16G DYNO DAY+300whp@20psi

[boosted86]

went to the dyno on wed. made 299.1 at the wheels@ 20 lbs. going back on tues, to up the boost and see if i can get 340...im looking to see what some people are at with a 16g @20lbs? (and some dyno sheets if possible) to see if im on the right track. also, this was on pump 93. and about 80* outside.

 

[Black_Bullet]

I couldnt read the dsmlink files up above, but id really like to see your timing maps.
Honestly for pump gas those are some decent numbers. Realistically its not really so easy to break 300awhp on a 16g with AWD and only pump gas, especially if theres any imperfections in your tune or setup.

I take it you guys dont have any boost leaks, because when I was at the dyno a couple months ago I had a boost leak at my TB shaft seals and minor leak at the bov due to it not seating right and on 17degs peak timing and 10.8 AFR I only managed 271awhp and 304lbs peak torque on my e316g at 20psi on a completely stock motor besides the ARPs. Btw on 93 octane, and the dyno was called DynoMite; which the guy noted it reads lower than dyno jet and higher than mustang.

Unless my compression is way low, I should be over 300AWHP now considering Ive installed bc272s, Fp race manifold, Ive leaned it out to around 11.1 ish, ive added another 3 degs of timing above 6k and im running another 3 psi than I was when I dynoed. Just have to fix these boost leaks and Im going external gate and Maft and plan to redyno the car later in the summer.

I think with really good, and aggressive tuning, and no flaws in the setup with good bolt on mods, I think the average joe could achieve anywhere from 330-350 AWHP out of a E316g on pump gas.
Thats at least my goal being my car only needs 340awhp ish to run a low 12; high 11sec 1/4 with all out driving effort.

 

[SOADweskey]

The weekend before I dyno tuned my car I replaced my throttle body shaft seals and did a boost leak test. My car tested as boost leak free but there may still have been small one because it made a high pitched whistle at high boost on the dyno but we couldn't find anywhere it was leaking from.

My car does have slightly lower compression in cylinder 2 but it is still within 10% of the others.

 

[JayRolla]

To the OP you said you where at about 17*. I would lower that a bit so you see 14-15* and add some boost. That should get you a little more over 300whp. My buddy is running 24psi(16g) on a 1g and 91 but timing is max at 14*.

 

[boosted86]

To the OP you said you where at about 17*. I would lower that a bit so you see 14-15* and add some boost. That should get you a little more over 300whp. My buddy is running 24psi(16g) on a 1g and 91 but timing is max at 14*.

yea i tried that, but my car really didnt like that to much. we ended up with 280whp. at 22psi, and 15* of advance.

 

[Black_Bullet]

The weekend before I dyno tuned my car I replaced my throttle body shaft seals and did a boost leak test. My car tested as boost leak free but there may still have been small one because it made a high pitched whistle at high boost on the dyno but we couldn't find anywhere it was leaking from.

My car does have slightly lower compression in cylinder 2 but it is still within 10% of the others.

Well it could also be your mbc if its a bleeder style.
Anytime i boost leak I hear air coming out of the little bleeder hole on it and it was audiable on the dyno, therefore i suppose that means Ihave 3 boost leaks.

To the OP you said you where at about 17*. I would lower that a bit so you see 14-15* and add some boost. That should get you a little more over 300whp. My buddy is running 24psi(16g) on a 1g and 91 but timing is max at 14*.

Honestly imo; I dont think there will be much gain dropping 3 degs of timing for 2 psi, at least not on a 16g already on that level. I dont think anyone should have to run their peak timing that low with the way the 16g drops off in boost unless the motor is high compression.

I mean I may be wrong but at least from my experience you just keep increasing the boost but it will eventually get to the point were it will always fall to x amount of psi by redline,( i.e.19-22psi) therefore you just go more conservative with timing during the time the boost is at its highest and then start getting aggressive with the timing load when it starts to fall.

Id probably drop the timing a deg or 2 lower under 5500k and then increase the boost.
If you increase it to 24lbs and your motor flows well, its likely to already have fallen a bit lower by the time you reach 5500rpms; so it may not be much an increase in peak power but your torque should show up higher with the additional boost in the lower rpms, and you wont have to pull any timing up top. That way of doing it is possibly why when I dynoed my torque showed up much higher than my HP.

But if you can get more boost thru your peak power rpms without pulling too much timing then that should show as an increase in peak power obviously

 

[boosted86]

Well it could also be your mbc if its a bleeder style.
Anytime i boost leak I hear air coming out of the little bleeder hole on it and it was audiable on the dyno, therefore i suppose that means Ihave 3 boost leaks.




Honestly imo; I dont think there will be much gain dropping 3 degs of timing for 2 psi, at least not on a 16g already on that level. I dont think anyone should have to run their peak timing that low with the way the 16g drops off in boost unless the motor is high compression.

I mean I may be wrong but at least from my experience you just keep increasing the boost but it will eventually get to the point were it will always fall to x amount of psi by redline,( i.e.19-22psi) therefore you just go more conservative with timing during the time the boost is at its highest and then start getting aggressive with the timing load when it starts to fall.

Id probably drop the timing a deg or 2 lower under 5500k and then increase the boost.
If you increase it to 24lbs and your motor flows well, its likely to already have fallen a bit lower by the time you reach 5500rpms

hmm, well at the moment im holding 22lbs clean to redline. i suppose once i get up to 24 i might have the boost drop off issue. your method of adding timing once boost creeps down, is deff a smart one.ill keep that in mind on my next dyno run

 

[slvrDsm]

I just got back from the dyno 2 days ago... Tuned by Full FunctionTEC.. they have a mustang dynometer... i only put down 265/245 hp/tq... on my 16g spike around 21 but falls to about 19psi by redline... on pump 91 octane.. i we could only get like 10* of timing in it.. i really wish i could get more.. but its 1* away from seeing knocks... sucks.. but its pulls very nice and runs very well