I found the company site here. So far just the L98 version available.

http://www.usmracer.com/Induction-Fuel_c_19229.html

Here's the thread on the LT1 HSR. Page 5 has some flow numbers.

 

rklessdriver
Whatever happened to the dyno sheet you wanted to post, interested in your #'s??
Also, what happened power wise using the Monoblade and the ported intake??

 

Wow, I did not realize so many people wanted the HSR.

Makes me want to buy a Bridgeport and start making some up.

 

Larry, did you ever get your engine on a dyno and if so, do you have any comparisons between before and after???

Arnold

 

Yes I did and I posted the Miniram dyno and the HSR dyno side by side. They looked identical except I picked up some HP earlier in the RPM range and 10 RWTQ overall.

It is weird, I think it is the cam holding me back, others think it is the intake, but the Miniram flows more than the HSR so why wouldn't there be more HP? The more I think about it the more I think it needs a professional tune.

http://forums.corvetteforum.com/c4-t...-hsr-dyno.html

 

My initial dyno sheet is on my photobucket, I believe you already have a link to it.

The intake manifold is still unported.

As to what happen with the mono blade. I haven't been able to re dyno the car with it yet. It looks like I'm not going to in the near future either.

I did make a few very hard pulls on the street with it week before last and I probally shouldn't have...

I wanted to see how the car drove with it so I took it out last Sunday early in the morning. While I was playing around on an otherwise deserted hwy making 2nd gear pulls, I ended up getting in a race with a modified STI (which the owner/driver said had over 450WHP). I played around just putting a few cars on himin 1st and second gear from a roll. He seemed to think he'd do better the longer we ran so.... I ran it pretty hard one time just to let im know I really was playing around with him. 8 cars by the top of 2nd gear (85mph) should have gotten the message across but I chose to run slam out of site on him in 3rd and 4th just be sure....

When I got back home with the car, it was blowing oil out the breather and dip stick. Massive positive crank case pressure. A partial compression test has 2 cyls down to under 100lbs... the plugs from those cyls are covered in alum as well... Looks like I have a few burned pistons to show for being stupid and not checking the tune after changing the TB.

My day job with the Govt has me working out of state the last week and this week. I've not had time to do anything more than think about how much money this is going to cost me...

It looks like next month around spring break I'll be able to get the car down to my dads shop in GA and we'll go from there depending on how bad the block is screwed up. Hopefully this is a deal where it just torched the ring land and didn't do any damage to the bore. Of course I won't know for sure until we pull it apart.

Sorry guys, I wish I had better results for you guys but sometimes we do things we shouldn't have and it looks like it cost me a motor this time... Well it still runs at least.

Will

 

Been there done that, cracked the piston lands due to detonation, went to Wiseco forged

 

Will, really sorry to hear what happened to your engine. You put so much effort and detail into the build and then this. All my parts are forged and hopefully this will never happen. The way you drove I do this all the time!! On some of our Autobahns there is no speed limit, so I rev mine up to 6600 in 5th gear plenty of times.

BTW, I found four dyno sheets on photobucket but these are all Engine Analyzer sheets. Didn't you ever do a real word dyno run??

 

It's one of those things. I know better - but I did it anyway Obviously I didn't think it was as leaned out as bad as it is on top from just a TB change.

No worries. I'll fix it.

That EA stuff is sims I've done for various members here and there to help them out.

Yes, I do have the disapointing dyno sheet (440RWHP) from when I first had Ed do the tune. I should have left the motor alone and kept it like it was. It had plenty of power and the AF was completely safe... It just pissed me off that the lifters were bleeding down and killing power above 6000RPM.



I don't have the one from the last dyno session. It was a different dyno shop and they didn't send it me after we had WORDS about them bouncing my engine off the rev limiter (first pull without even checking the AF).

It looked about the same except I got the lifter bleed down in check and the HP Peaked at 6500-6600RPM (478RWHP).

Will

 

I dont think your cam was optimal for that motor and either intake. That cam i think was done so you wouldnt see any big difference between the HSR and miniram other than the shape of the curve and maybe more torque for HSR.

I got a 233/233 on a 112 going into my 400 twin turbo motor here this spring. Plan to rev to 5800 rpm. Should be done by then and possibly shift by 6000. For a 6500 shift point,i'd go more with a 240/243 on a 110 Or something similar