need opinions on my 306!

[stangman4lif]

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]

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....

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]

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....

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]

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?

 

[RMatze]

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]

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]

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

 

[Xtreme Limits]

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]

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]

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

 

[stangman4lif]

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]

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?

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

 

[Xtreme Limits]

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]

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]

[email protected]...thanks for doin that man..mind if i tell a buddy about it?

 

[Xtreme Limits]

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]

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

 

[stangman4lif]

yep the rev limiter is already gone...

 

[Xtreme Limits]

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

 

[stangman4lif]

thanks man i will