How much horse power do u think a stage 2 Texas speed 243 heads with there 228r cam and ls6 intake??how much at crank and how much rear wheel would ya guestimate?

 

400rwhp and 380rwtq roughly

 

i made 410 and 389 rwhp/tq with that cam. small valve 709 heads, fast intake and tb, and the usual boltons, through a catback. m6 tranny and a shortblock with over 100k miles

 

im assuming you want numbers for a stock ls1 also. so id say around what i made, you stand to make more with the FAST setup. depending on the tuner and dyno also. but let me ask this, why the 228r, its an ok cam, but a bit small. why not an ms3, those heads will keep flowing after the 228r quits.

 

What size throttle body and mass air Should be used with this combo???

 

430 to the wheels in an M6.

 

i put 400 rwhp with stock 799 heads 228r on a 112 professional products 96mm with a nickwilliams 95 throttle body through a a4

 

agreed given the heads are milled some to bump the compression and all else is well with the car/tune.

 

420+ Through M6 with those parts and all the bolt ons.

 

I almost did TEA stage 2 243 heads and a 228R cam, researched both the FAST90/92 and LS6 intake, A4 numbers were around 400 to 425'ish rwhp, for a stock cube LS1.

Local guy has TFS 225's and a 228R cam his numbers were 440/430 if I remember right, LS6 intake.

I ended up going a diffrent route.

 

I made 417hp/400tq when I had my 228r, stock head, and
Fast 90/90. With 243's u should be in the Mid to lower 400's atleast!. Ditch the ls6 and get a fast intake. U'll pick up 20 whp over the ls6.

 

was about to say the same thing.. I made 432rwhp with my 228r cam i had in a t/a and it was with a ls6 intake