VincentZ28

iTrader: (2)

What kind of HP are you making with a 350-360 engine ? Just curious!

Burnout91

Of course, you know about my build and the numbers that have been produced.


Are you ready for a HSR with the BO91 EGR mod? I have a couple extra 'block-off' channels to act as a starting point.


Of course, we all know your car rips pretty well as is

Bill

Beater79TA

At 8.5:1 compression I made 298 rwhp and 300 rwtq on a 355 with a HSR. Then I added a F1A Procharger and it makes just a little bit more. That's with the Comp NX276HR cam.

On the Miniram car, it still needs more tuning but it makes 360rwtq at 2200 and 310 rwhp. It needs more tuning and most likely more cam than a CC305 to really make good power.

Orr89RocZ

iTrader: (20)

Friends stock bottom end L98 but with .060" over pistons (360" at around 9.5-ish to 1 comp) with old AFR 190's and HSR with 280xfi cam made 330whp before suffering valvefloat at 5700 and up. It was horrible, power was fluctuating 40+ hp up and down on the dyno as we pulled to 6200.

If you extend the graph, based on the slope of the HP line, i'd estimate 350-355whp was possible at 6200-6300 rpm. Not bad for old AFR 190 heads that likely only flow 250-260cfm. New 195 eliminators and another point of compression should be up near 380-400whp I'd say, pull to 6500 likely.

Car ran 12.2 at 112 with the valvefloat problem. I have no doubt with better launch, cool air and the right valve springs for no float, it would have gone 11.8's at 114-ish, maybe 115.

Kat

iTrader: (4)

355 ported hsr, ported afr 195s, 11.25:1 compression, Mid 240's dur, almost .600 lift and on a 112 lsa, 2210 headers, 42lb injectors, few other odd's and ends. Im guessing 400-430 through the auto.

Last time I had it to the dyno in 2009 I ran out if injector and made 385 rwhp and I had to start the dyno at 3500 cause of the 3k stall. TQ was only like 335 iirc. The AF was almost 14:1

But back in dec last year at Atco I went 11.57@117.5 :shrug:

SuperRamFormula

iTrader: (1)

I'm thinking about replacing my SuperRam intake with ba HSR and I'm wondering if it will fit under a stock Firbird hood. Also, I have a 383, AFR 190 heads, SLP 1 3/4 headers, 2800-3000 stall, and a 3.27 rear axle. Currently I running the SuperRam intake system and the matching 219 cam. If I switch to the HSR intake whats a good cam profile to use? Thx, Tom

thegooseman

397 rwhp 353 rwtq

355 stock crank, ZZ4 rods, hypereutectic pistons
AFR 195's
Comp Cams 280 XFI
1.6 Roller Rockers
58mm throttle body
SLP 1 5/8 shorties
3 inch magnaflow cat back

VincentZ28

iTrader: (2)

I guess most people put this stuff on and don't know how well the car is running. It just feel good to the butt Dyno. One guy made in SoCal made 408whp@6050 with a Miniram, 280XFI and Trickflow Heads.

Orr89RocZ

iTrader: (20)

Yeah I guess not many dyno the car or post up slips. Seems like only the california guys are using setups like this.

Some great numbers in here tho.

VincentZ28

iTrader: (2)

Yea they must be embarrass by their set up not working like they should.

Beater79TA

Not embarrassed exactly, just know the combo isn't sorted out yet. I know the Miniram car needs to move up to a bigger cam and a higher stall TC and then get retuned.

355tpipickup

iTrader: (5)

great numbers on these setups. question....how well does the stock bottom end hold up to the 6k power band from the 280xfi cam?

z 28 jari

iTrader: (1)

355,hsr,eq heads ,218/228 cam,headers&no cat,700r4,10 bolt 3.42. 3670lbs raceweight ->
12.8/107.xx at 1/4mile(airfield strip).
I have several dyno measurements between 300...390whp,don't trust dynos too much.Trap speed tells truth.

Sprayed92

355
11.5 to 1
crane cam 232/242 550 lift 110lsa hyd roller with 1.6rr
trans specialties 3500 stall 700r4
10bolt 3.23 gears
ported vette 113 heads 49cc chambers 2210 headers mufflex y slp 2otl
made 343rwhp 327rwtq
ran 12.5 @107 on the motor
11.5 @117 150 shot

355tpipickup

iTrader: (5)

11.5-1 comp....what gas do you have to run with that setup?

Orr89RocZ

iTrader: (20)

Should beable to get away with 93 with cold plugs and a conservative timing tune and maybe abit richer than normal. Thats a good sized cam on a 355 so it may be doable. LT1's can run 12 to 1 just fine, and 11.5 is common for them but they have better cooling. Keep it cool, keep it richer/low on timing with a cold plug its likely possible with that cam.

Sprayed92

Yeah it was a low 12 afr like 12.4 to 1 and the most timing I could put in it was 30 degrees total plugs I ran in that motor were ar3932.

VincentZ28

iTrader: (2)

Who else is making power with a Stealth Ram and Miniram?

cIaRmOaCrZo

not all that great due to these crappy 882 heads. but iv ported them pretty extensively and made 312whp and 401 wtq. its all in the signature