NA 3V Stroker dyno

[2005Redfire6]

I got my car dyno tuned yesterday and the car made 340/337 with the dyno registering 92 degrees. It could use some UDPs, maybe a diff. TB, etc. I will post up the dyno sheet when I get home. These are not the final plans for the car, I have more planned so I am not too worried about it. Here are the mods:

-Livernois 298 short block 9:7:1
-Stock heads
-Comp 127500 cams
-Comp steel retainers
-Comp 26125 springs
-CMDPs
-39lb Injectors
-FPDM wiring upgrade
-A/C Delete
-BBK Long tubes
-BBK O/R X-Pipe
-Pype Bombs
-Stock ported/polished TB
-JLT Series 3 CAI
-McLeod RST

Swap thread: http://www.s197forum.com/forum/showthread.php?t=113666

 

[Dubstep Shep]

Getting the valve shroud taken off would likely help those numbers a bit. A new intake as well. You did drop compression though, so that's going to hurt your numbers some. If you're staying NA I would have taken that to at least 11:1

 

[Dubstep Shep]

Sounds pretty damn sick though

 

[2005Redfire6]

Getting the valve shroud taken off would likely help those numbers a bit. A new intake as well. You did drop compression though, so that's going to hurt your numbers some. If you're staying NA I would have taken that to at least 11:1

Yes I know, I bought the motor from someone and said I could live with the CR being slightly lower than stock. I may boost it down the road so it is all good! And you mean different intake manifold?


And yeah it is loud as hell lol.

 

[Dubstep Shep]

Yea sorry, different intake manifold.

IMO, though there are many here that don't agree, a lower compression ratio is ideal for roots and twin screw blowers. If you really want power that's about the only option on these cars. Grab a DOB kit and I bet you could make 500 pretty easily.

 

[2005Redfire6]

Yea sorry, different intake manifold.

IMO, though there are many here that don't agree, a lower compression ratio is ideal for roots and twin screw blowers. If you really want power that's about the only option on these cars. Grab a DOB kit and I bet you could make 500 pretty easily.

Thats actually what this motor had on it for a few thousand miles before I bought it.

 

[Dubstep Shep]

Thats actually what this motor had on it for a few thousand miles before I bought it.

I bet that was a sweet setup lol.

Eventually I want to do a larger displacement motor with a lower compression ratio and a huge blower. Big boost, big power. That's a long ways away though lol

 

[GT E UPP]

Does sound nice.....Save yourself all the the frustration and just Boost it !!!

 

[702GT]

Does sound nice.....Save yourself all the the frustration and just Boost it !!!

Exactly. That stroker will shine with some boost!

If you really want to crank it out N/A, more agressive cams/heads/intake manifold will flow some better numbers. But the lower compression isn't going to help the cause.

I bet that thing has a nice torque curve as it sits though!

 

[BruceH]

Believe it or not you are doing pretty good considering the mods. Like you already figured out increasing the stroke on this small bore doesn't do much. Your numbers are right where I was with a .030 over 4.6 that had frpp heads, 127400 cams, cai, stock cats, and 11:1 compression on 92 pump gas.

IMO the best way to get power na with these motors is with the Big Bore block from frpp. The 3.7" bore unshrouds the valves and really helps the efficiency of the combustion cycle. Consider this, The motor above made 347/347 with e85. Using the same heads, modified 127500 cams, frpp intake, and catted longtubes on a Big Bore displacing 322 cubic inches with 12:1 compression netted an actual non corrected 437rwhp.

You could probably build a 304 inch stock stroke big bore with the proceeds from selling the livernois stroker if you were so inclined. I'd think that with your current mods it would put you north of 380rwhp. With bumped compression and e85 it would be over 400rwhp on my race bench, lol.

I got my car dyno tuned yesterday and I am a little disappointed in the numbers, but it is what it is. Car made 340/337 with the dyno registering 92 degrees. The added stroke did little to nothing. It could use some UDPs, maybe a diff. TB, etc. I will post up the dyno sheet when I get home. These are not the final plans for the car, I have more planned so I am not too worried about it. Here are the mods:

-Livernois 298 short block 9:7:1
-Stock heads
-Comp 127500 cams
-Comp steel retainers
-Comp 26125 springs
-CMDPs
-39lb Injectors
-FPDM wiring upgrade
-A/C Delete
-BBK Long tubes
-BBK O/R X-Pipe
-Pype Bombs
-Stock ported/polished TB
-JLT Series 3 CAI
-McLeod RST

Swap thread: http://www.s197forum.com/forum/showthread.php?t=113666

 

[TexasBlownV8]

Daaamn that sounds good!!! ..forgot about the slightly-lower CR (10cc dish pistons).

 

[2005Redfire6]

Think I'm gonna stick with this setup NA and add heads down the road, etc. I know I will always be down on a little bit of power due to the CR, but no biggie!

 

[05yellowgt]

Actually the stroke is most likely what kept your torque numbers up. a stroker on its own definitely doesn't add to the peak HP though. I had a 9.3 compression stroker with 20 over pistons with stock heads/cams/intake with longtubes, and off road mid pipe that made 310/353 on the break in tune before I added the procharger.

 

[Bob_Kurgan]

Actually the stroke is most likely what kept your torque numbers up. a stroker on its own definitely doesn't add to the peak HP though. I had a 9.3 compression stroker with 20 over pistons with stock heads/cams/intake with longtubes, and off road mid pipe that made 310/353 on the break in tune before I added the procharger.

that's exactly what i told him!

 

[05yellowgt]

I forgot to reference the stock motor with the same mods and same dyno made 317/320 if I remember correctly. I could find a dyno sheet somewhere for it.

 

[2005Redfire6]

that's exactly what i told him!

I believed ya Bob! Lol

Actually the stroke is most likely what kept your torque numbers up. a stroker on its own definitely doesn't add to the peak HP though. I had a 9.3 compression stroker with 20 over pistons with stock heads/cams/intake with longtubes, and off road mid pipe that made 310/353 on the break in tune before I added the procharger.

Yeah thats what I was told, so I will retract that statement!

 

[Kylar]

Looks great!! Perfect setup for a power adder in the future!