ITB Miata First dyno of new 6.8L Stroker
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- Опубликовано: 17 окт 2024
- I was finally able to get the new stroker motor on the dyno to chase peak power. I ran it at Lime Rock with a super safe street tune that was only 470/418 and finished up the session a bit early with 498/481 with the timing put back into it. I really wanted my 500 whp but lost a coil that ended the session.
Stover Machine built 6.8L stroker short block
Icon Pistons
GM stg. 3 LS7 cam 233/276 .595/.595
Bone Stock 243 cathedral heads (all I had available on short notice)
Speedmaster ITBs
MS3x ecm
1.75" long tubes
Read the thumbnail and for a sec thought you somehow stroked a bp/b6 to nearly 7L 😂
mmm, trumpets
Pretty sweet. I think there is some work to do on your acceleration enrichment map.
@@detaart yep, got it smoothed out after the VE table was roughed in. She's snappy and clean now
@@BMcNemar awesome. It's a pretty big motor in a pretty small car haha. Been able to go for a drive yet?
@@detaart yeah after the tune up it's a whole new monster. Packing for Pitt race this weekend so they'll be video next week
How’s the weight distribution on the build? Dont get me wrong an LS is light and small for a V8 but still way more than what came stock.
@@djasseater2262 52/48 so a few% difference. LS weighted 385lbs vs. 305 for the stock BP motor so it's something but not the 200lbs everyone thinks. Trans and diff add more weight than the engine
@@BMcNemar no joke thats sick, figured it would be wayyy worse but tbh thats great. Not shocked tho, u said crate motor so i kinda figured it wasnt some junkyard iron block swap.
How did you fix the tire smoke? Strap down harder? Weight in trunk? Belt dressing on rollers? I may have the same issue with the new motor. 🙂
@@grubinski these mustang double rollers can be tricky. Key is to pull the tires into the rear rollers so it climbs into the front roller pulling itself down. If it's too much into the front roller it'll try to climb out of the v
Yeah I found that out after the last session, still learning how hard I need to cinch it down though. All my prior experience has been on single rollers
Where did you get the engine from originally? What is its exact specifications I'm very curious.
@@45ok73 the block is an LS3 this particular one was a gm 480hp crate motor
K1 4" stroke crank
TSP H beam rods
Icon flat top forged pistons
Stock 243 heads (big bottle neck)
Gm stg3 ls7 cam
Speedmaster ITBs
Megasquirt ECM
Fic 1000 cc injectors DW 300 pump
@@BMcNemar interesting, very cool! Amazing car good luck with the build going forward.
Needs flames from tail pipe
@@RPMLegends18 it's got some real nice pops on over run