Anybody else seen AFR 225 Heads in Person? 56K Beware!
11-09-2005, 10:44 PM
#7
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So what size motor you planning on putting those on? And is this setup going to be ready by next season? Man are there going to be some fast cars ext year.....11's will be slow. 
And I'm still struggling to get there. 
You bastards!!!
And I'm still struggling to get there. You bastards!!! Trending Topics
11-09-2005, 11:16 PM
#9
They are going on the Forged 370 that Futral Built me. I am going to run them right out of the box. It should be ready to go before Christmas... I have one more order of parts coming from SDPC. Just waiting on the head gaskets to finish the long block.
Ryan
Ryan
11-09-2005, 11:24 PM
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Originally Posted by Ryan K
They are going on the Forged 370 that Futral Built me. I am going to run them right out of the box. It should be ready to go before Christmas... I have one more order of parts coming from SDPC. Just waiting on the head gaskets to finish the long block.
Ryan
Ryan
Aren't the 225's a bit big for that little displacement? I thought they were built for big stroker motors? I guess if your running insane boost through them that would justify them..............
11-09-2005, 11:38 PM
#11
If I was running NA, they might be a tad large. Its really about bore. They don't work well on the 3.9" LS1's due to shrouding of the intake valve. However, since I am a 4.030 bore I don't really have the shrouding problem.
In fact if you are running ported LS1 casting heads, I would bet that your runners are bigger than 225cc.
Tony Mamo ran a set on his 383 (3.9" bore) and picked up peak HP, with a really small loss down low.
With a Forced induction motor pretty much all NA theory goes out the window. Even shrouding is less of a concern on a FI motor. With the Turbo, as soon as its in boost (2500-2600rpm) I'll make up any loss in lowend and then actually gain over a smaller head... FI is pretty much all about CFM.
In fact if you are running ported LS1 casting heads, I would bet that your runners are bigger than 225cc.
Tony Mamo ran a set on his 383 (3.9" bore) and picked up peak HP, with a really small loss down low.
With a Forced induction motor pretty much all NA theory goes out the window. Even shrouding is less of a concern on a FI motor. With the Turbo, as soon as its in boost (2500-2600rpm) I'll make up any loss in lowend and then actually gain over a smaller head... FI is pretty much all about CFM.
11-09-2005, 11:41 PM
#13
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Originally Posted by Ryan K
If I was running NA, they might be a tad large. Its really about bore. They don't work well on the 3.9" LS1's due to shrouding of the intake valve. However, since I am a 4.030 bore I don't really have the shrouding problem.
In fact if you are running ported LS1 casting heads, I would bet that your runners are bigger than 225cc. Tony Mamo ran a set on his 383 (3.9" bore) and picked up peak HP, with a really small loss down low.
With a Forced induction motor pretty much all NA theory goes out the window. Even shrouding is less of a concern on a FI motor. With the Turbo, as soon as its in boost (2500-2600rpm) I'll make up any loss in lowend and then actually gain over a smaller head... FI is pretty much all about CFM.
In fact if you are running ported LS1 casting heads, I would bet that your runners are bigger than 225cc. Tony Mamo ran a set on his 383 (3.9" bore) and picked up peak HP, with a really small loss down low.
With a Forced induction motor pretty much all NA theory goes out the window. Even shrouding is less of a concern on a FI motor. With the Turbo, as soon as its in boost (2500-2600rpm) I'll make up any loss in lowend and then actually gain over a smaller head... FI is pretty much all about CFM.
That's really awesome. I also saw your post on these heads in the LS1 section........congrats on finding them. Hope you got a good deal. So here's the kicking question........How much boost do you plan on running for next race season? And how much were you running at the end of last season? I just want to picture the difference I can expect.
I can't wait to see this beast run. 
11-09-2005, 11:50 PM
#14
I got a fantastic deal. I found them on Ebaymotors. Lets say I got them pretty much at cost. Highbid was $2116 with the $155.00 Upgraded springs that these had installed...
As for the Boost, I am running 10 +-.5psi. I have changed a few things and I plan on Dyno'ing at the same boost level to see what the other changes did HP wise before upping the boost to 15-16psi.
Ryan
As for the Boost, I am running 10 +-.5psi. I have changed a few things and I plan on Dyno'ing at the same boost level to see what the other changes did HP wise before upping the boost to 15-16psi.
Ryan
11-09-2005, 11:55 PM
#15
As far as Items changed go:
Forged Short block (370" Futral) Dropped CR from 9.4 to 8.9
AFR Heads
Better Turbo Manifold (updated, larger runners)
Accel DFI (not really a perfomance increase, just better tuneability)
Converter change from a too tight SC3000 (2400 Actual) to a PYE 3400
Rear axle changed to 3.50 vice the 3.70's now (Moser 9")
Thats pretty much it. There are a couple of suspension items too.
Ryan
Forged Short block (370" Futral) Dropped CR from 9.4 to 8.9
AFR Heads
Better Turbo Manifold (updated, larger runners)
Accel DFI (not really a perfomance increase, just better tuneability)
Converter change from a too tight SC3000 (2400 Actual) to a PYE 3400
Rear axle changed to 3.50 vice the 3.70's now (Moser 9")
Thats pretty much it. There are a couple of suspension items too.
Ryan
11-10-2005, 07:02 AM
#17
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Those babies are gorgeous Ryan! 
To think they have a machine that can do most of that now....amamzing! My exhaust ports & under the valves look similar, but my intakes are untouched, and DAMN, 2.08 intakes? 
Your combustion chambers look killer......got flow #s?
To think they have a machine that can do most of that now....amamzing! My exhaust ports & under the valves look similar, but my intakes are untouched, and DAMN, 2.08 intakes? Your combustion chambers look killer......got flow #s? 
Is that with the new T1,000,000 turbo? 