443 whp hp on 93 octane only

[Mike T]

I just came back from the dyno session and I am still very surprised. With 93 octane only the car made 394 whp on a stock cat back exhaust system and a walker stock style single muffler! The final pull was 443 whp @ 22.4psi with zero knock! The final pull was with open exhaust (no changes were made to the tune) but it did pick up psi.

I will upload PL files, dyno sheets & the video that the shop recorded.

 

[Flyin Brian]

Great numbers! What compression ratio are you running?

 

[psycho6cyl]

congrats

 

[ShaunDonWe2]

Nice


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[Mike T]

This was the PL screen shot where it peaked @ 443 whp. The TPS was low because this is the same moment that the dyno tech got out of it when he saw 23 psi on my boost gauge. Just prior to this shot DC was 92.7%.

 

[Mike T]

Great numbers! What compression ratio are you running?

I did a few things to the heads that changed the CR a bit but it should be close to 8.5:1

 

[BARRACUDA1968]

That's impressive! You must have the quench dialed in right.

 

[turbo nasty]

What was the AMB air temp?

 

[Red C5]

Very nice numbers!

 

[gn-t-type]

22psi on 93 no knock ????

 

[gn_steve]

22psi on 93 no knock ????

X2 ????


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[Mike T]

22psi on 93 no knock ????

I knew it would tolerate high boost on pump gas because I've ran 21 pounds of boost many times in overdrive with very minimal or no knock. The dyno tech was very reluctant to make the first pull @ even 20 psi (he's a good guy and didn't want me to break it) but after a complete inspection of the car and a review of a few prior PL files he agreed just to humor me. Before it was over with he recorded 23 psi on my gauge with his iPhone and the PL backed it up.

 

[Mike T]

That's impressive! You must have the quench dialed in right.

I'm starting to think so too but probably the most credit should go to Bob & Eric for their chip.

 

[Emiliano Lago]

very nice man congrats

 

[Mike T]

What was the AMB air temp?

I am going to guess that it was about 75-80 @ 9am this morning. The dyno runs are on a flash drive that I will need to download a program to open them with.

 

[turbo nasty]

18 degrees of timing and the FMIC are contributing factors to getting away with this.

 

[Mike T]

18 degrees of timing and the FMIC are contributing factors to getting away with this.

I agree it's a few things. Now I'm curious with the current tune where knock would start.

 

[turbo nasty]

USER WARNING.....Preceeding further may results in a knock knock whos there joke

 

[Mike T]

You are exactly right! But if money wasn't an object (and believe me it is) it would be interesting to see if it would take another pound or two. BTW I'm not overly impressed with the hp to boost ratio but to know that I did it on 7-11 gas puts a smile on my face.

Run 3 was through single stock type muffler and run 4 was open exhaust.

 

[Boost231]

TPS @ wot is low

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