OVS Timing Retard Filter (TRF)

[backcountryislife]

You're killing us here... You sound like a politician!!

You've got two products, the 2 deg unit & the 3 deg unit.

Why would you buy one over the other?

 

[harf69]

I think the best benefit would be being able to run the 10-11 head and not deto at lower elevation just a thought

 

[Eli]

I paid for mine a few days ago......cant go wrong for the price.

 

[WyoBoy1000]

OVS,

When you used the 3* and where able to turn it up on the same fuel did yours make more power and what was the octane and boost level on your kit you where able to run?

was the motor stock? (did it have diff compression) we need a base line.

 

[sweperformance]

The intake air temp is also a thing to have in mind, according to me.

 

[BigAir]

I have tested the three degree timing retard and it will let you run more boost on the same fuel you have been using. You need to remember The stock injectors will only supply fuel to support X amount of horsepower. There are big differences in boost numbers I can see in the different posts and that is the difference beteween turbo size, exhaust size and restriction and fuel system design. I can not tell you how much boost your specific system will run there are to many vairiables. You will have to do your own testing to see how much you can turn the boost up with the timing retarded on your own sled. The power is not all about boost numbers it comes down to the how efficiently your turbo system functions.

This post makes it sound to me like they haven't really tested the 2*, only the 3*.

 

[WyoBoy1000]

Thats what I got out of it

 

[Crusty82]

One question here for people to think about.

Would a 2012m800 with stock head on 6psi with timing on pg run safer than

a 2012m800 with 09 head on 6psi without timing on pg

09 head 12,5:1
12 head 12,8:1
(i think)

and which of the sled would likely produce more hp?

 

[WyoBoy1000]

depends on the kit and elevation

 

[av8er]

Mynewuseddoo i'm sure you had a ton more track speed at 13psi

than compared to 9psi, question is were you running higher octane, I'm assuming so. because octane is a limiting factor to PSI and HP. when I had my Boonie turbo i could run about 6.5-7psi on pump at 7k but if I cranked it any higher it would DETO bad and not run, when I filled it with 100ll AND CRANKED IT UP TO 9.5 psI yEEhaaa- damn caps lock I flunked typing class, thank god one of the cheerleaders gave me her timed writing to hand in.

If I plan on running either straight AVGAS or a 50/50 mix Pump premium/110 on 9PSI will I see any performance gain buying a 2 degree timing retard (OVS recommended) running 11PSI with the same fuel. I feel the average Joe would think Yes, but I feel it is a misconception because Octane is the limiting factor

 

[Tonysnoo]

Isn't the whole point of buying one of these to fix a problem with a setup? I don't think its going to be for everyone. I see a few scenarios that it might address:

1) HO motors, maybe this would save a head mod???
2) Better bottom end: could run a timing key for bottom mid and then retard back to normal at full boost?
3) Pump gas: a little safety factor when run at the upper limit of available gas?

I think it's just another tool available to expand our setup(if needed) I doubt that anyone could have tested every scenario it might be useful in.

 

[turbo800]

Ok, don't hate on me here...

Retarded timing is common in the sport compact world. For a guy that's set on no more than pump premium, it works. Its been dyno proven that you can offset (retard) timing, up boost pressures, all staying on a constant fuel (premium) and put down more HP.

If your fuel supply system can't handle any more, that's a completely separate issue.

 

[Eli]

But if timing is not optimal, I think it would contribute to lower octane limits. Proper timing would possibly allow lower cylinder pressures spikes at the same hp rating.


Sent from my iPhone using Tapatalk

 

[WyoBoy1000]

From what I got it was developed for the pro rmk to get the turbo kits to work without hitting the det sensor/ loosing motors.


Octane is not necessarily the limiting factor, it may be on the stock timing, but you can retard the timing and run higher boost and make more hp on pump than you could without it.

like jeff said,
be able to run higher comp.
advance timing on bottom and then retard on top
run more boost on pg

I think what av8tor is getting at: If you run say 11psi with a little race gas on the stock mapping vs running 11psi with the timing retarded on pump. Then the stock mapping with rg will make more power. But the on pump gas with retarder it will make more power then if you did not retard it.

So
stock kit with rg - most power at 11lbs
pg with retard - more power at 11lbs
stock kit with pg - can't run 11lbs so at 8-9lbs it makes less power.

Thats how I see it and maybe it will make sense.

 

[backcountryislife]

Octane is not necessarily the limiting factor, it may be on the stock timing, but you can retard the timing and run higher boost and make more hp on pump than you could without it.


I think what av8tor is getting at: If you run say 11psi with a little race gas on the stock mapping vs running 11psi with the timing retarded on pump. Then the stock mapping with rg will make more power. But the on pump gas with retarder it will make more power then if you did not retard it.

So
stock kit with rg - most power at 11lbs
pg with retard - more power at 11lbs
stock kit with pg - can't run 11lbs so at 8-9lbs it makes less power.

Thats how I see it and maybe it will make sense.

OK, if it can make a PG setup make more power (more boost on same fuel)
then it can make more power on the same mix compared to not running it.

Yes, 11psi with it, and 11psi without it on same fuel... less power with, but that's not the comparison in my eyes.

If I, for example, use 2 gal of 116 (what I run to hit 14 psi, only works if I keep it taped, 3/4 will det) and run 12.5 which is all I can run to keep away det in an all day type of riding, then I'd hope I could run 13.5 or so with the module, and yes, I'd make less power than 13.5 without it, but I'd make more power than the 12.5 I'd think.

When I add more octane, I don't like the bottom end, so I prefer to run a mix, if this lets me run higher boost, or slightly less octane, It sure seems like a win win.

 

[WyoBoy1000]

That is pretty much what I was saying, in a different way.

 

[backcountryislife]

Still seems like it will be worth it to me, even if it just gets rid of the little spot where I was hitting det before so I can consistently run the boost I want, I'll be stoked.

Talked to Garr yesterday btw hoping for a better clarification... still pretty confused.

 

[WyoBoy1000]

I think it will be a plus

 

[Going West]

Its only 80 bucks try it and see, if it doesnt work your not out too much. I'll be running timing control this year, I think its a win for sure.

 

[WyoBoy1000]

I plan on trying it.