tuned the race car today (2yr ago)

[SeriousSteve]

Outstanding.

 

[Canuckvolvo]

Unreal!
What rpm? (yes I know, the dyno plots will answer)
What CR?
43whp gain from 16-18psi, then only 27whp from 18-22. Head starting to choke things off?

 

[badvlvo]

so come forth with these dyno plots eh?

plots!

 

[Karl Buchka]

Wow, those look like some nice numbers. Plots please!

 

[Captain Bondo]

Wow, just wow man, the 405hp at 16psi impresses the crap out of me, from an 8v tractor engine...

Agreed. That is seriously impressive. Peter, what turbo are you running these days?

 

[linuxman51]

last i heard it was a 60-1

 

[Volvorules]

Head starting to choke things off?

HAHAHAHAHahahahhahahAHAHAHahhahah

You're joking, right?

 

[Captain Bondo]

HAHAHAHAHahahahhahahAHAHAHahhahah

You're joking, right?

Yeah- we are talking about a head that is doing like, 200whp NA. Doubt it is a restriction.

I would put money on it being the turbo reaching the upper right side of the compressor map. Hence the question about the turbo.

 

[suterman]

Thats an amazing price for the head considering what it can help achieve.

I wish my 8v was 405hp

pics!

 

[linuxman51]

Yeah- we are talking about a head that is doing like, 200whp NA. Doubt it is a restriction.

I would put money on it being the turbo reaching the upper right side of the compressor map. Hence the question about the turbo.

possibly intake manifold and throttle body

 

[stylngle2003]

those are sick numbers. i wanna see plots!

gotta wonder too about the system running out of efficiency. it's definitely not the head and cam

 

[740ATL]

That's amazing what headwork and cam can do for you. I would love to see dyno plots.

 

[volvo-slyder]

YAY Volvo!

 

[klr142]

spec on Pacman heads:

"they are about 3300 dollars for a 8v 531 head with complete custom works and porting. Includes 46/38 valves, custom enem cam shaft, shim under bucket lifters, dual valve springs..."

In this case I think they're 48/40s, and who knows what else... It's just REAL hard to rotate the camshaft on the head when it's not bolted down to an engine... Them lobes are HUGEEEEEEEEEEEEEEEEEEEEEEEE.

Awesome work Peter! I feel fortunate to have seen your car in person, next on the list is to see it in action at the track.

Seriously. Can. Not. Wait.

How sexy like does that 2.5 rev?

Mmmmmmmmmmmmmmmph. Way too sexy. I guess on the dyno it was like WHAMonce it hit the higher boost.

Unreal!
What rpm? (yes I know, the dyno plots will answer)
What CR?
43whp gain from 16-18psi, then only 27whp from 18-22. Head starting to choke things off?

8.2:1. Rpm, well, I wish he would've taken it higher, because from the looks of things it wants to pull to 7500 or maybe even higher, butttttt Peter wants to keep at least one engine together and strong for a good while, so... Same with the boost. Part of the reason for the smaller increase from the last increase in boost is because they richened it back up a bit during that jump to get back down to conservative afr's. Then there's also the completely stock intake manifold with a 59mm(if i remember correctly) MVP "big bore" throttle body.

I wish my 8v was 405hp

You mean 551hp?

possibly intake manifold and throttle body

Indeed my good sir.


It sounds so sexy. And just with the way it starts up, and revs, even before making any boost, just at a stop, mmmmmmmmmmmmmm. MMMMMMMMMMMMMMMMM!!!!!!!!!!!!

For those that hadn't seen a short snippet of nothing special before it was broken in and being smooth with the gas:
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/rHXvZGL-e4g&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/rHXvZGL-e4g&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>

 

[Yea Right]

First post has been updated

 

[Kuikka]

Yeah- we are talking about a head that is doing like, 200whp NA. Doubt it is a restriction.

I would put money on it being the turbo reaching the upper right side of the compressor map. Hence the question about the turbo.

My quess is just exhaust pressures rising a tad closer to boost, I'd say it's normal.

 

[Captain Bondo]

My quess is just exhaust pressures rising a tad closer to boost, I'd say it's normal.

Yes- that is what I am getting at. That would be primarily a function of the turbine housing. That is why I asked what turbo.

 

[84 Blue 240]

NICE!!! Torque curve looks awesome!

 

[242DownLow]

love the sound on that

 

[pat244ti]

That is beautiful Peter. A custom intake would probably help out a good amount.

**** this I'm gonna go work on my car.