Hey guys Im interested in seeing what your hsr cars are running.I want to see what cam and heads your using and power numbers to give me an idea what works to build my own block.Also what efi your running..whether its stock 730 with tune etc.Thanks alot

stock 305 with headers and borla exhaust.
195rwhp 273rwtq

383, edelbrock heads 60859, edel TES headers, CompCams cam CCA-CL08-503-8, powered by MegaSquirtII - aprox 400rwhp ??rwtq

best regards

I had 330 RWHp and 349 ft/lbs Tq with a very lean tune 18.5 AFR!!! (That's on a chasis dyno, NOT THE CRANK!!!) add 25% for driveline losses to find crank HP/Tq numbers.
http://www.youtube.com/watch?v=nATv0...e=channel_page

http://www.thirdgen.org/techboard/at...no_9_23_08.jpg

If you read the post "Goin to the Dyno" (Search It...) You'll see what type #'s my less than stock engine put out....

This link shows the difference between the TPI setup and the HSR with add-ons...
http://www.thirdgen.org/techboard/al...0-lpe-1-a.html (HSR+AFR180+LPE+1.6RR=Dyno #'s!!!)

This was on a 165 ECM without a custom tune..... Better #'s can be had with a better chip and bigger injectors.... which I'm working on at this moment.


This may be just my 2 cents but, I think that it can be foolish to throw out big "approx" Hp #'s because the Horsepower is often much less than our ego's think it is.....

If I can get very close to 330whp and 350tq that will be a nice street/strip cruiser.Im thinking of using afr 180's and comcams xfi268 and pro mag 1.6rr with my hsr

With 8.5:1 compression, AFR 195 heads, and a 224/234 at 113 cam, I put down 295rwhp and 310 tq.

At 6psi, that went to 400 and 412. Next step is up the boost to about 15psi and see what it does....

The AFR 180, Comp Cams XFi 268 with 1.6 RR is a good combo...... make sure that you have upgraded your exhaust. A torque converter with a slightly higher stall and lock up feature would be beneficial as well.

By the way, the engine I have in my car right now has a lower than stock compression ratio. I found that it had dished pistons and that the piston was .040" in the hole to begin with......

A flat top piston and zero decked block would have yielded better results.
I'll be goin back to the dyno soon...... with my custom tune and larger injectors

I'll have numbers the first weekend of August but here's the mechanics I'll be bringing:

383
Dart Pro 1 alum heads, 64cc/200cc
1.5 Roller Rockers
Custom cam (specs are in a few different posts from me)
Hooker 2210 headers
HSR
BBK 58mm TB
10:1 compression

No more supercharger until after I dyno, then a D1SC is going back on.

I'll have numbers the first weekend of August but here's the mechanics I'll be bringing:

383
Dart Pro 1 alum heads, 64cc/200cc
1.5 Roller Rockers
Custom cam (specs are in a few different posts from me)
Hooker 2210 headers
HSR
BBK 58mm TB
10:1 compression
730ecm $59 code w/own tune

No more supercharger until after I dyno, then a D1SC is going back on.

"No more supercharger until after I dyno"

Hmmmm. IMHO opinion you are kind of in between with the compression at 10:1. A little high for a supercharger and a little low for NA performance with aluminum heads.

Well I already have a 2800 stall,hooker 2055 headers,magnaflow lt1 catback exhaust in the car from my previous 355.I just want to take my current stock 350 out and have it freshend up and then add the cam and heads and hsr and drop it in.

I have no dyno#'s; however, with larger stall autos dyno numbers really dont mean too much.
I have ran a 12.4@110 @3550lbs with leaking intake gaskets. (sucking oil down the intake ports)
Since then I have refreshened the motor and ported the intake to a 1206. I will be going to the track tonight to work on a new best!

Great numbers.....! What type cam are you using with the DartPro1 215's?

Just outta curiosity, I grabbed this off a online HP Calculator, (there's tons of them) it said;
"Your Camaro weighs about 3550 pounds and can complete a 1/4 mile in about 12.4 seconds. That means that you've got about 368.00 HP at the wheels, and about 478.40 HP at the flywheel."

Very impressive,

I compared them to #'s I had from a previous 1/4 mile and subsequent dyno pulls... it was within 5 HP.

It just goes to show you the HSR's capabilities... whether it's in a 305 or a 383, we all seem to love them!!!!

Take it for what it is...... an opinion

86white, it's a great upgrade!!!! There's tons tons of us who have done it. & you already have all the complimentary parts!!!
By the way Chris, How did the freshened up engine do at the track?

Sammy, the cam is a 234/238 @ .050 .582/.594 112lsa.
I am pleased with my setup however, I know the engine is over-headed, 200cc intake ports would have been more than enough for this setup. In order for me to get where these heads would shine on this 355 would mean me spinning it up to 7000 rpm. Not realistic for my valve train components and 700r4.

