Burnout91

I would like to see the best run graph of the HSR equipped car, the car with the smallest cam, least compression, and least displacement, for a good comparrison to the 'other' cars present... And, a good shot of the EGR installation on the HSR would be cool, also. No sour grapes here, but (I think) we all know the potential in 'that' motor. (This post is truly made in the spirit of fun n' friendly competition.)

Bill

VincentZ28

iTrader: (2)

Well my last combo went 12.41@112 with just an extrude honed runner and base. Same heads with a lunati cam 226-234@565lift with 1.6 rockers. 340hp@5200-370tq@4400. So with a couple small changes this is what I get. Ok also this engine has an off set grind 305 crank with .040 over pistons.

Justin89Formy

iTrader: (26)

wheel specs please?

VincentZ28

iTrader: (2)

Ventura Centerlines 18/9.5 all for corners with 6in backspace and no spacers.

I see are running a Miniram with Afr's. What cam do you have?

Burnout91

Cool, my HSR motor made 380+ rwhp on two different days, two weeks apart, on the same dyno; I'll find the missing hp! Got lots of respect for your car Vincent and everybody else's, but you all know I'm onto something....or maybe I'm just on something...LOL!

Peace & love,

91

P.S.: When is track day?

Justin89Formy

iTrader: (26)

lloyd elliot .535 .535 224 230 duration 109lsa

Its a nasty cam for a 355 I love it. Not as much grunt as I would have liked down low but 2200-6xxx rpm and whew boy hold on! It pulls HARD to 6500 then I let off...dont want to blow it up

VincentZ28

iTrader: (2)

April 3

Burnout91

I'm Down.

Justin89Formy

iTrader: (26)

wish i could say the same...my car is tied up in the paint booth lol

VincentZ28

iTrader: (2)

Too bad you don't live in So. Cali. It would be an interesting race, Miniram vs Super Ram. Some people would say the SR will lose. But I doubt it.

thegooseman

Where at, and how much?

Justin89Formy

iTrader: (26)

I would lose from missing a shift or something dumb

VincentZ28

iTrader: (2)

California Speedway

VincentZ28

iTrader: (2)

Naw that wouldn't be it. I would just muscle in front of you with the torque and stay in front because I can.

Orr89RocZ

iTrader: (20)

Would be a good race with the power numbers you guys have. Anyone want to run a low compression 401?

1989GTATransAm

iTrader: (3)

" Anyone want to run a low compression 401?

You mean the one that brings its own barometric pressure?

Justin89Formy

iTrader: (26)

bench racing booooooo

VincentZ28

iTrader: (2)

Noo! He's talking about the one that blow dries your hair.

Burnout91

Orr: Well, I've got a 'low compression' 350....! We just have to stop by the local "Test Only" center for 'tech inspection' after you clean my clock!!LOL

$750 L98

Wow, I need to redyno my car, I only put down 289rwhp with a cammed LQ9 lol. Although...it had a loose map sensor, bad O2, 2 exhaust leaks, 3 intake leaks, stock tune for a 5.7, and about 10* too much timing throughout the RPM range.

How does it feel with that much power? I never got to try out the HSR before my 383 blew up on me.

Orr89RocZ

iTrader: (20)

You guys would win, i wouldnt pass tech to run out there more than likely

Cant wait to see what you guys run tho. Whats the raceweight of the cars and whats typical race day weather like? 370-380whp should definately be a 11 second car. I'm impressed. I didnt have emissions to worry about and went with a fairly large cam for my 383 HSR. (230/245 .603/.613 109lsa) Only made 392whp/371wtq on a hot day and heatsoaked motor but still. You guys arent far off that with 20 less cubes and smog legal. You are doing something right. My track in the summer with a 3400-ish lb raceweight, i went 11.47 at 118 with best trap of 119. Sounds like you guys have a fun ride on your hands with good tires and 3400+ stall speed

VincentZ28

iTrader: (2)

We are racing complete full Interior and A/C. In short showroom weight.

Dyno Don

iTrader: (7)

Here it is>>>>>

Saabster

iTrader: (2)

Peak torque at 5000, smallish cam...riiiiight.

Very nice though. Good to know that my relatively modest goals for my 305 are well within flow characteristics of the HSR manifold.

Dyno Don

iTrader: (7)

Here is mine....

Saabster

iTrader: (2)

oooooo, details? This is how I want my engine to be eventually, just on a smaller scale.

1989GTATransAm

iTrader: (3)

Let us not forget that Burnout91's car is a 700R4. A lot of the other are stick shifts.

Orr89RocZ

iTrader: (20)

Good point I didnt realize that... more power to the ground in a stick

Burnout91

Actually, this run was from before I integrated the EGR system, and I don't recall the tune (A/F ratio) being that good from the session on ~9/16/09. I think my best from 3/13/10 was 365hp / 353 tq, with the A/F dialed in pretty well, by Kevin91Z. Don, could you post my best from 3/13/10? (Sorry to be such a pain.) Thanx!

badgta

iTrader: (4)

i don't get it... the xfi 280 made peak from what i see at 5950 rpm. but everyone says the xfi 292 will go to 7000, if there that big of a difference, or have you considered trying it out to crest the 400rwhp mark?

impressive numbers man! remind me to get up with you on the tune, because i am building a similar afr headed 355.

well done man!


adam

Orr89RocZ

iTrader: (20)

superram is probably causing peak to reach 6000 or so. That cam is capable of 6100-6200 or so in a 383, possibly more. Just needs right valve springs to control it that high and short runner intake. XFI 292 is a big cam. 12 more degrees duration, its a decent step up. It should peak in the 6500 rpm range and hold to 7000 on a 383. On a 355, there are guys using it in LT1's that say it doesnt peak til 7K and I dont doubt it. The CC306 is a big LT1 cam only type cam and it willgo to 6500-6700 so the XFI 292 will go even higher. That cam requires very strong springs and light valvetrain to control it that high tho. Heads need to be on the larger side to support those rpms too. 210cc heads would be awesome with XFI 292

anesthes

iTrader: (12)

Consider the runner length of the intakes involved.

