TSP Goes Back to Engine Dyno with Stock 346 LS1!
08-29-2008, 06:43 PM
#81
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Yes, throughout the entire dyno, the same shortblock will be used, I believe we're in the 37-38 range for number of pulls currently (1-2 pulls for each setup). I don't have any of the graphs here, but here's some of the testing we've done.
Base Setup:
Stock 5.7L LS1 Longblock (241 heads)
Out of the box Fast 92mm intake + TB, 85mm SLP MAF
Stock LS1 Camshaft, LS2+ Chain
Kooks Stepped Engine Dyno Headers
4 Gallons 92 pump fuel, 1 gallon C-16 mix for stock and cam-only pulls
LS1 Engine Harness with 2001 Stock M6 PCM (using HP Tuners when needed)
Thats how we dyno'd for the baseline, which was a tad over 415hp at the flywheel. (factory underrated much?!). These results are inline to the last stock engine we engine dyno'd a year or so ago which was slightly over 400hp but with an LS6 intake.
On an engine dyno to see what works and what doesn't work, we only change one part at a time and keep the tuning as close to each other as possible unless its unsafely rich/lean, no ignition timing changes have been made yet (we'll save the fine-tuning tweaks until the final all-out setup). The consistency of engine dynoing is really nice to work with, the ease of parts swapping is a tremendous advantage also.
The highest setup we've done sofar has been the standard PRC 5.3L 2.5 heads with the MS4 camshaft. That was about 551hp and 460tq as a sneak peak, we currently have tested about 25 combination's with many more on the way next week.
Some interesting dyno's:
Will be back on the dyno Tuesday. 2 days down, 1-2 more left.
Base Setup:
Stock 5.7L LS1 Longblock (241 heads)
Out of the box Fast 92mm intake + TB, 85mm SLP MAF
Stock LS1 Camshaft, LS2+ Chain
Kooks Stepped Engine Dyno Headers
4 Gallons 92 pump fuel, 1 gallon C-16 mix for stock and cam-only pulls
LS1 Engine Harness with 2001 Stock M6 PCM (using HP Tuners when needed)
Thats how we dyno'd for the baseline, which was a tad over 415hp at the flywheel. (factory underrated much?!). These results are inline to the last stock engine we engine dyno'd a year or so ago which was slightly over 400hp but with an LS6 intake.
On an engine dyno to see what works and what doesn't work, we only change one part at a time and keep the tuning as close to each other as possible unless its unsafely rich/lean, no ignition timing changes have been made yet (we'll save the fine-tuning tweaks until the final all-out setup). The consistency of engine dynoing is really nice to work with, the ease of parts swapping is a tremendous advantage also.
The highest setup we've done sofar has been the standard PRC 5.3L 2.5 heads with the MS4 camshaft. That was about 551hp and 460tq as a sneak peak, we currently have tested about 25 combination's with many more on the way next week.
Some interesting dyno's:
Will be back on the dyno Tuesday. 2 days down, 1-2 more left.
08-30-2008, 09:58 AM
#84
I know we've got a set of AFR 205's to test, given there is time to do so this coming week. TrickFlow was on a back-order and we couldn't get heads in time IIRC.
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08-30-2008, 12:56 PM
#88
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Yea me to please.Was thinking of going with the 224r and the stage-1 ls-6 heads with upgraded springs. Not looking for huge power gains. I have the Kooks headers sittng here waiting to be installed, soon as I see some numbers from TSP. Thanks for all the info..
08-30-2008, 01:54 PM
#90
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i cant wait to see the results for 1 7/8 headers with a fast combo and also the results for the 1 3/4 pacecetters vs. the 1 7/8 tsp headers.
overall, i cant wait to see all the results.
subscribed!
overall, i cant wait to see all the results.
subscribed!
Here's a little teaser for you all (full results in a couple days, we've got ALOT more dyno'ing to do): Stock long-block with baby cams and a FAST 92 intake going close to 500hp! 1 7/8" headers are making more power from start to finish of pull over the 1 3/4" on the stock heads/cam configuration with the FAST 92!
We're just getting ready to start testing different cylinder heads this afternoon. Full results maybe this weekend? If not early next week after we compile all the data!
We're just getting ready to start testing different cylinder heads this afternoon. Full results maybe this weekend? If not early next week after we compile all the data!
