<![CDATA[LS1TECH - Camaro and Firebird Forum Discussion - Dynamometer Results & Comparisons]]> https://ls1tech.com/forums/ Dyno Records | Dyno Discussion | Dyno Wars en Sun, 24 May 2026 18:30:04 GMT vBulletin 60 https://ls1tech.com/forums/images/misc/rss.jpg <![CDATA[LS1TECH - Camaro and Firebird Forum Discussion - Dynamometer Results & Comparisons]]> https://ls1tech.com/forums/ Disappointing Dyno Results https://ls1tech.com/forums/dynamometer-results-comparisons/1984876-disappointing-dyno-results.html Tue, 19 May 2026 11:14:21 GMT Dyno Graph
Dyno Graph
I had my car on a mustang II dyno this weekend with some disappointing results. I’m hoping someone here can help point me in the right direction for fixing it. Texas speed shortblock, aluminum 5.3 sleeeved and bored to 4.125”. 4” stroke, wiseco -2.8cc pistons, 0.051” head gasket, 11.5:1 compression. LS7 heads ported by Texas speed 265cc intake, and milled to 69cc chamber, PAC 660 springs, factory intake valves and hollow stem exhaust valves. MSD intake, ported with 102mm TB. 1-7/8” headers. Cam is a Pat G. Stage 2 LS7 cam with 240/252 duration 112 LSA 108 ICL, when I degrees the cam it showed 106 degree ICL. Johnson 2110r lifters, Texas speed 7.825” pushrods, it has .040” preload on the intake and .030” on the exhaust. Yella terra rocker arms. TKX trans with 3.73 rear gears. It runs and drives great, quiet valve train. No misfires on the dyno. I’m really scratching my head here and hoping someone has some insight as to what may be wrong.
]]> Gries https://ls1tech.com/forums/dynamometer-results-comparisons/1984876-disappointing-dyno-results.html 406 Hydraulic to Solid Roller cam results https://ls1tech.com/forums/dynamometer-results-comparisons/1984789-406-hydraulic-solid-roller-cam-results.html Fri, 08 May 2026 21:26:46 GMT When I first had my 406 on the Dyno it made 545 rwhp. I had my old drag radials on the car for tuning. I replaced my drag radials and with the new drag radials on I put it back on the Dyno and it... When I first had my 406 on the Dyno it made 545 rwhp. I had my old drag radials on the car for tuning. I replaced my drag radials and with the new drag radials on I put it back on the Dyno and it made 526 rwhp. The new tires were stickier and softer and wrinkled more during a pull . Both sets set at 25 psi.
My original cam was an old comp cam grind for a stroker.
247/255 624 /624 on 114LSA
The solid roller is a cam motion grind .
250/266 680/642 on 114LSA , .010 hot lash
The solid roller made around 20 rwhp peak than the Hydraulic and carried to 7400 before it started to fall off.
Attached Thumbnails
Click image for larger version Name: IMG_20260505_145046421.jpg Views: N/A Size: 6.13 MB ID: 731705  
]]> zzracer https://ls1tech.com/forums/dynamometer-results-comparisons/1984789-406-hydraulic-solid-roller-cam-results.html