Dyno Jet vs Mustang dyno

bransdaman78 · March 29th, 2007, 10:25 PM

What would equal 400 rwhp on a dyno jet?

or is the "safe" common 400 rwhp benchmark come from a mustang dyno?

Basically im using a dyno jet and my tuner is a little power crazy so i want to real him in at around 400, but I know the dyno jet will read higher than that - i was just wondering if anybody knew more specifically what I should be around on a dyno jet.

bransdaman78 · March 31st, 2007, 01:16 AM

ok mods we need to advertise this forum.. nobody is here ??!?!?!

Darrell · March 31st, 2007, 06:17 PM

I've been told by a couple dyno operators that the Mustang dyno reads higher than any other out there and is the most innaccurate.

On any chassis dyno, make your base pulls and tune from there. Don't focus on a specific horsepower goal because it will change from dyno to dyno. Just focus on tuning the set up and getting the most out of it. The race track will be the real dyno.

bransdaman78 · April 2nd, 2007, 12:35 AM

ok so with my mods I should be look at around 250 whp, so i should look to gain 150 and leave it at that?

Darrell · April 2nd, 2007, 11:12 AM

Originally Posted by bransdaman78

ok so with my mods I should be look at around 250 whp, so i should look to gain 150 and leave it at that?

You should have that much power says who? I guess I don't under stand what you are saying about gaining 150. If similar combos to yours are making 250hp at the wheels then you may or may not make that much. There are alot of variables on a chassis dyno. They are a tuning tool, not a penis extender. A friend of mine has a 66 Chevy II with a 555 BBC. At one dyno he made 630hp at the wheels (give or take a few, I don't remember the exact number) but at another chassis dyno he made 567hp at the wheels.

bransdaman78 · April 2nd, 2007, 11:59 AM

well the mustang dyno is easily skewed - many tuners "sell rwhp numbers" My question was this, if my car is making 250 now on a given dyno, then I should look to gainanother 150 - giving me a total of 400 rwhp.

or just put on 10lbs w/ air to air cooler and it makes what it makes

Darrell · April 2nd, 2007, 06:23 PM

Originally Posted by bransdaman78

well the mustang dyno is easily skewed - many tuners "sell rwhp numbers" My question was this, if my car is making 250 now on a given dyno, then I should look to gainanother 150 - giving me a total of 400 rwhp.

or just put on 10lbs w/ air to air cooler and it makes what it makes

I'd make a base run on whatever dyno you go to next and go from there. Use your base run to tune with and note your increase. I really wouldn't be too concerned with how much power it made the last time you dynoed it.

March 29th, 2007, 10:25 PM	#1
bransdaman78 Regular Join Date: Mar 2007 Posts: 452	Dyno Jet vs Mustang dyno What would equal 400 rwhp on a dyno jet? or is the "safe" common 400 rwhp benchmark come from a mustang dyno? Basically im using a dyno jet and my tuner is a little power crazy so i want to real him in at around 400, but I know the dyno jet will read higher than that - i was just wondering if anybody knew more specifically what I should be around on a dyno jet.

March 31st, 2007, 01:16 AM	#2
bransdaman78 Regular Join Date: Mar 2007 Posts: 452	ok mods we need to advertise this forum.. nobody is here ??!?!?! __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

March 31st, 2007, 06:17 PM	#3
Darrell Feb 08 ROTM 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 7,389	I've been told by a couple dyno operators that the Mustang dyno reads higher than any other out there and is the most innaccurate. On any chassis dyno, make your base pulls and tune from there. Don't focus on a specific horsepower goal because it will change from dyno to dyno. Just focus on tuning the set up and getting the most out of it. The race track will be the real dyno. __________________ Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft

April 2nd, 2007, 12:35 AM	#4
bransdaman78 Regular Join Date: Mar 2007 Posts: 452	ok so with my mods I should be look at around 250 whp, so i should look to gain 150 and leave it at that? __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

April 2nd, 2007, 11:59 AM	#6
bransdaman78 Regular Join Date: Mar 2007 Posts: 452	well the mustang dyno is easily skewed - many tuners "sell rwhp numbers" My question was this, if my car is making 250 now on a given dyno, then I should look to gainanother 150 - giving me a total of 400 rwhp. or just put on 10lbs w/ air to air cooler and it makes what it makes __________________ 03 GT leather seats for sale or trade for racing seats, Looking to buy: subframes, tower braces, control arms, bypass/BOV, 42# injectors & MAF Trade/ Sell Predator 4 SCT (wrong part of the country)

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