HIGH HP RHS BLOCK OWNERS..LOOK INSIDE.. - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

HufferSS · 05-18-2012, 06:49 PM

Quote:

Originally Posted by JLE58

Within a month hopefully. Waiting on 9 inch and some engine parts.

Not bad...just going to be HOT. Late fall should be interesting this year.

JLE58 · 05-18-2012, 07:06 PM

Yeah I waited a little to late to decide to do this. I wasnt going to mess with the camaro at all and focus on the trans am. Just something cool about a single digit 5th gen and after seeing everyone else modding I could not help myself. We all have a long road ahead of us so I'm sure your right by fall we will all be ready turn them up.

Whipped416 · 05-18-2012, 08:10 PM

what horsepower do yall think it will take on a ls3 to get in the 9's>? with full suspension and dr's?

HufferSS · 05-18-2012, 08:18 PM

Quote:

Originally Posted by Whipped416

what horsepower do yall think it will take on a ls3 to get in the 9's>? with full suspension and dr's?

727....Jamie runs 9.98 but runs slicks....not an exact science but probably 727 to 750 somewhere in there.

Supercharged SS · 05-18-2012, 08:22 PM

Quote:

Originally Posted by HufferSS

727....Jamie runs 9.98 but runs slicks....not an exact science but probably 727 to 750 somewhere in there.

Yeah. Hate to admit it but Diamond Bill is correct. I thought I would be able to do it under 700 rwhp but I was 0 for many attempts. I'm on the stock suspension, minus trailing arms

, with a 16" slick. LPE double pump fuel system.

ECS Matt did with it just over 800 rwhp on a full out suspension but he was on DR's.

Whipped416 · 05-18-2012, 09:01 PM

thanks for the info guys... let me know when u want to sell your wheel setup jamie ... or if anyone knows someone who has a nice set of slicks!

Smith · 08-13-2012, 01:01 PM

Quote:

Originally Posted by HufferSS

... RHS blocks are junk.

Some people's kids......

I didn't say they were junk. They are fine in certain applications but my blower car is not that application. My nitrous motor had a lot of passes on it before the block cracked in it but the blower car only had around 12. If it cracks in 12 passes then there is a defect in the block. I have not heard anything back from RHS regarding these issue but I hope to hear something soon. If the the last comment you made was directed at me then you should have come to yb with it...

East Coast Supercharging · 08-13-2012, 02:55 PM

I have been very happy with RHS blocks, not so happy with LSX blocks, to each his own.

Doug @ ECS

HufferSS · 08-13-2012, 05:15 PM

Quote:

Originally Posted by Smith

I didn't say they were junk. They are fine in certain applications but my blower car is not that application. My nitrous motor had a lot of passes on it before the block cracked in it but the blower car only had around 12. If it cracks in 12 passes then there is a defect in the block. I have not heard anything back from RHS regarding these issue but I hope to hear something soon. If the the last comment you made was directed at me then you should have come to yb with it...

If it was directed at you then I would have quoted you.....I am not bashful.

Titan7up · 08-13-2012, 11:36 PM

Im here in afghanistan and making sweet tea daily, gotta love netgrocer and my coffee pot for the hot water. My team thinks i've lost my mind!!!

PoleCat2SSRS2010 · 08-18-2012, 10:44 AM

The title of this thread is subjective and does not specifically define the 2000-2500 flywheel hp needed that made runs mentioned in YB thread.

In order to run 4.7X in the 1/8th or even 7.9X in the 1/4 there are way too many variables that have not even been discussed or mentioned about the failures to even begin to get excited or question the integrity of either the RHS or LSx blocks.

Most folks in this forum that are using the RHS or LSx blocks are lucky to even reach 9.9Xs or less in the 1/4 with +4000lbs which means they are in the range of 900 to 1300 flywheel hp. Only very few have reached the low 9s. Those that are running the RHS and LSx are still running. (there was one LSx engine failure but it was a boosted situation with the 454 LSx (not to be discussed, just only mentioned))

A cracked block at 2000-2500 flywheel hp is most likely due to detonation BUT has not yet been verified.

****Maybe Smith would be courteous enough to provide some of the facts and data about of the run, the engine build and tune and then maybe credibility might begin to be established?

Considering that both of his blocks/engines failed, they must have other build related things in common besides the brand of block and builder.

Factors and pics like:
What was actual maximum boost for the failure run?
What was tune information?
What were the conditions of the weather and DA?
What was test information of the fuel used at the time of failure (fuel degrades and needs confirmed BEFORE being use in a race engine)?
What was the mechanical compression ratio?
What is the rod length and stroke (for purposes of understanding side thrust and leverage from R/S ratio)?
Are there any bent rods or bent wrist pins?
Is the crank within spec of its stroke relative to its complete rotation for each rod journal (out of spec indicating a twisted/bent crank)?
What are the cam specs (even an improper cam can create detonation with too much cylinder pressure)?

Some of these may seem trivial even to the average street engine but they get to be more critical when trying to get 2000-2500 flywheel hp.

It has been three months and there should be some kind of confirmation to the actual cause of failure.

..........and for the record.........I am not a bro, but I have been doing this for way too long to begin to suspect block integrity as being the only cause of block failure.

JLE58 · 08-18-2012, 12:08 PM

I dont belive smith really cares what we think. He has been doing this a while I think he knows the difference between a user or machine problem from a block problem. If he thought it was something on his end I'm sure he would have never said anything. You are correct about most People here are not going to make that much power in a 5th gen but there are also people in here that build other cars too that can. If I'm going to be looking for a block for a 2000hp LSx engine I'm not saying I wouldn't go Rhs but I would have some questions to be answer first..... I'm guessing you have a Rhs block.

