Capri on the dyno

[Martin0660]

I have been struggling to get my junk to a good baseline this year with the crappy weather, and hit or miss traction at the track ... So I drug the car out and got it on a dyno ...

I never touched the boost, this was all at 25 psi ... the primary thing for me was to get the AFR dialed in as it's been fat. That doesent hurt power so much on my stuff, but it's sloppy. Got the AFR where I'm pretty happy at 11.5:1, still safe, but not so fat (was 10.7:1 ish).

Also played a little with ignition timing ... Added a little and it likes it, but didnt have enough time to do a full work through of that ... It's okay, but still safe. Power on the table there yet.

Also played with my cam timing to dial that in to my shift point and RPM drops.

Made 10 pulls, really beyond happy with what I found and learned, got tons of data to work through, and got a solid base set-up to go forward :D Anyway, on to the pictures ...

Dyno plot (as found is dotted, as changed is solid) ...



Column 1 is the final set, column 2 is the baseline pull ... It made 365 RWHP and 358 Ft/lbs on a Mustang Dyno ... not really interested in the peak numbers but found 20 HP, a little torque, and moved adjusted it to where it fit my shift points better.

[Martin0660]

And a few videos ...

Engine during a pull ...

[ame="http://s1192.photobucket.com/albums/aa324/martin0660pb/?action=view&current=Capri3.mp4"]Capri3.mp4 video by martin0660pb - Photobucket[/ame]

This is interesting, watch the hump hose at the throttle body, and especially the tee at the blow off valve ... I also need to figure out a torque strap ...

[ame="http://s1192.photobucket.com/albums/aa324/martin0660pb/?action=view&current=Capri2.mp4"]Capri2.mp4 video by martin0660pb - Photobucket[/ame]

And the ProStars going around :D

[ame="http://s1192.photobucket.com/albums/aa324/martin0660pb/?action=view&current=CapriDyno1.mp4"]CapriDyno1.mp4 video by martin0660pb - Photobucket[/ame]

[Troll]

looks like 25-30 hp and ft.lbs. from just tuning? good work, indeed.

now, tell me more about the video at 20 of 30.

[Martin0660]

looks like 25-30 hp and ft.lbs. from just tuning? good work, indeed.

Thanks, really happy with it now after being frustrated most of this season (mostly this f'ing rain)

now, tell me more about the video at 20 of 30.

I'm taking this to the big off topic thread ;)

[yeahloh95]

wow great numbers bob and glad to see you picked up some power from the dyno time i know what you mean about the rain :(

[Balaska347]

Are you going up today and tomorrow Bob?

[Martin0660]

In for both Mike.

[Balaska347]

Cool Ill keep an eye on you, I look forward to seeing some 11's

[Martin0660]

I look forward to seeing some 11's

I doubt it's there yet, happy with low 12's tonight on slicks and same tomorrow on DOT's in trophy.

[THE BIG KOALA]

Good numbers Bob glad to see your gettin things worked out.

[Ares]

Poor coupler is crying mercy.

[sutyak]

Great work! Yeah that engine moves a lot. :)

[Martin0660]

Capri just went 11.83

[Martin0660]

11.79 @ 114, threw away a .009 light know it was going to breakout on a 11.81 dial.

[THE BIG KOALA]

SWEET and congrats. that is your new best right?

[no1sirbutler]

AWESOME!!!!! glad to see your getting the results you want our of it

[somethingclever]

congrats Bob...that thing is making great power

[Martin0660]

Thanks all ... Greagt experience with dyno tuning this thing and then it following up with track numbers ...

Ultimately it was a great night ...

1st pass out it slipped the snot out of the clutch. Track was loaded with bite, and I had too much hook in it ... I backed the firewall adjuster off, and aired up the tires hoping to hit them a bit. I'm going to have to deal with clutch for sure, but the car responded and went and ran it's best ever ...

60' - 1.58 - This is still a best (previous best was 1.59)
1/8th was 7.51 at 91.99
1/4 was 11.83 at only 100 mph (strange here)

We got a third time trial tonight ...

60' - 1.63 (didnt add air to air bag and it rolled on RR)
1/8th - 7.56 at 92.25
1/4 - 11.86 at 114.04

So I added air to my air bag, let 1 psi out of the tires and threw a 11.81 on the car hoping it would stick ... Car went:

60' - 1.61
1/8th 7.50 ay 92.36
1/4 - 11.79 at 114.39

The bracket racers here will love the timeslip ... I got out past 1000' and he was at my door. I smacked the tree (was all over it tonight), and had it covered, even if a close race, and ran it out the back door knowing it was going to break out ... but I got the timslip with a new best ... I would have killed myself if I would have braked and still lost. Timeslip for reference ...

[Ares]

Nice runs Bob. LOL I did that 3 years ago in final round of a no box race. Was .002 and went under by .01

I see there is mph at 1000' Thats new.

[Martin0660]

I see there is mph at 1000' Thats new.

yes, they was running the Nitro cars to 1000' like NHRA ... You should have seen the amount of VHT they sprayed on that track today / tonight ... The guy sprayed the water boxes past the traps ... National event prep for the win.