Run a singleplane and I'm sure you'll be shifting at 6800.

-- Joe

Burnout91

I wouldn't exactly call it crippled; the really, highly, max-effort modded TPI systems like 1989GTATransAm, Kevin91Z and Dyno Don run are near single-plane intake performance, and geting closer to S/P performance with each revision. And, VincentZ28's modded SuperRam holds on to the power at upper R's pretty darn well also. I went the other way, and adapted an EGR system to the HSR-and I'll bet a cold soda it will pass California visual and sniffer tests. I'm due for inspection this October. Most of us here in SoCal are not having much of a problem with good / great / excellent performance, while doing our part to keep the air clean.

Bill

Orr89RocZ

iTrader: (20)

Just curious to see how your intakes would perform with a tight LSA cam which should boost low to midrange performance while also helping out topend with the increased overlap.
Then again looking at the cams you have now, they are not what I'd call mild cams. Several 230+ deg cams in 350-370 inch motors passing cali smog is very impressive. makes me wonder why the LSx crowd doesnt go bigger than 224 most of the time with their cali cams.

Hard to say if a 108-110 lsa cam with the right valve events would significantly make a difference. Most of the short runner single plane types like abit of overlap and tighter LSA. Would be an interesting comparison, but like already said you guys are doing incredible things while meeting the standards. I'm not sure how much room for improvement there would be if no emissions were taken into account.

1989GTATransAm

iTrader: (3)

We will be finding out shortly what the XFI292 camshaft is all about. There will be a 383 with an extensively modifed Super Ram going on the dyno with this cam installed. It will be in a 700R4 car and I would expect this combination to exceed 400rwhp. Exciting times around here.

There are many factors that determine where a motor will make peak horsepower. The camshaft is only part of the equation.

Burnout91

I sure wish I could get a look at the graph from my best run on 3/13/10....can't seem to open the files I'm being e-mailed

Orr89RocZ

iTrader: (20)

This will be interesting. Many LT1 guys have said a 383 will go to 6800 with the 292 cam. Its about where I took my cam'd 383 that had less duration on intake, a touch less on exhaust but abit more overlap overall due to much tighter LSA. Those superram runners will need to be short with big ports in the base to support that rpm range.

1989GTATransAm

iTrader: (3)

"Those superram runners will need to be short with big ports in the base to support that rpm range."

They are. This is the most modified Super Ram I have seen to date. A lot of attention to detail and how air flows has been paid to. It should make for a most interesting dyno session. However the SR looks stock from the outside. I would say the heads will be the restriction regarding the air flow.

anesthes

iTrader: (12)

Bill,

Perhaps. The HSR will probably work well. Just saying, I've used a couple different intakes. Singleplane was always the fastest.

I used to live in Glendale btw, back in the early 90s. While I like the weather, the politics and brainwashing environmental ***** were a bit much for me. Lived in ma from early 90s until a few years ago, then moved to NH. Gas station down the street from me sells leaded gas at the pump.. God bless NH.

Perhaps crippled was a bit of a statement to make, but look at it this way. Hours and hours of time, and money into a big dollar LTR setup makes xxx power. I had a setup like that. Sold it for about $1000, and made a single plane intake for about $200.. Put $800 in my pocket, and went 10mph faster at the track. Just my experience. What is the difference from 110-120mph? maybe 100hp? 224 degree cam btw, at .050.. 6,000 RPM shift. Not like I was being an idiot trying to run a 300 degree solid roller on a LTR intake..
If you didn't pick up 5mph by converting to a singleplane I'd be shocked, honestly. Which might not matter to you, but at the time I was trying to race competitively.

These days, I'd rather play with my horses.

-- Joe

TPI-Formula350-

nice numbers!

thegooseman

No kidding, thats where I live. It would be nice to see more camaro's around here.

86camaroZ

Those are some great numbers guys! Can't wait to see what my setup can do in a few weeks here.

1989GTATransAm

iTrader: (3)

Our class rules (California state smog) dictate what we can and can't do to our cars. A single plane intake manifold is out of the question for a street legal car. We are playing within the rule book. Our cars have passed the tech inspection.

anesthes

iTrader: (12)

Right, that's why I said it's too bad.

-- Joe

VincentZ28

iTrader: (2)

Are you getting you car to the dyno today?

TPI-Formula350-

I wish...I had the motor all in but while trying to get bin files into Prominator( prom eliminator) the flash chip went bad. So I pulled it out of my cars ECM and shipped it out to Moates.net for repair. I had to cancel my dyno tune on 3/17. Next avalible date I got was 4/21.. but I'll post numbers after that dyno tune.

VincentZ28

iTrader: (2)

Do you have any port work done to the super ram? If not, it might not make it to 355hp.

TPI-Formula350-

well its already made 467HP@5500 and 517TQ@4000 with the SuperRam on, I have a few more cubic inch. That was on a engine stand dyno out of the car. Should make 385ish HP and 425TQ in the car.

1989GTATransAm

iTrader: (3)

"Should make 385ish HP and 425TQ in the car."

Might be a little optimistic with the 700R4 and the higher stall.

86camaroZ

Question: Why would a higher converter make for a bigger loss? Does it have to do with its weight or something? And i take it the 700r4 is just a garbage truck transmission.