Hey martin@tick
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Staging Lane
Joined: May 2013
Posts: 65
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530hp/510tq on a land and sea dyno. He said it reads 7% lower than a dynojet. Nice flat torque and power curve. Peak hp was at 5800 and held it to 6300. We didn't pull past that, it just leveled off and didn't nose dive. Considering it reads lower, your at about 570 hp. Not bad for a dual plane, stock casting head and not a giant cam. Held at least 450 fp of tq from 2900 to 6100. And at least 500 from 4000 to 5000. I'll see if I can post the graph.
Last edited by matt k; Jan 18, 2014 at 10:28 AM.
Like I said on the phone Matt, we could of put more cam and a better intake on it and pushed the peak numbers up 40-60 numbers.
That wasn't what you wanted though. An easily drivable combo that produced a flat torque curve across the operating range that shifts at 6400rpm was what you told me you wanted.
I think we hit the nail on the head.
That wasn't what you wanted though. An easily drivable combo that produced a flat torque curve across the operating range that shifts at 6400rpm was what you told me you wanted.
I think we hit the nail on the head.
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Staging Lane
Joined: May 2013
Posts: 65
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Update............
After much changes and dyno runs and changing cams, intakes, checking clearances, and other theories. We were low on power and finally changed the heads to afr 230s. With those heads and a dual plane intake it made 591hp @ 6000 and 574tq @ 4600. Then we put on a Vic jr and made 601hp @ 6100 and 556tq @ 5300. Martin helped along the way and was great to deal with.
After much changes and dyno runs and changing cams, intakes, checking clearances, and other theories. We were low on power and finally changed the heads to afr 230s. With those heads and a dual plane intake it made 591hp @ 6000 and 574tq @ 4600. Then we put on a Vic jr and made 601hp @ 6100 and 556tq @ 5300. Martin helped along the way and was great to deal with.
Very disappointed with AI on this deal to be honest. Gaining 60hp just by swapping the heads is mind blowing. If I had not been in on the entire process of testing different cams, manifolds and carbs on this engine I would of never believed that it was possible or plausible.
I am however very glad that Matt now has the power he should of had from the beginning.
I am however very glad that Matt now has the power he should of had from the beginning.
Very disappointed with AI on this deal to be honest. Gaining 60hp just by swapping the heads is mind blowing. If I had not been in on the entire process of testing different cams, manifolds and carbs on this engine I would of never believed that it was possible or plausible.
I am however very glad that Matt now has the power he should of had from the beginning.
I am however very glad that Matt now has the power he should of had from the beginning.
Was the AFR's out of the box? Or Ported?
Edit - Just read again this was on a over 4.00" bore engine maybe AI's will be fine on under 4.00" bore
Great numbers on build!!!!!
Last edited by MMorgan9812; Oct 9, 2014 at 12:23 PM.
Nice matt K 
I chased 50hp. My motor was in the car so it made the process difficult. I remember the day I'm starring @ the motor, the headers were off as I was swapping out the clutch. I'm looking at the heads thinking it's not that bad to take em off @ that point......I had covered all the other bases. Off with the heads, had them flowed, replaced them & it all came together. Same dyno & no other changes to skew the results.
My cylinder heads were not AI btw, just sharing the feel good story with matt K
I chased 50hp. My motor was in the car so it made the process difficult. I remember the day I'm starring @ the motor, the headers were off as I was swapping out the clutch. I'm looking at the heads thinking it's not that bad to take em off @ that point......I had covered all the other bases. Off with the heads, had them flowed, replaced them & it all came together. Same dyno & no other changes to skew the results.My cylinder heads were not AI btw, just sharing the feel good story with matt K
Thread Starter
Staging Lane
Joined: May 2013
Posts: 65
Likes: 0
Nice matt K I chased 50hp. My motor was in the car so it made the process difficult. I remember the day I'm starring @ the motor, the headers were off as I was swapping out the clutch. I'm looking at the heads thinking it's not that bad to take em off @ that point......I had covered all the other bases. Off with the heads, had them flowed, replaced them & it all came together. Same dyno & no other changes to skew the results.
My cylinder heads were not AI btw, just sharing the feel good story with matt K
I chased 50hp. My motor was in the car so it made the process difficult. I remember the day I'm starring @ the motor, the headers were off as I was swapping out the clutch. I'm looking at the heads thinking it's not that bad to take em off @ that point......I had covered all the other bases. Off with the heads, had them flowed, replaced them & it all came together. Same dyno & no other changes to skew the results.My cylinder heads were not AI btw, just sharing the feel good story with matt K
Sweet! One thing that was very apparent with mine was tuning. It did not matter where you went with the AFR, pig bloody rich or melt down lean the power was low. I never did a tear down as the short block was the only thing that seemed correct, but a cam change & a many other things. I was told by some big names to chase dyno's until I seen the numbers I was happy with.