08-30-2008, 11:18 PM
#91
****The highest setup we've done sofar has been the standard PRC 5.3L 2.5 heads with the MS4 camshaft. That was about 551hp and 460tq as a sneak peak****
now that was with the fast 92/92 set up right? i cant afford that right now lol...can you test these cams with a LS6 intake inplace? i would love to get a 92/92 buti cant afford one right now...i have the ls6 and my lunati cam is a 234/236/ .050 .544/.545 112 LSA..so i may step up to an MS4 cam here shortly...i already have the supporting mods..and will the new 1-7/8 headers fit a 241 head? also my forged mahle pistons came w/ valve releifs so i dont have to fly cut!! and i would love to make those numbers!!!
and when its all over...dont forget to add the juice!!!
now that was with the fast 92/92 set up right? i cant afford that right now lol...can you test these cams with a LS6 intake inplace? i would love to get a 92/92 buti cant afford one right now...i have the ls6 and my lunati cam is a 234/236/ .050 .544/.545 112 LSA..so i may step up to an MS4 cam here shortly...i already have the supporting mods..and will the new 1-7/8 headers fit a 241 head? also my forged mahle pistons came w/ valve releifs so i dont have to fly cut!! and i would love to make those numbers!!!
and when its all over...dont forget to add the juice!!!
08-31-2008, 12:09 AM
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Why are you guys mixing c-16 with your pump gas for these test?? that allows you to run more timing than usual and make more power and the results will not be on par to what we will see when we install the same combo. Or is there some other reason that im not aware of?
08-31-2008, 11:48 AM
#94
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let us know if there was flycutting done to the pistons used on the test motor cause i plan on going with one of your combos but don't really want to flycut mine since i plan on spraying too.
08-31-2008, 01:44 PM
#95
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Why are you guys mixing c-16 with your pump gas for these test?? that allows you to run more timing than usual and make more power and the results will not be on par to what we will see when we install the same combo. Or is there some other reason that im not aware of?
If anything higher octane when unnecessary will make less slightly less power.
As far as flycutting, yes I flycut this particular motor .080" Intake and Exhaust, but we're not close to needing those reliefs just yet. We have a very large camshaft and milled heads to test when we're done with the TSP parts, otherwise it wouldn't be needed on this engine. (I don't like flycut pistons with spray either)
The Fast 92 and 90mm TB has been used from the start for intake design consistency during pulls. If we have time, we may do one or two LS6 intake - Fast comparisons with H/C. The idea is to show testing done with less intake and exhaust restrictions to show gains (or losses!) from actual individual parts swapped.
08-31-2008, 03:54 PM
#96
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id like to see those headers matched up against 1 - 7/8 hookers with the power spears. But also we have to remember most cars will go throo an exaust too so maybe the power spear effect wont be worth as much.
And TSP, please dont tell me my 233/239 aint **** anymore compared to these new cam's. I dont think my heart could handle that kindof let down.
And TSP, please dont tell me my 233/239 aint **** anymore compared to these new cam's. I dont think my heart could handle that kindof let down.
08-31-2008, 04:26 PM
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The timing has been untouched from the base tune which is 26-28 degrees during the pulls. We're not using knock sensors and don't want to risk hurting the motor because of inconsistencies in local pump gas quality during the stress incurred while doing these dyno tests. Same reasoning why anyone would run a mix of race gas at the track but not on the street.
If anything higher octane when unnecessary will make less slightly less power.
As far as flycutting, yes I flycut this particular motor .080" Intake and Exhaust, but we're not close to needing those reliefs just yet. We have a very large camshaft and milled heads to test when we're done with the TSP parts, otherwise it wouldn't be needed on this engine. (I don't like flycut pistons with spray either)
The Fast 92 and 90mm TB has been used from the start for intake design consistency during pulls. If we have time, we may do one or two LS6 intake - Fast comparisons with H/C. The idea is to show testing done with less intake and exhaust restrictions to show gains (or losses!) from actual individual parts swapped.
If anything higher octane when unnecessary will make less slightly less power.
As far as flycutting, yes I flycut this particular motor .080" Intake and Exhaust, but we're not close to needing those reliefs just yet. We have a very large camshaft and milled heads to test when we're done with the TSP parts, otherwise it wouldn't be needed on this engine. (I don't like flycut pistons with spray either)
The Fast 92 and 90mm TB has been used from the start for intake design consistency during pulls. If we have time, we may do one or two LS6 intake - Fast comparisons with H/C. The idea is to show testing done with less intake and exhaust restrictions to show gains (or losses!) from actual individual parts swapped.
Ok, thanks for clearing that up.
