes sense. Bandimere is in Morrison and probably is 5800'. :cheers:

[flyin ryan]

i'm not sure where this is in relation but...
Grand Junction, CO 4800ft.
convert to altidude E.T. x .9520 MPH 1.0455
convert to sea level E.T. x 1.0504 MPH x .9565

maybe this is closer for you:)

[32valvZ]

i'm not sure where this is in relation but...
Grand Junction, CO 4800ft.
convert to altidude E.T. x .9520 MPH 1.0455
convert to sea level E.T. x 1.0504 MPH x .9565

maybe this is closer for you:)


Actually Grand Junction is on the western slope where it starts to decend in altitude and plataeu. I live right at 5300'. Thanks for the formula :cheers: