Blow-thru 350 Buick Iron-1021 HP w/F-1C

[buicks4speed]

I am posting this here to pass it on. This is Bill M. Buick 350 motor dyno.

For a 350 Buick this is pretty impressive considering the lack of aftermarket parts. The entire rotating assembly was all custom order.

Motor Breakdown:
350 buick stock 2 bolt main block 3.830 bore x 3.85 stroke (stock configuration) All ARP Studs throughout-60-80psi oil pressure running 50w Redline stock oil pump.
Eagle crank, Childs & Albert rods, J&E Pistons 8.5 comp
Custom Comp Roller Cam-246/260@.50 .578/.600 112LC installed straight up.
850 CSU Carb and Hat 80/88 jetting on final pull
Aeromotive A1000 regulator
Race air-to-air intercooler w/ a 125 mph fresh air fan in front.
Headers are 2" tubes - 21" long - 4-2-1 merge into 3.5" x 4.5" megaphone 5" long.
Port IRON BUICK HEADS 290intake/200exhaust 1.6 Roller Rockers
Cometic gaskets
Ported STOCK IRON 4BBL INTAKE with plenium milled out
5" carb spacer

2 different ATI superchargers were used:
D1 Procharger
F-1 Procharger- Chevy cog adaption. Drive: 8" & 6.75" Blower: 3.5" down to 2" in 1/4" increments. 8" and 3" were the most used up to 16psi.

Motor, N/A Hp and torque numbers were mid 5's NA and the graph pretty much went flat just over 5800.

First Combination D-1:
838.5 hp @ 7100
674 tq @ 6000
12 psi.

Boost to 15psi (overspinning blower)
881.1hp @ 6950
711.1tqe @ 6105

Second combination F-1C:

950 hp/ 731 trq. Ran it up to 7200rpm on PUMP GAS!! 20psi
upper 900's with more tuning on following pulls......

on the seventh and final pull w/race gas and 20psi:
1021 hp @ 6800
808 ft. lbs. trq. @ 5750!!! :SHOCKED: :anbet:


__________________

[ap1672]

I'm shocked that a sbb block will handle all that power.
bbb blocks need girdles or main stiffeners at far less power levels.
This engine must have this kinda stuff? 350 buicks don't have a reputation for almost 3 hp per cubic inch. I love to see this engine run.

[buicks4speed]

I'm shocked that a sbb block will handle all that power.
bbb blocks need girdles or main stiffeners at far less power levels.
This engine must have this kinda stuff? 350 buicks don't have a reputation for almost 3 hp per cubic inch. I love to see this engine run.


The 350 is a much stronger block that has skirted main caps like all other Buick blocks other than the 455. Buicks are heavy cars so naturally everyone goes with the 455 and this is why the 455 gets all the performance parts. With the evolution of power adders, this has changed everything. The 350 dynoed had no girdle or any reinforcing block parts. At 1021HP the motor showed some indications of a little block twist but nothing substantial. There is a girdle, heads, and intake in works for the 350 with the developments that Bill has made. I think with a blow-thru turbo setup he could have made another 100hp. But there is another 350 motor with a turbo mounted to it in works. Bill's motor build up could have been a simple buildup if crank, rods, and pistons would have been available. It is nothing short of AWSOME the power he made with ported iron heads and ported iron intake!! :SHOCKED:

So, not even block fill for the block!! You wanna build one??? Oh, yea....It made upper 900's HP ON PUMP GAS!!! No ALKy injection or anything!!:SHOCKED:

[junkbrick]

Always wondered what a 350 Buick would do with a little TLC...congrats to the owner, great to see something with the numbers "350" that makes some power without the letters "Chevrolet" any where in the description!

BTW, what car is it in? Always curious!

-reed

[buickdav]

. But there is another 350 motor with a turbo mounted to it in works.

Other than mine ??? :metoo: :metoo: :arco:

Bills motor is "THE" #1 influence behind mine. I have wanted to mess with one for a couple years now. And Bills motor FINALLY convinced my builder to consider some ideas. Not to mention he shipped a 500+ NA small block out. I have to give Bill all the credit on this one. And credit for mine getting started. Had it not been for him, I would still be tossin' main webs out of big blocks :tantrum2: .

Also while I am passing out the kudos, Kevin, your call the other night got me motivated to actually go to work on the car. Back on it tommorrow too :elefant: . And Rick, I may pimp you for some ideas and thinking on this turbo route along the way. Hope thats ok ??? :rock:

[Jern]

Other than mine ??? :metoo: :metoo: :arco:

Bills motor is "THE" #1 influence behind mine. I have wanted to mess with one for a couple years now. And Bills motor FINALLY convinced my builder to consider some ideas. Not to mention he shipped a 500+ NA small block out. I have to give Bill all the credit on this one. And credit for mine getting started. Had it not been for him, I would still be tossin' main webs out of big blocks :tantrum2: .

Also while I am passing out the kudos, Kevin, your call the other night got me motivated to actually go to work on the car. Back on it tommorrow too :elefant: . And Rick, I may pimp you for some ideas and thinking on this turbo route along the way. Hope thats ok ??? :rock:


Are you building a set of headers for this, or something else?

[buicks4speed]

Always wondered what a 350 Buick would do with a little TLC...congrats to the owner, great to see something with the numbers "350" that makes some power without the letters "Chevrolet" any where in the description!

BTW, what car is it in? Always curious!

-reed

Rumor has it, he found a tube chassis car to try it out in. :add_schac

[buickdav]

Are you building a set of headers for this, or something else?


YUP for sure. Gonna try and make a good effort of it.

[Jern]

I noticed that chevy 350 and Buick 350 exhaust port spacing is the same (or darn close, anyway) and wondered how well an adaptor plate would work. The other side is there is probably no such thing as an off-the-shelf turbo header for the SBC. ACCEL did make a turbo kit with a cast iron turbo exhaust manifold for a SBC way back when, but the header would probably flow better and weigh less.

I'm looking forward to seeing what these "little" Buicks can do!!!!!!

If the Bull Dog block keeps running into roadblocks I may have to try it myself! I have a few 350s laying around! :)

[buicks4speed]

"Jern", What size turbos are you running on your beast. Even get your converter any tighter? Or get a good hooking pass out of it?

[Jern]

"Jern", What size turbos are you running on your beast. Even get your converter any tighter? Or get a good hooking pass out of it?

They are TO4Bs. If I remember correctly the compressor side is an "E" housing.

The trans was fried! I borrowed a trans and converter from a friend (from his blower car) and never even got out of the shop with it, too many other things took my time. Now the "tight" 10" converter is in a trans that was set up for racing about 10 years ago, but never raced. And all this is in a different car! I'm building a '70 sport wagon to play with and made some changes to help free up some room under the hood.

Every pass I've made has had a problem associated with it.

When I first built the engine I forgot to check TDC on the balancer. It was off by 16°! This made the engine lazy and under the hood HOT!

I had the fuel injection computer rpm source hooked to the MSD box, and it lost the signal at approximately 4500 rpm, which cut the fuel off.

I had a Coan 9" converter in the car that was too loose (I thought) so I bought a tighter converter. The tighter converter loaded the engine more and the boost became uncontrolable. I bought larger wastegates and dumped them to atmosphere and redesigned how they attach to the headers.

I had .020 copper head gaskets with O-rings and reciever grooves in the heads, and on one pass blew both head gaskets after the 1/8th mile mark. (and popped the upper radiator hose and made a mess!) I changed to .040 coppers and so fer so good. This pass was a mid 11 in the quarter.

The most recent pass was a while back now when I ran only a low 8 in the 1/8 mile, but my data logger (and speedometer) showed almost 100mph. They weren't giving out timeslips that day and nobody remembered the mph, but I'm guessing the datalogger wouldn't be but so far off. I found out that the trans was fried.

I made a lot of progress on the wagon from Oct 2004 to May 2005. If I get back in that same groove here shortly I may make a pass before the year is out. :racer:

[6techniques]

WOW! Thats what I get for ASSuming that those blocks cant handle much. Awesome job! :D I think I know what I might be playing with when I get tired of the LC2!!!

[Reaper]

:fcad0cab:


Really we all need pics!

[buicks4speed]

:fcad0cab:


Really we all need pics!


Ok, Ok, Ok...How about a little tease for now. I'll work on the pics..

http://www.itnnetworks.com/alan/billdyno.wav

This is the 3rd pull of 4 on the dyno before the supercharger was put on. :rock_dj:

Now remember, cast iron intake and heads..............

[Reaper]

Ok, Ok, Ok...How about a little tease for now. I'll work on the pics..

http://www.itnnetworks.com/alan/billdyno.wav

This is the 3rd pull of 4 on the dyno before the supercharger was put on. :rock_dj:

Now remember, cast iron intake and heads..............


oh oh i cant wait to DL this when i am off work! :playboy:

[burtonstranny]

Count Me In With My 84 Regal I Have Been Pushing This Around In My Head For The Last 3 Years I Will Be Looking For A Good 350 This
Weekend This Will Be My Winter Project

[DARRELLTHOMAS]

:anbet: :anbet: :anbet: :anbet: I am posting this here to pass it on. This is Bill M. Buick 350 motor dyno.

For a 350 Buick this is pretty impressive considering the lack of aftermarket parts. The entire rotating assembly was all custom order.

Motor Breakdown:
350 buick stock 2 bolt main block 3.830 bore x 3.85 stroke (stock configuration) All ARP Studs throughout-60-80psi oil pressure running 50w Redline stock oil pump.
Eagle crank, Childs & Albert rods, J&E Pistons 8.5 comp
Custom Comp Roller Cam-246/260@.50 .578/.600 112LC installed straight up.
850 CSU Carb and Hat 80/88 jetting on final pull
Aeromotive A1000 regulator
Race air-to-air intercooler w/ a 125 mph fresh air fan in front.
Headers are 2" tubes - 21" long - 4-2-1 merge into 3.5" x 4.5" megaphone 5" long.
Port IRON BUICK HEADS 290intake/200exhaust 1.6 Roller Rockers
Cometic gaskets
Ported STOCK IRON 4BBL INTAKE with plenium milled out
5" carb spacer

2 different ATI superchargers were used:
D1 Procharger
F-1 Procharger- Chevy cog adaption. Drive: 8" & 6.75" Blower: 3.5" down to 2" in 1/4" increments. 8" and 3" were the most used up to 16psi.

