521 bbf updates

Hi, I have a stock 521 bbf crate engine making 600hp in a 84 thunderbird(2350 with me on it) with a glide and 4.56 gears,
and I want to make it some updates for a lower E.T.
The engine has 10.0:1 compression,SCJ heads Combustion chamber volume is 72cc(not ported),ford racing solid roller mechanical camshaft,Valve lift is .640" intake and exhaust. Duration at .050" is 254 degrees intake and 258 degrees exhaust, victor single plane intake with with a chuck nuyten dominator.

My plans are:
1.-I want to change to a comp cam, do you have any suggestions?
2.-What do you think is a best option(gain/cost),
bore to 4.5(now is 4.39) to make it a 547ci, or
porting heads and intake?
with wich option I would have more gains and how much do you think it would cost me?

And the other thing, do you recommend me changing to a rons alcohol injection system? right now im running with vp 112, would I have better results? hp or E.T.

Im sorry if i missed it what does it run ?

the best E.T. was 10.04 1/4mile, with rmp limiter 5000rpm at launch and 6500rpm at the end, shifting 6200 and with 4.88 ring and pinion

A Comp Cams XR292 is a great old standby upgrade in those.

I’b back off the fuel too don’t need 112 in that engine

Having the heads ported and updated is worth the $$$ imo too.

X2 on porting. Are you running C-12 or some other version. C-12 is 108 motor octane, and as stated, still too much for a 10 to 1 engine, just a waste.

yes, is vp c-12, sorry about that, do you think that with a rons system would have better E.T.s?
How much do you think it would be for porting heads and intake? around 1200?

X2 on the porting. More cam will also help open up the flow path, which equals more power (generally).
What size headers are you running on it??

dfree383 wrote:A Comp Cams XR292 is a great old standby upgrade in those.

Was a very popular mod in that motor , From memory took it up near 700

I'd have to see if i can find the article but it was 702HP , 725 Ftlb from memory

frankcons87 wrote:Hi, I have a stock 521 bbf crate engine making 600hp in a 84 thunderbird(2350 with me on it) with a glide and 4.56 gears,
and I want to make it some updates for a lower E.T.
The engine has 10.0:1 compression,SCJ heads Combustion chamber volume is 72cc(not ported),ford racing solid roller mechanical camshaft,Valve lift is .640" intake and exhaust. Duration at .050" is 254 degrees intake and 258 degrees exhaust, victor single plane intake with with a chuck nuyten dominator.

My plans are:
1.-I want to change to a comp cam, do you have any suggestions?
2.-What do you think is a best option(gain/cost),
bore to 4.5(now is 4.39) to make it a 547ci, or
porting heads and intake?
with wich option I would have more gains and how much do you think it would cost me?

And the other thing, do you recommend me changing to a rons alcohol injection system? right now im running with vp 112, would I have better results? hp or E.T.

WHICH 514 crate engine from FRPP do you have ...? Marine rods or H-beam rods ...?
They offered both as the engines got updated.

Is this a race car or a street,strip car ...?

C12 is a waste of money at 10.4/1 compression. VP110, (not C10), is more than needed.

BBFTorino wrote:X2 on the porting. More cam will also help open up the flow path, which equals more power (generally).
What size headers are you running on it??

I think the headers are 2 1/8, I'll check

rmcomprandy wrote:

frankcons87 wrote:Hi, I have a stock 521 bbf crate engine making 600hp in a 84 thunderbird(2350 with me on it) with a glide and 4.56 gears,
and I want to make it some updates for a lower E.T.
The engine has 10.0:1 compression,SCJ heads Combustion chamber volume is 72cc(not ported),ford racing solid roller mechanical camshaft,Valve lift is .640" intake and exhaust. Duration at .050" is 254 degrees intake and 258 degrees exhaust, victor single plane intake with with a chuck nuyten dominator.

My plans are:
1.-I want to change to a comp cam, do you have any suggestions?
2.-What do you think is a best option(gain/cost),
bore to 4.5(now is 4.39) to make it a 547ci, or
porting heads and intake?
with wich option I would have more gains and how much do you think it would cost me?

And the other thing, do you recommend me changing to a rons alcohol injection system? right now im running with vp 112, would I have better results? hp or E.T.

WHICH 514 crate engine from FRPP do you have ...? Marine rods or H-beam rods ...?
They offered both as the engines got updated.

Is this a race car or a street,strip car ...?

C12 is a waste of money at 10.4/1 compression. VP110, (not C10), is more than needed.

The engine is a 521 CI Crate engine (link performanceparts.ford.com/part/M-6007-521FT) with forged steel H-beam roads, and I'm looking at the possibility of switching to a rons alcohol system.
It is a 84 tbird chrome moly race car.

why alcohol? that creates a lot more work for you and doesn´t help you with this compression..

Ashburner wrote:why alcohol? that creates a lot more work for you and doesn´t help you with this compression..

Well the reasons that I've been thinking are because it's cheaper, runs cooler and I've been having problems with temperature with my car, and the las is that I think that it would add some hp's

Methanol engines need a lot of compression to create power. somewhere like 16:1
with 10:1 you won´t be happy, you have to drain everything after the weekend because methanol is very aggressive, etc. you need to change the engine oil because you´ll have a lot of methanol in it.
You need a different engine oil.. bottom line is that you have a lot more work to do.. plus you need a LOT more Methanol compared to race gas..
not necessary for 600-700hp

if you have temperature issues clean the block first..
a healthy block usually doesn´t overheat if everything else is ok

Put some flat top pistons in that thing! Change cam and add the ron's injection. I am the same combo in my maverick but slightly bigger bore 532 TFS street head at 2470 lbs glide and 4.88 gear. I am running low 5.50's in the heat and 5.47 best e.t. 1/8th mile

Methanol is much easier with injection and the primer plus system but get the primer plus. I never drain anything. Pull it in the garage and turn it off. Car can set all winter or longer work depending lol and fire right up with ease. No issues all AN braided lines on entire system.

Feel free to contact me if you need any tuning help.

Adrian

away wrote:Put some flat top pistons in that thing!  Change cam and add the ron's injection.  I am the same combo in my maverick but slightly bigger bore 532 TFS street head at 2470 lbs glide and 4.88 gear.  I am running low 5.50's in the heat and 5.47 best e.t.  1/8th mile

Methanol is much easier with injection and the primer plus system but get the primer plus.  I never drain anything.  Pull it in the garage and turn it off.  Car can set all winter or longer work depending lol and fire right up with ease. No issues all AN braided lines on entire system.  

Feel free to contact me if you need any tuning help.

Adrian

 

What cam do you have? and what pump size are you using?

What about a quick change to e85. save the hassle of switching to injection. get your carb redone while your heads are being ported. Compression would probably help more than porting, but without porting your still holding back. Are you looking to do a full rebuild on bottom end.
Seth

frankcons87 wrote:

away wrote:Put some flat top pistons in that thing!  Change cam and add the ron's injection.  I am the same combo in my maverick but slightly bigger bore 532 TFS street head at 2470 lbs glide and 4.88 gear.  I am running low 5.50's in the heat and 5.47 best e.t.  1/8th mile

Methanol is much easier with injection and the primer plus system but get the primer plus.  I never drain anything.  Pull it in the garage and turn it off.  Car can set all winter or longer work depending lol and fire right up with ease. No issues all AN braided lines on entire system.  

Feel free to contact me if you need any tuning help.

Adrian

 

What cam do you have? and what pump size are you using?

Comp cam solid roller .726 lift don't remember the rest off the shelf deal nothing special. Ron's injection terminator with 0 1/2 pump 38 jet