View Poll Results: How much power on stock heads with m6 228r cam
Multiple Choice Poll. Voters: 10. You may not vote on this poll
228r m6 owners come in please
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
228r m6 owners come in please Dyno tuned my 01 z28 m6 a couple weeks ago, it made 385/366
stock ls1 bottom end stock 241 heads
228r .600/.600 112 lsa
SLP lid
tuned on speed density
speed engineering 1-3/4” longtubes
speed engineering 3” y pipe
SLP 2.5” powerflo axle back
fast 36# injectors
racetronix 255lph pump
I figured I would have made at least 400 wheel, anyone else have similar experiences ?
Here’s a 50-100 speedo run for reference. Car hauls *** and feels great not disappointed in the slightest. I will need new tires very soon 😬🤣
https://www.dropbox.com/s/oaytttojkv...%20PM.mov?dl=0
stock ls1 bottom end stock 241 heads
228r .600/.600 112 lsa
SLP lid
tuned on speed density
speed engineering 1-3/4” longtubes
speed engineering 3” y pipe
SLP 2.5” powerflo axle back
fast 36# injectors
racetronix 255lph pump
I figured I would have made at least 400 wheel, anyone else have similar experiences ?
Here’s a 50-100 speedo run for reference. Car hauls *** and feels great not disappointed in the slightest. I will need new tires very soon 😬🤣
https://www.dropbox.com/s/oaytttojkv...%20PM.mov?dl=0
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
yessir. Stock ls6 intake stock heads. Wish I did heads intake but I made a goal for the second week of September and busted *** on side jobs for one month straight to make it happen. Ended up spending an extra 1000-1500$ ish on extra stuff. Ran out of money and wanted it done
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
yessir. Stock ls6 intake stock heads. Wish I did heads intake but I made a goal for the second week of September and busted *** on side jobs for one month straight to make it happen. Ended up spending an extra 1000-1500$ ish on extra stuff. Ran out of money and wanted it done
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
hp car of similar weight.
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TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
Correct. A dyno is a tool nothing more. You can use it to measure gains on your personal vehicle but to use it to measure quarter mile times is silly. There are classes out there that cant make many engine modifications at all, 400 horsepower cars and running deep 10s. It's mostly about how you set it up. All in the combo.
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Verdad Gallardo Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
Correct. A dyno is a tool nothing more. You can use it to measure gains on your personal vehicle but to use it to measure quarter mile times is silly. There are classes out there that cant make many engine modifications at all, 400 horsepower cars and running deep 10s. It's mostly about how you set it up. All in the combo.
TECH Senior Member
Joined: Jun 2016
Posts: 22,307
Likes: 3,622
From: Central Cal.
100% agree it’s all in the combo. That’s why when people get hung up on dyno numbers, I tend to tell them it doesn’t really matter how much the dyno said it makes. It can vary car to car dyno to dyno temp to temp altitude, DA, humidity, ect.. for example, I’ve rolled against a terminator cobra 03 full exhaust, ported blower, big tire. Pulled almost 2 cars. Vs a 09 gt500 full exhaust stock blower I did pull 2 cars. Even pulled a car and a half on a 2014 mustang gt with the track pack, full exhaust - tune. Made 420/380 not to mention the car is gutted excluding the passenger seat.
AND the fact that dynos are for COMPARISON, NOT absolute numbers!. If your stock combo shows 75rwhp on the dyno and it shows 125 with mods, the 50rwhp gain is ALL you need to look at. Not that I would go back to that particular dyno... sheesh that's embarrassing... LOL
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
Gospel!! THE COMBO!!
AND the fact that dynos are for COMPARISON, NOT absolute numbers!. If your stock combo shows 75rwhp on the dyno and it shows 125 with mods, the 50rwhp gain is ALL you need to look at. Not that I would go back to that particular dyno... sheesh that's embarrassing... LOL
AND the fact that dynos are for COMPARISON, NOT absolute numbers!. If your stock combo shows 75rwhp on the dyno and it shows 125 with mods, the 50rwhp gain is ALL you need to look at. Not that I would go back to that particular dyno... sheesh that's embarrassing... LOL
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
nice car dude! It was at 6500 rpm. I did dual titanium valve springs .650 pac #199’s, 7.4” chromemoly pushrods, BTRv2 trunnion upgrade kit, 36# fast injectors, 255lph racetronix fuel pump with hot wire kit. I went for the full send tune and full send set up. Also ls2 timing chain. I’m not afraid to hit limiter at 6800 in first every now and again.
Launching!
Joined: Aug 2020
Posts: 205
Likes: 70
From: Phoenix AZ
Thanks
I have the Smith brother Truion upgrade and 42lb injectors I do not go over 5500 RPM no need very drivable setup - enjoy the torque up to 5000 RPM.
Car is very capable with BMR trans mount spins tires and no wheel hop
I have the Smith brother Truion upgrade and 42lb injectors I do not go over 5500 RPM no need very drivable setup - enjoy the torque up to 5000 RPM.
Car is very capable with BMR trans mount spins tires and no wheel hop
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
oh man you’re missing out. The 228r peaks at 62-6300 minimum. My car blows the tires off in 1st gear no matter what, and blows the tires off on a 1-2 shift. I shift at 6500 rpm. Ls1’s are more than capable of 6500 rpm runs with 0 issues at all
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
228r will always be a drivable set up when tuned properly. Especially on 112 lsa... stock suspension wheel hop Is worn out parts. My car was completely stock and still is suspension wise, 0 wheel hop at all.
Thread Starter
Staging Lane
Joined: Sep 2020
Posts: 27
Likes: 11
yessir. I was reading that 1-7/8” won’t make that big of a difference but the 2.5” axle back with 3 mufflers is probably what robbed the power. It is what it is, the car isn’t crazy loud and has absolutely 0 drone. I love it. I’ll sacrifice 15 hp for that