PoleCat2SSRS2010 · 08-18-2012, 12:55 PM

Quote:

Originally Posted by JLE58

I dont belive smith really cares what we think. He has been doing this a while I think he knows the difference between a user or machine problem from a block problem. If he thought it was something on his end I'm sure he would have never said anything. You are correct about most People here are not going to make that much power in a 5th gen but there are also people in here that build other cars too that can. If I'm going to be looking for a block for a 2000hp LSx engine I'm not saying I wouldn't go Rhs but I would have some questions to be answer first..... I'm guessing you have a Rhs block.

You are correct.

Boost6924 · 08-18-2012, 02:52 PM

Quote:

Originally Posted by PoleCat2SSRS2010

You are correct.

Thanks for the help you gave me on my RHS build.

05-18-2012, 07:06 PM	#30
JLE58 Drives: CGM,twin turbo, cam 2010 SS/RS Join Date: Mar 2011 Location: ROCKMART, GA Posts: 2,185	Yeah I waited a little to late to decide to do this. I wasnt going to mess with the camaro at all and focus on the trans am. Just something cool about a single digit 5th gen and after seeing everyone else modding I could not help myself. We all have a long road ahead of us so I'm sure your right by fall we will all be ready turn them up. Last edited by JLE58; 05-18-2012 at 07:40 PM.

08-13-2012, 11:36 PM	#38
Titan7up Drives: 2011 2SS/RS Join Date: May 2011 Location: Va Posts: 32	Im here in afghanistan and making sweet tea daily, gotta love netgrocer and my coffee pot for the hot water. My team thinks i've lost my mind!!! __________________ www.ilovebagram.com if you dont know please read and enjoy. !!!!WARNING!!!! if you have been to Afghanistan this may cause a drop in your productiveness and the occasional wetting of yourself.

08-18-2012, 10:44 AM	#39
PoleCat2SSRS2010 R6P Marketing Lab Rat Drives: sometimes Join Date: Feb 2009 Location: Texas Posts: 339	can of worms? The title of this thread is subjective and does not specifically define the 2000-2500 flywheel hp needed that made runs mentioned in YB thread. In order to run 4.7X in the 1/8th or even 7.9X in the 1/4 there are way too many variables that have not even been discussed or mentioned about the failures to even begin to get excited or question the integrity of either the RHS or LSx blocks. Most folks in this forum that are using the RHS or LSx blocks are lucky to even reach 9.9Xs or less in the 1/4 with +4000lbs which means they are in the range of 900 to 1300 flywheel hp. Only very few have reached the low 9s. Those that are running the RHS and LSx are still running. (there was one LSx engine failure but it was a boosted situation with the 454 LSx (not to be discussed, just only mentioned)) A cracked block at 2000-2500 flywheel hp is most likely due to detonation BUT has not yet been verified. ****Maybe Smith would be courteous enough to provide some of the facts and data about of the run, the engine build and tune and then maybe credibility might begin to be established? Considering that both of his blocks/engines failed, they must have other build related things in common besides the brand of block and builder. Factors and pics like: What was actual maximum boost for the failure run? What was tune information? What were the conditions of the weather and DA? What was test information of the fuel used at the time of failure (fuel degrades and needs confirmed BEFORE being use in a race engine)? What was the mechanical compression ratio? What is the rod length and stroke (for purposes of understanding side thrust and leverage from R/S ratio)? Are there any bent rods or bent wrist pins? Is the crank within spec of its stroke relative to its complete rotation for each rod journal (out of spec indicating a twisted/bent crank)? What are the cam specs (even an improper cam can create detonation with too much cylinder pressure)? Some of these may seem trivial even to the average street engine but they get to be more critical when trying to get 2000-2500 flywheel hp. It has been three months and there should be some kind of confirmation to the actual cause of failure. ..........and for the record.........I am not a bro, but I have been doing this for way too long to begin to suspect block integrity as being the only cause of block failure.

05-18-2012, 08:10 PM	#31
Whipped416 Drives: 2010 CAMARO SS Join Date: Mar 2011 Location: Texas Posts: 1,515 View My Garage	what horsepower do yall think it will take on a ls3 to get in the 9's>? with full suspension and dr's?

05-18-2012, 09:01 PM	#34
Whipped416 Drives: 2010 CAMARO SS Join Date: Mar 2011 Location: Texas Posts: 1,515 View My Garage	thanks for the info guys... let me know when u want to sell your wheel setup jamie ... or if anyone knows someone who has a nice set of slicks!

08-13-2012, 02:55 PM	#36
East Coast Supercharging Drives: 8 second C5 Drag Car, C6 Road racer Join Date: Sep 2009 Location: Cream Ridge, NJ 609-752-0321 Posts: 778	I have been very happy with RHS blocks, not so happy with LSX blocks, to each his own. Doug @ ECS

08-18-2012, 12:08 PM	#40
JLE58 Drives: CGM,twin turbo, cam 2010 SS/RS Join Date: Mar 2011 Location: ROCKMART, GA Posts: 2,185	I dont belive smith really cares what we think. He has been doing this a while I think he knows the difference between a user or machine problem from a block problem. If he thought it was something on his end I'm sure he would have never said anything. You are correct about most People here are not going to make that much power in a 5th gen but there are also people in here that build other cars too that can. If I'm going to be looking for a block for a 2000hp LSx engine I'm not saying I wouldn't go Rhs but I would have some questions to be answer first..... I'm guessing you have a Rhs block.