Motor, N/A Hp and torque numbers were mid 5's NA and the graph pretty much went flat just over 5800.

First Combination D-1:
838.5 hp @ 7100
674 tq @ 6000
12 psi.

Boost to 15psi (overspinning blower)
881.1hp @ 6950
711.1tqe @ 6105

Second combination F-1C:

950 hp/ 731 trq. Ran it up to 7200rpm on PUMP GAS!! 20psi
upper 900's with more tuning on following pulls......

on the seventh and final pull w/race gas and 20psi:
1021 hp @ 6800
808 ft. lbs. trq. @ 5750!!! :SHOCKED: :anbet:


__________________

[buickdav]

Just keeping this thread active, lol. Us 350" guys need parts, as in heads and intake. If more of yall get interested we can get somewhere. In regards to this motor of Bills......rumor has it, it's time to get it out and get started again. Hopefully Bill will be back with some more info for us. These motors can take some pounding yall. We have proof of hot motors recently. N/A motors(Sonny and Rob M.), NOS(Jeffs), supercharging(Bills), and hopefully this coming spring, a couple turbos(mine). 350's have made a serious jump here. Just need to keep going so we can get some needed parts built.

[Reaper]

sounds mean........... I still want pics!

[buicks4speed]

For a supercharger and blower hat..

http://xsperformance.net/


Best Blower hat for the combo in my opinion.
http://www.superiorairflow.com/extreme_velocity.htm

[Jern]

Just keeping this thread active, lol. Us 350" guys need parts, as in heads and intake. If more of yall get interested we can get somewhere. In regards to this motor of Bills......rumor has it, it's time to get it out and get started again. Hopefully Bill will be back with some more info for us. These motors can take some pounding yall. We have proof of hot motors recently. N/A motors(Sonny and Rob M.), NOS(Jeffs), supercharging(Bills), and hopefully this coming spring, a couple turbos(mine). 350's have made a serious jump here. Just need to keep going so we can get some needed parts built.

I can't remember but does any of the older heads fit? Didn't some 300s come with aluminum heads?

[6techniques]

Guys,
Im starting to get seriously interested in in this sbb setup my self!
I have a few questions about this setup first though.
1- What are the best years for the 350 (strength wise)
2- " " " " 350 heads?
3- Are those blocks able to support a splayed cap conversion? (enough material in the main webbing)

Not to take away from this awesome thread but I thought this would add a little more info for those who are interested in doing something like this! :rock:

-J

[buicks4speed]

Guys,
Im starting to get seriously interested in in this sbb setup my self!
I have a few questions about this setup first though.
1- What are the best years for the 350 (strength wise)
2- " " " " 350 heads?
3- Are those blocks able to support a splayed cap conversion? (enough material in the main webbing)

Not to take away from this awesome thread but I thought this would add a little more info for those who are interested in doing something like this! :rock:

-J

Anything 70-81 should be a good block to start with as I haven't heard anything about any difference or better castings.

As far as heads, they are all the same with 55-58cc open chamber. Meaning shaving the heads or block gives the same results.

75 and later heads came with slightly larger 1.54-1.55" exhaust valves

73 and later come with the stronger rods with cap screws instead of studs.

Splayed caps?? Its a skirted block like most other Buick blocks and like the GM LS series engine. So the caps are even with the pan rails. A girdle similar to what is used on turbo v-6's was/is in works to tie the caps and pan rails together for applications over 900HP.

350's are plentiful with no special type needed. Very cheep too. Some even give them away to get them out of there garage. New heads and intake are in works. I'll pass on information as I get it..... :rock:

[6techniques]

Cool!
Ill be sure to keep watching this thread for updates.

Anybody looking to trade a hotair engine for a 350? :add_twink

-j

[BillMah52]

OK. We pulled it out of its bubble tonight and rolled it into the engine room.
I'll be leaving Thursday morning for a three state sweep to gather some "goodies" for this ongoing experiment. Should be into it by the weekend.
Now I have to go out back to see if the money tree is ready to harvest. :dong:

[buicks4speed]

Ok Bill, just waitin' for you. Looking forward to seeing some new stuff. :rock: I hope that when "stuff" comes available that all the 350 guys jump on it like they say they would. The market is there with all the 350's running around. You got a car lined up for that motor yet?

Ignition....Are you going to be or are you running the newer MSD 7531 ignition with all the goodies? Is the boost progressive enough that you wont be needing a electronic boost controler?

[GS70350]

Whats new with this project? Any new info?

Im always sitting on the edge of my seat here hoping to read something new here. Cant wait for the 350 aftermarket to come alive.

[buicks4speed]

Bill M.,

Is there an order number for guys to reference when calling if someone wants to orders crank, rods, and pistons you used in your motor???? Any way to include Company, phone number, and reference info for those looking to step it up a little. :firedevil :rock:

[VadersV6]

INSANE!
Mad props to you my friend!