blue print for 700-800hp in ls3 long term

[Robin Lawrence]

Originally Posted by crazz28

Haha, ya, I guess that was a bit of a brain fart. Sorry 'bout that. Promise it won't happen again.

Anyways, say a guy was to load up the engine with forged bits, anybody have a ballpark idea about what power would be possible with the TVS2300?

Well....the engine in the picture above was a stock LS3 with a TVS 2300. I was concerned about hurting the engine with what the 2300 was capable of making.

We made one pull to 4000 RPM after I tuned on the fuel curve a bit. It had a total of 12 degrees of timing and showed no knock during the first pull.
It made 724 Foot pounds of torque at 3700 RPM and 554 Horsepower at 4000 RPM where the pull ended

At that point I knew that it was capable of well over 700 horsepower on a stock LS3. Another pull to 5000 RPM was not as clean and it pulled 12 degrees of timing to a total of 0 during the pull. It again made the 724 torque at 3700 RPM.
Above the 4000 RPM it was level (because of the KR) but the horsepower was at 600 before 5000. I found that we had an breather line that discharged oil vapor from a valve cover that was still hooked to the inlet side of the intake. A little oil mist had caused the KR.
Given the situation I terminated the testing until I could get a forged assembly for the LS3.

I cannot waiit to get back to that project.

An inspection of the LS3 showed no damage. I used it foir some cams testing and it made great power while testing 11 different cams without the blower.

Robin

[CamaroSpike23]

Originally Posted by crazz28

We only want to BEAT the competition, not make them wish that they were never conceived!!!!!!

http://www.camaro5.com/forums/showpo...1&postcount=73

read the last comment in that post....

Originally Posted by SummoneR

Ahh thanks for answering. I know top fuel drags go just over a quarter mile before they rebuild them...

BTW ~850 with 358c.i.!! awesome!!

with our "old pushrod design" none the less.

Originally Posted by Robin Lawrence

Well....the engine in the picture above was a stock LS3 with a TVS 2300. I was concerned about hurting the engine with what the 2300 was capable of making.

We made one pull to 4000 RPM after I tuned on the fuel curve a bit. It had a total of 12 degrees of timing and showed no knock during the first pull.
It made 724 Foot pounds of torque at 3700 RPM and 554 Horsepower at 4000 RPM where the pull ended

At that point I knew that it was capable of well over 700 horsepower on a stock LS3. Another pull to 5000 RPM was not as clean and it pulled 12 degrees of timing to a total of 0 during the pull. It again made the 724 torque at 3700 RPM.
Above the 4000 RPM it was level (because of the KR) but the horsepower was at 600 before 5000. I found that we had an breather line that discharged oil vapor from a valve cover that was still hooked to the inlet side of the intake. A little oil mist had caused the KR.
Given the situation I terminated the testing until I could get a forged assembly for the LS3.

I cannot waiit to get back to that project.

An inspection of the LS3 showed no damage. I used it foir some cams testing and it made great power while testing 11 different cams without the blower.

Robin

will you be hiring in about a year?

[DGthe3]

Originally Posted by CamaroSpike23

http://www.camaro5.com/forums/showpo...1&postcount=73

read the last comment in that post....



with our "old pushrod design" none the less.

Or spinning to 20 000 rpm like some other race engines

[speedster]

Originally Posted by Robin Lawrence

Well....the engine in the picture above was a stock LS3 with a TVS 2300. I was concerned about hurting the engine with what the 2300 was capable of making.

We made one pull to 4000 RPM after I tuned on the fuel curve a bit. It had a total of 12 degrees of timing and showed no knock during the first pull.
It made 724 Foot pounds of torque at 3700 RPM and 554 Horsepower at 4000 RPM where the pull ended

At that point I knew that it was capable of well over 700 horsepower on a stock LS3. Another pull to 5000 RPM was not as clean and it pulled 12 degrees of timing to a total of 0 during the pull. It again made the 724 torque at 3700 RPM.
Above the 4000 RPM it was level (because of the KR) but the horsepower was at 600 before 5000. I found that we had an breather line that discharged oil vapor from a valve cover that was still hooked to the inlet side of the intake. A little oil mist had caused the KR.
Given the situation I terminated the testing until I could get a forged assembly for the LS3.