I am disappointed with the times tonight. The track prep was not that great, plus temps were in the upper 80's with high humidity (Oklahoma Summers are brutal) I clicked off a new best of 113 mph however the best time tonight was another 12.4 @ 111 with a 1.79 60'.
The trans is shifting itself out of 1st at 5400 rpm which is 1000rpm lower than my 2-3 shift. Combined with the large split of the 1-2 gear ratios I think its really holding me back. Next time at the track I will try and have some skinny's up front at least. The 17X9.5's with 275 rubber up front is not helping my times whatsoever.

BTW HSR's rock!

I dynoed my car stock along time ago, never dynoed the 383 with 215cc dart heads + the blower last year, sold the blower over the winter to finance my new engine I built this year. Haven't bought another blower yet and won't until after I dyno. 10:1 is fine for the blower, I'm using a 3 core intercooler and plan on putting in a snow stage 2 meth injection kit. The stock L98 motors were 9.75:1 compression and I ran 10+ psi on that for along time. The last motor was built at 8:7:1 compression for high boost but the P1SC was too small. The new motor was also built for boost, but will get either a D1SC or F1A feeding it. I only am running motor only till its all tuned and broken in. Blower goes in, minor tune work and I'm back to where I was last year with a supercharged car again.

The HSR IMO is a great intake. I am noticing the power band more and more after each drive. One thing I haven't seen mentioned on the HSR FPR is the apparent crap shoot sometimes on the regulators life. I know quite a few people who go to the Kerban fuel pressure regulator setup. I don't know, I'm using the HSR stock FPR and 1100miles so far, no issue.

Here is a video from last night. It is on facebook so you have to be a member in order to view it. I will try and get my friend to post it on youtube so its easier to view.
http://www.facebook.com/video/video....id=13480087811

That run was very nice.The 1-2 shift seems to really hit early than i was expecting when you mentioned it..wow.Other than that its a very nice run and nice car thanks for posting that up

96WhiteT/A thanks for the comment!
After looking over the datalog it seems that the trans shifts itself out of 1st at ~5000. With that fixed and some skinnys up front there will be 11's N/A in the future for the 355 HSR. hoping to spray it in the 10's this fall.

Stock L98 with flat tops, HSR, 212/218, fully ported 083's and stock computer with tune.

No dyno numbers but running 8.40's 1/8 mi at 83 MPH NA. 7.69's @ 93 with 150 shot. Est 300 whp NA.

My 355 HSR with stock rods with arp rod bolts,trw forged pistons stock crank and corvette aluminum heads milled down to 48cc with a lunati 232/242 540/565 lift cam on a 110lsa with a 3600 stall and 3.23 gears went 12.5@107 w/1.72 60' on a 125 shot it went 11.5@117 w/1.68 60'. Stock computer tuned by a friend of mine, it put down 343hp and 327 tq on the motor. On the spray it put down 444 hp and 430 tq on a 125 shot. Since then i've swapped the cam to a 238/246 584/584 lift on a 112lsa. No new numbers yet.Car feels like a rocket ship with the new cam haven't made any clean passes at the track with the new cam since the posi finally decided to say peace out lol.

lol damn that sounds like a nice lil machine ya got there.I cant wait to get all my parts together so i can be back on that level of power and have a nice peak number aswell compared to my old tpi motor

Well I have the dyno sheet to prove it and dealt with a few issues on the Dyno today. I gapped my plugs at .035 (too big) and was blowing the spark out even with the digital spark box @ 5 PSI. But the engine in my sig put down 327hp / 485ft-lbs. The guys said and I know I'm looking at getting atleast 60hp back with better timing, richer AFR than 14.1 under boost and a .025'sh gap. Not too shabby on the torque though

383 with 9.8 comp, forged dish pistons, scat crank, scat rods, all ARP bolts
ported HSR by me, also port matched to felpro 1206
58mm TB, 30lb SVO injectors
patriot aluminum 195cc heads ported and port matched to 1206
comp cams XFI 280, 230/236 .571/.569 lift and 113 lobe
1.6 aluminum full roller rockers
gona have to tune it myself (no idea how)

700r4 built my me to handle 675+hp with a 2900 stall, with 3.55s in the ford 8.8 out rear(rebuilt posi with carbon fiber clutches)

i should be putting down close to 480-490 at the crank, depends if i spray it or turbo it in the future.

my stock TPI350 with a motorvation chip, full headman LTs, true dual 3" with 3" xpipe and ported plenum, SLP runners. with stock 3.27 9bolt (posi was gone) and stock stall only went 14.8 in the 1/4 due to massive wheel spin (street tires nitto 555s) i should be in the high 11s hopefully NA with the 383 and hope 10s with spray or forced induction.