need opinions on my 306!

stangman4lif

Member

Jan 16, 2003

122

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17

Spartanburg, SC

Dec 13, 2003

#1

• Dec 13, 2003

• #1

306 with gt-40y heads with port and polish...c&l 73 mm...65mm tb...cobra intake..24 lbs injectors...b303...maybe e303 cant decide......up compression to around 11 or 11.5 to 1.....1 5/8 headers shorties...2 1/2 in full exhaust...k&n conical....1.6 or 1.7 roller rockers still up in the air....so i just need some thoughts on hp and anything else u guys can think of....

 

HO93LX302

Founding Member

Jul 7, 2002

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Naugatuck,CT

Dec 13, 2003

#2

• Dec 13, 2003

• #2

stangman4lif said:

306 with gt-40y heads with port and polish...c&l 73 mm...65mm tb...cobra intake..24 lbs injectors...b303...maybe e303 cant decide......up compression to around 11 or 11.5 to 1.....1 5/8 headers shorties...2 1/2 in full exhaust...k&n conical....1.6 or 1.7 roller rockers still up in the air....so i just need some thoughts on hp and anything else u guys can think of....

Click to expand...

Well I'm not 100% sure but I would say with that compression and everything else at least 400-450 at the wheels, could be wrong though.. Sounds like a sweet setup.. 306's are always nice for reving, thats why i'm building a long rod 306 so i can rev to 8500

 

ComfortablyNumb

Founding Member

Apr 25, 2002

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LB- Jersey Shore

Dec 13, 2003

#3

• Dec 13, 2003

• #3

stangman4lif said:

306 with gt-40y heads with port and polish...c&l 73 mm...65mm tb...cobra intake..24 lbs injectors...b303...maybe e303 cant decide......up compression to around 11 or 11.5 to 1.....1 5/8 headers shorties...2 1/2 in full exhaust...k&n conical....1.6 or 1.7 roller rockers still up in the air....so i just need some thoughts on hp and anything else u guys can think of....

Click to expand...

I'll bet you could do better than ported GT40y heads with another out of the box aluminum head. Im no expert and can't recommend anything but I would look around some more. I'm sure someone out there will recommend something. You could do better than a ford letter cam too. Is the 306 put together already? If not then get pistons that can accomodate big valves. Good luck, sorry I'm no real help.
-Skip

 

NKau

Founding Member

Dec 15, 2001

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Jefferson, WI

Dec 13, 2003

#4

• Dec 13, 2003

• #4

Is this thing going to be driven on the street? 11.5 to 1 compression is getting a bit high for pump gas isn't it? Why not 10 or 10.5?

 

R

RMatze

New Member

Jun 22, 2002

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San Diego, CA

Dec 13, 2003

#5

• Dec 13, 2003

• #5

if money isn't an issue, dss has a great 306. A buddy of mine has a dds 306 with cobra upper and lower and afr 185's and a blower and hes running 11's. just my 2 cents.

 

stangman4lif

Member

Jan 16, 2003

122

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17

Spartanburg, SC

Dec 13, 2003

#6

• Dec 13, 2003

• #6

thanks for the input guys..its going to be a daily driver...im not sure on the compression what but im milling the heads...and as far as the heads im really PORTING the heads and everything will be balanced and blueprinted...so i can rev it to altleast 6500 safely....just a lil LS1 killer all i want!

 

stangman4lif

Member

Jan 16, 2003

122

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17

Spartanburg, SC

Dec 13, 2003

#7

• Dec 13, 2003

• #7

i always have the NOVI 1000 i got for sale..but i want to run n/a

 

Xtreme Limits

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Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#8

• Dec 13, 2003

• #8

List everything on you new motor setup and ill run a dyno for you.

and then ill play around and mabey ill find you some more Hp

BTW i would also do a long rod 306, 1.8 rod ratio he!! yeah you could go to 7500 all day long and then go to 8500 to with the rite cam

 

NKau

Founding Member

Dec 15, 2001

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Jefferson, WI

Dec 13, 2003

#9

• Dec 13, 2003

• #9

OK, one tenth of a point compression is worth about 1-2 hp. You'd be giving a little up by only running say 10.5 to 1, but I don't think anything in the area of 11 to 1 is safe for pump gas, even running 93 octane. If I were you, I'd do some more research before you pick pistons and have your heads milled.

 

Xtreme Limits

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Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#10

• Dec 13, 2003

• #10

11.0:1 will be pushing it, i say back it down around 10.5-10.7:1

 

stangman4lif

Member

Jan 16, 2003

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Spartanburg, SC

Dec 13, 2003

#11

• Dec 13, 2003

• #11

ill have everything in the post uptop...with full asscessories like i said it will be my daily driver...what else do u want to know?

 

Xtreme Limits

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Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#12

• Dec 13, 2003

• #12

stangman4lif said:

ill have everything in the post uptop...with full asscessories like i said it will be my daily driver...what else do u want to know?

Click to expand...

are you buying new rods? or just useing the stock ones?
5.090 or 5.4

 

Xtreme Limits

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Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#13

• Dec 13, 2003

• #13

also whats your email so i can send you your dyno print out?
i'll list it here to , but i have a 80k limit on my pics so you wouldnt see it in a graph.

 

stangman4lif

Member

Jan 16, 2003

122

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17

Spartanburg, SC

Dec 13, 2003

#14

• Dec 13, 2003

• #14

o yeah whole new bottom end..plus i got pro engine builder i live with him...im planning it now he just doesnt know it yet...hell check all my figures...and u might be right bout the compression

 

stangman4lif

Member

Jan 16, 2003

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17

Spartanburg, SC

Dec 13, 2003

#15

• Dec 13, 2003

• #15

stangman4lif@hotmail.com...thanks for doin that man..mind if i tell a buddy about it?

 

Xtreme Limits

Founding Member

Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#16

• Dec 13, 2003

• #16

lastly will you be getting a chip to bypass the stock revlimiter, (you will gain alot of hp by doing this cus i can choose a better cam for your combo).

 

Xtreme Limits

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Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#17

• Dec 13, 2003

• #17

sure, im happy to do it for anyone, i dont have a job so i have lots of time o my hands.

 

stangman4lif

Member

Jan 16, 2003

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17

Spartanburg, SC

Dec 13, 2003

#18

• Dec 13, 2003

• #18

yep the rev limiter is already gone...

 

Xtreme Limits

Founding Member

Nov 30, 2001

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Hudson, Florida

Dec 13, 2003

#19

• Dec 13, 2003

• #19

i sent you a email...... let me know....

 

stangman4lif

Member

Jan 16, 2003

122

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17

Spartanburg, SC

Dec 13, 2003

#20

• Dec 13, 2003

• #20

thanks man i will