I cannot waiit to get back to that project.

An inspection of the LS3 showed no damage. I used it foir some cams testing and it made great power while testing 11 different cams without the blower.

Robin

Impressive to be able to boost to 700+hp reliably with pump gas with a static compression of 10.7. I see the high torque figure, but it will be interesting to see how much high rpm hp you can make without building heat and then detonation. Did it seem to heat up fast with the timing yanked back to 0? I realize most people won't hold higher boost for very long periods unless they are running on a track or at Maxton or Silver State. Cool stuff Robin. Interests the heck out of me...

[CamaroSpike23]

Originally Posted by DGthe3

Or spinning to 20 000 rpm like some other race engines

I laugh at people who talk about how much more "advanced" SOHC/DOHC/etc engines are over OHV GM motors... then tell them, thats why they continue to beat OHV GM motors a Le mans..... oh wait....

[29er]

i like the p/s pump pulley..nice item. aluminium or billet?

[GTAHVIT]

So doing a little research here's what I found on replacing the internals on the LS3...

The LS9 pistons list at 129.44 each The LS9 rods list for 965.93 each.

The LSA pistons list for 63.33 each The LSA rods list for 44.74 each.

with all the talk about the LSX here is another option that I don't have a price for yet. I would look at the LSX376 piston. Its a forged flat top piston and mate it with the new LSX forged steel rods.

[dragonZ28]

800 BHP is easily attainable with a FI setup. Many turbo guys have hit that mark with 346ci LS1 cars. It will still cost a lot of money, and you will need stronger internal components.

I have hit the 556RWHP mark all motor on a 408 stroker in my 99 Z28. I figure that's a pretty high number at the crank, but I won't guess at numbers. I promise it is over 600HP at the crank, though.

You'll need FI and a built engine. I don't think a built 454 LSX can hit 800BHP naturally aspirated. Turbo kits will be your friend hitting 800BHP.

[TT C6]

Originally Posted by perfxn

ok, i havent any knowledge about hp or engines. All the knowledge i have comes from this site.

If your looking for modding and tech info,
go to Corvetteforum.com. LS1tech.com is good as well.

The good news is the LSx has been around since 1996 in the Corvette and the trial & errror, and research has already been done before.

My advice:
Keep the longblock completely stock and run a supercharger with both a conservative amount of boost and timing along with a FULL exhaust.

FRONT MOUNT Twin Turbos are the most forced induction (FI) and make the most power.
Unfortunately, they are more expensive and more complicated than a belt driven supercharger.

The 2009 ZR1 Corvette uses the TVS 2300 positive displacement supercharger. That blower will be available for the Camaro. PD blowers offer OEM reliability, incredible torque, and LOW RPM power with NO boost lag. The best thing about thge 2300 is that you can underdrive it on a stock engine but still have the option of turning the boost up if you forge your engine of want to sell it to someone who has wither a stock or forged engine.


FYI
The ECS Paxton Novi systems is THE supercharger system for the Corvette.
With the ECS Novi, you can either make 500-600rwhp on a stock longlongblock,
OR run 9's with aggressive boost/tune.
Also, this system offers expandability because you can turn up the boost if you ever want to forge your engine.

[perfxn]

thanks TT, i think i wana supercharge vs turbo. just more american muscle like. although that grand national...

[TT C6]

Originally Posted by perfxn

thanks TT, i think i wana supercharge vs turbo. just more american muscle like. although that grand national...

I would call Chris or Doug at ECS.
http://www.eastcoastsupercharging.com/

If you need a shop to install and tune,
A&A in Cali is good.

But, Turbo Technologies is in Washington state.......
George's TTi-X system is the TT of choice for the Corvettes.

[perfxn]

thnks im going to be in florida for ocs so the eastcoast works

[Kyle2k]

Anyone know some good Midwest shops for the aforementioned work?

[TT C6]

Originally Posted by Kyle2k

Anyone know some good Midwest shops for the aforementioned work?

Lingenfelter.
They're the best.....but EXPENSIVE.

If I lived near them, I'd have them do a blower on my car.