recommendations please...motor build?
Thread Starter
Drifting
Joined: May 2003
Posts: 1,551
Likes: 0
From: salt lake city UT
recommendations please...motor build?
Hey Guys,
Please help me with the best combo for a budget FI motor build.
What are the must haves on parts....keeping costs down....but being smart!
Goal will be around 750-800rwhp D1sc or YSI
car will be used mostly for hard mountain fun driving!
iron 6.0 36x around 10.5 compression i was thinking...but open to suggestions!
Cam Ls9 zr1 ?
Springs?
Litters?
Propper fuel system
Alky injection
stock crank?
Forged pistons....should i go dished? what specs? coated or not?
arp bolts
317 heads?
rods...can i go stock or is that looking for trouble?
mostly need budget motor advice....
Thanks!
Please help me with the best combo for a budget FI motor build.
What are the must haves on parts....keeping costs down....but being smart!
Goal will be around 750-800rwhp D1sc or YSI
car will be used mostly for hard mountain fun driving!
iron 6.0 36x around 10.5 compression i was thinking...but open to suggestions!
Cam Ls9 zr1 ?
Springs?
Litters?
Propper fuel system
Alky injection
stock crank?
Forged pistons....should i go dished? what specs? coated or not?
arp bolts
317 heads?
rods...can i go stock or is that looking for trouble?
mostly need budget motor advice....
Thanks!
Last edited by master blaster; Jan 30, 2011 at 09:37 PM. Reason: Info
Le Mans Master
Joined: Jul 2005
Posts: 7,121
Likes: 3
From: Shreveport/Bossier Louisiana
St. Jude Donor '08
An iron block is great for strength and should help keep cost down if you don't want to use your current block. With compression that high, you will likely have to run low(er) boost levels and possibly a hefty amount of methanol. If you went with a lower CR, you could run higher levels of boost and be safer.
The stock crank will suffice for your power goals easily. Choose a forged piston that fits your desired CR and definitely get forged rods. Also, 317 heads are a great budget FI head, as I run the same ones and they have been great so far.
So, I'd look to get a compression ratio in the mid-9's with the 317 heads, forged pistons and rods, spray the meth and have fun. All you have to do is make the decision on what block you want because any of the available blocks will get you to your desired HP goals.
The stock crank will suffice for your power goals easily. Choose a forged piston that fits your desired CR and definitely get forged rods. Also, 317 heads are a great budget FI head, as I run the same ones and they have been great so far.
So, I'd look to get a compression ratio in the mid-9's with the 317 heads, forged pistons and rods, spray the meth and have fun. All you have to do is make the decision on what block you want because any of the available blocks will get you to your desired HP goals.
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
Man have fun with it and be safe...
jobberone
Joined: Aug 2003
Posts: 2,062
Likes: 8
From: Kailua Kona HI
Agree with stock crank. Would go with dished and coated forged pistons. Don't go cheap on them or the rings. You can go with used forged rods if you can find some. I wouldn't use the stock rods. Make sure your fuel system is up to the task. A lean condition only takes a second to ruin an engine even a forged one. You can use the stock manifold and TB. Think about a bigger radiator.
Then you need to plan for your drivetrain. A stock drivetrain can only stand up to 800HP for a short time. Possibly a very short time. Don't forget your wheels and tires either. I would minitub the rear, too.
Then you need to plan for your drivetrain. A stock drivetrain can only stand up to 800HP for a short time. Possibly a very short time. Don't forget your wheels and tires either. I would minitub the rear, too.
Last edited by jobberone; Jan 30, 2011 at 10:57 PM.
Former Vendor
Joined: May 2005
Posts: 3,749
Likes: 4
From: Valencia Ca
Are you looking for 750-800 RWHP at 4500 ft elevation or 750-800 RWHP SAE corrected?
If it's the latter, you should choose the 6.0 iron block and find a set of thick deck heads, forget the 317's.
Good luck on the build.
If it's the latter, you should choose the 6.0 iron block and find a set of thick deck heads, forget the 317's.
Good luck on the build.
Hey Guys,
Please help me with the best combo for a budget FI motor build.
What are the must haves on parts....keeping costs down....but being smart!
Goal will be around 750-800rwhp D1sc or YSI
car will be used mostly for hard mountain fun driving!
iron 6.0 36x around 10.5 compression i was thinking...but open to suggestions!
Cam Ls9 zr1 ?
Springs?
Litters?
Propper fuel system
Alky injection
stock crank?
Forged pistons....should i go dished? what specs? coated or not?
arp bolts
317 heads?
rods...can i go stock or is that looking for trouble?
mostly need budget motor advice....
Thanks!
Please help me with the best combo for a budget FI motor build.
What are the must haves on parts....keeping costs down....but being smart!
Goal will be around 750-800rwhp D1sc or YSI
car will be used mostly for hard mountain fun driving!
iron 6.0 36x around 10.5 compression i was thinking...but open to suggestions!
Cam Ls9 zr1 ?
Springs?
Litters?
Propper fuel system
Alky injection
stock crank?
Forged pistons....should i go dished? what specs? coated or not?
arp bolts
317 heads?
rods...can i go stock or is that looking for trouble?
mostly need budget motor advice....
Thanks!
