[KingLT1]

Just sharing info...no dog in this hunt.

[6spdhyperblue]

Yeah his info on that intake is a head scratcher from the start. I’ll say this, I wouldn’t port the lt2.

The ports are good out of the box, I wouldn’t touch it. If he’s taking a lot of material out like porting a lt1, thatll make it lose power. So to me, the real comparison is a pray ported LT1 vs a stock LT2 with only a ported snout to match the 95mm. I’ll take the stock LT2 all day.

The reason I say this, is my track numbers match gpi dyno number gains. GM has published the results of the lt2 vs the lt1.

I really question a lot from those shops these days unfortunately

[Sillysspeed]

Lt2 is easy small economical gain in hp. Especially if you clearance it and add brake booster yourself. I got back to back data on same road and similar air. It was worth a tenth and 1.5mph on my stock car. No tune

[6spdhyperblue]

Originally Posted by Sillysspeed

Lt2 is easy small economical gain in hp. Especially if you clearance it and add brake booster yourself. I got back to back data on same road and similar air. It was worth a tenth and 1.5mph on my stock car. No tune

Yep

[khcoaching]

For my needs, it worked amazing. I needed more power over 5800 and it delivered for road course work. Data doesn’t lie…

Red is LT2

[Sillysspeed]

Originally Posted by 6spdhyperblue

Also how did my blue car nearly hit 127 mph full weight with only rear seat out? Stock front wheels. I just don’t see that being possible if the LT2 lost power.

Also worth mentioning, I have a pray ported LT1 here on the shelf. It’s a good option for stock appearance. But it’s been on the shelf for like three years.

I don’t sell these so I’m not that partial as well. I will say this, there should be no money to made in porting them

If you want to sell that prey ported lt1 lmk. I went with a Procharger and had to switch back to the stock intake (lt2 won’t clear the lt4 hpfp).

[BlackbeastSS2]

I tried it and my take away if you can’t afford the MSD go with the LT2. If GPI test result are accurate then I say the LT2 is worth its money for a budget minded person. Plus the look of the LT2 with cover is way better looking than the stock LT1 in a purely cosmetic point.

I think GPI covers this pretty good.

https://youtu.be/bt55yZGEdoE

There are mods that are worse or really don’t do anything. So many companies and people port, it’s like dyno runs at different shop always subjectable & and based on how well they do it. Porting makes a difference in high performance builds and not so much in low power builds IMO.

[s346k]

i went from a pray ported lt1 to a stock lt2 with a stock tb on both. the car picked up 1.5+ mph. no changes to the tune.

[red6.2]

lt2 manifold makes more power than lt1 manifold! It may not be better than msd, but its a improvement over lt1. its why the c8 has it...

[red6.2]

Originally Posted by 6spdhyperblue

Yeah his info on that intake is a head scratcher from the start. I’ll say this, I wouldn’t port the lt2.

The ports are good out of the box, I wouldn’t touch it. If he’s taking a lot of material out like porting a lt1, thatll make it lose power. So to me, the real comparison is a pray ported LT1 vs a stock LT2 with only a ported snout to match the 95mm. I’ll take the stock LT2 all day.

The reason I say this, is my track numbers match gpi dyno number gains. GM has published the results of the lt2 vs the lt1.

I really question a lot from those shops these days unfortunately

"they're hungry!"

[KingLT1]

I am not saying it's not worth it. I have seen plenty of folks report gains with it over the years. I just think it's funny and had to share since it's slow in here.

If you want my opinion, I think Brett is over the "bolt-on" game and has focused his business model on selling parts that support growth and higher dollar packages. More money spent per customer. So this is just a marketing ploy to get folks to buy an MSD or Highram because in the end they better support a Heads/Cam and/or larger cube setup.

[sr71bb]

Ok Boys well I have had a three typical combos as far as manifolds go. The STOCK LT1 manifold ran out of steam around 5800 RPM. When I switched to a LT2 manifold , it moved the power band up to roughly 6200 RPM and about 15 MORE HP. Now porting the LT2 manifold did virtually NOTHING so I dont reccommend that.

My last variation was an MSD manifold because I put in a 419 stroker motor with a fairly large cam (GPT NFT cam) and I felt like it needed MORE air . Porting THIS manifold also showed very small gains. So with THIS combo, peak power is about 6500 RPM (roughtly 580 RWHP) with stock converter and A10 tranny.

Car is a beast on a road course where RPM RARELY falls below 4800-5000 RPM.

[sr71bb]

Ok Boys well I have had a three typical combos as far as manifolds go. The STOCK LT1 manifold ran out of steam around 5800 RPM. When I switched to a LT2 manifold , it moved the power band up to roughly 6200 RPM and about 15 MORE HP. Now porting the LT2 manifold did virtually NOTHING so I dont reccommend that.

My last variation was an MSD manifold because I put in a LME 416 stroker motor with a fairly large cam (GPT NFT cam) and I felt like it needed MORE air . Porting THIS manifold also showed very small gains. So with THIS combo, peak power is about 6500 RPM (roughtly 580 RWHP) with stock converter and A10 tranny.

Car is a beast on a road course where RPM RARELY falls below 4800-5000 RPM.

[jlaudio11]

Originally Posted by KingLT1

I am not saying it's not worth it. I have seen plenty of folks report gains with it over the years. I just think it's funny and had to share since it's slow in here.

If you want my opinion, I think Brett is over the "bolt-on" game and has focused his business model on selling parts that support growth and higher dollar packages. More money spent per customer. So this is just a marketing ploy to get folks to buy an MSD or Highram because in the end they better support a Heads/Cam and/or larger cube setup.

He's all about porting and selling that service, the lt2 doesn't benefit from it like the other intakes do. If he isn't making money off it, no reason to push it, which I get. Going hard into why it's "so bad" is just his personality it seems.