Forged 418 ls3. Goal: 800ish rw daily, 1000-1500capable. Lets talk boost..

[Jr]

What state are you located in? There are a lot of talented builders all over the US. Kurt urban is one builder I would definitely use.

[69x22]

I'm running a 416 with a F1A Pro Charger with a very mild cam it makes 834 RWHP, sits in traffic without even thinking about overheating and gets right at 19.5 mpg out on the highway. With a meth. Kit it will make over 900RWHP, but Im happy with 834.
Either way you go there will be pros and cons. Pro Chargers rob allot of horsepower but you don't have the heat and plumbing issues that you do with a turbo set up. Turbo will easily make more power and defiantly looks cooler.
My experience running the autocross with that much power is that it is more like drifting because of the traction issue.

[J2SpeedandCustom]

We just put a 418 from Texas Speed into a 02 TA. Through the 4l80e unlocked it made 471 NA on pump. 3600 stall the car drives awesome! No surging, stalling, etc. this is with their LS7X cam.

I believe 100% that the "Tuner" is worth his/her weight in gold. I believe I have one of the best around he always delivers! No matter how calm or crazy the setup the "tuning" makes or breaks the whole deal.

[irishlsxer]

Originally Posted by 69x22

I'm running a 416 with a F1A Pro Charger with a very mild cam it makes 834 RWHP, sits in traffic without even thinking about overheating and gets right at 19.5 mpg out on the highway. With a meth. Kit it will make over 900RWHP, but Im happy with 834.
Either way you go there will be pros and cons. Pro Chargers rob allot of horsepower but you don't have the heat and plumbing issues that you do with a turbo set up. Turbo will easily make more power and defiantly looks cooler.
My experience running the autocross with that much power is that it is more like drifting because of the traction issue.

Think there Are there any belt-less drives out there that are worth looking At? How does the power come on as your rpms climb? Define mild cam? WhAt psi? apologies if I missed any of this in your build thread. Any sputtering or surging at all ever? I guess a tvs or something won't make 1000hp+ easily huh? Isn't stielow running that 67 around 800whp. I'm a far cry from having his driving skills, but he seems to keep it between the cones nicely with that much power.

[irishlsxer]

Thanks for the opinions guys. I feel like ive somewhat got a grip on the situation and I'm honestly fairly close to a decision. I have a very decent boosted LS guy here locally and he and I have already collaborated on a few things including a 408 lq9 topped with a Kenne bell 2.8l (Search my thread posts and you'll find the picture). It made 700whp in Denver (which is where this current car is being built) in a 4700lb suv on 22's,

however, to your point J2, its a little choppy and ever so slightly surge prone. I still wonder if it was the tune. It has all the proper supportive fuel system mods and everything and really runs almost perfect for the most part. Only In hot stop and go does it run anything but like butter, and even then never dies or anything. I cant remember the cam specs but ill look. It's not a big one I'm sure. Even The dynograph was nice and smooth. Anyway, basically Im shooting for as close to STOCK drivability as possible and ill take concessions where I have to.

[69x22]

Originally Posted by irishlsxer

Think there Are there any belt-less drives out there that are worth looking At? How does the power come on as your rpms climb? Define mild cam? WhAt psi? apologies if I missed any of this in your build thread. Any sputtering or surging at all ever? I guess a tvs or something won't make 1000hp+ easily huh? Isn't stielow running that 67 around 800whp. I'm a far cry from having his driving skills, but he seems to keep it between the cones nicely with that much power.

No belt-less drives unless you go with a couple turbo s. A Pro Charger does have a bit of lag at first mine starts coming in hard around 3k, I shift at 6500. It will break the tires loose at 50 in 3rd gear and makes this power with 16psi of boost. If you are putting this in a SUV I would go with a twin turbo set up. I had the tuner ride around with me for 45 minutes tuning inthe driving part so I have no issues there. You need to find a good tuner that has patience to dial it in for you. So many of them think they are done after you dyno it and get the power out ofIt but they need to ride in the car drive it for a while to work out the kinks.

[irishlsxer]

Originally Posted by 69x22

No belt-less drives unless you go with a couple turbo s. A Pro Charger does have a bit of lag at first mine starts coming in hard around 3k, I shift at 6500. It will break the tires loose at 50 in 3rd gear and makes this power with 16psi of boost. If you are putting this in a SUV I would go with a twin turbo set up. I had the tuner ride around with me for 45 minutes tuning inthe driving part so I have no issues there. You need to find a good tuner that has patience to dial it in for you. So many of them think they are done after you dyno it and get the power out ofIt but they need to ride in the car drive it for a while to work out the kinks.

It's a car and bears a striking resemblance in general shape anyway to yours. I hear you about the tuner. He was pretty patient but my current could use more tweaking for sure.

[camcojb]

As much as I like turbos, if my goal was autocrossing I would not be using turbos. Boost isn't always there and I think it would go from a soft pedal response to frying the tires pretty quick. I'm sure turbo sizing could help with that, but it'll never match a roots or n/a setup for predictable throttle response, which is key with an autocross car.

My next track car will probably be a roots type blower.

[Jr]

Originally Posted by camcojb

As much as I like turbos, if my goal was autocrossing I would not be using turbos. Boost isn't always there and I think it would go from a soft pedal response to frying the tires pretty quick. I'm sure turbo sizing could help with that, but it'll never match a roots or n/a setup for predictable throttle response, which is key with an autocross car.

My next track car will probably be a roots type blower.

Jody,
Which roots blower would you buy if you had to buy one right now?