Should I get a tune?

[Laurence Dunn]

Going to get it on a Dyno soon and see what I've got....

 

[whitmanink]

Going to get it on a Dyno soon and see what I've got....

if thats the case lets play youre whp,,
im gonna say 275-286 rwhp

 

[Dino Dino Bambino]

Going to get it on a Dyno soon and see what I've got....

With long tubes, midpipe, and tune alone I'd expect something like 295rwhp & 315rwtq on a Dynojet. Might be more like 275rwhp & 295rwtq if it's a load type dyno.
These numbers are for a manual transmission. Subtract another 20 from those numbers if it's an automatic.

 

[whitmanink]

With long tubes, midpipe, and tune alone I'd expect something like 295rwhp & 315rwtq on a Dynojet.

with lito tune

 

[Squirrely]

Is it a stock automatic? Ill say 265

 

[GriffX]

with lito tune

No tune can change the volumetric efficiency of the engine so mass air flow in grams per second x 1.2 is the metric horse power as a good estimation.

 

[Dino Dino Bambino]

No tune can change the volumetric efficiency of the engine

But it can improve the combustion efficiency of the engine and allow it to make more power with the same volume of air.

 

[whitmanink]

But it can improve the combustion efficiency of the engine and allow it to make more power with the same volume of air.

thank you for beating me to the punch brother

 

[whitmanink]

No tune can change the volumetric efficiency of the engine so mass air flow in grams per second x 1.2 is the metric horse power as a good estimation.

so wharts your guess on his rwhp?

 

[Kev555]

I think the Lito map is really more about the better driving experience for a nearly stock engine unless of course you have a lot of bolt on parts or a blower. I asked him out of curiosity what the expected change in BHP would be for mine and this is the answer I received which seems very honest- " Well.... that depends... everybody wants certainty on things like this and what makes it easy to lie about it, but the truth is that it depends... "

 

[GriffX]

so wharts your guess on his rwhp?

There are so many correction variables on a dyno, your guess is as good a mine, but with only long tube exhaust and no CAI, my guess is 315 +-3 HP crank. (262 g/s airflow)
In general I like more real values like 40-80 MPH in 4th gear or so.

 

[Kev555]

I think the Lito map for me is really more about the better driving experience for my nearly stock engine. I asked him out of curiosity what the expected change in BHP would be and this is the answer I received which seems very honest and makes perfect sense.
LITO-" Well.... that depends... everybody wants certainty on things like this and what makes it easy to lie about it, but the truth is that it depends... Drivability, yes, economy... not much and power, some. I know that me saying that I've sent you a +40HP tune would be better but it would not be true, what is true is that with data logs we can set it where it wants to be"

 

[Dino Dino Bambino]

In general I like more real values like 40-80 MPH in 4th gear or so.

Mine has stock 3.55 (39/11) axle gears, 255/45R18 tires (770 revs/mile), and 60mph in 4th = 2730rpm (22.0mph/1000rpm). In 4th gear my times (two way average in opposite directions on same level stretch of road, corrected for vehicle weight with full tank of gas and SAE J1349 weather conditions to maintain consistency) are as follows using a GPS race timer app:

30-50mph 4.1 secs
40-60mph 4.1 secs
50-70mph 4.2 secs
60-80mph 4.3 secs
70-90mph 4.3 secs
80-100mph 4.4 secs
90-110mph 4.6 secs

From 1300rpm the engine just pulls and pulls with a very linear response. Exactly what I want from a grunty V8.