3.8L Procharger Beta testers

[MachPerformance]

Hey everyone,

Sorry for the delay in logging in and posting something in regards of this new kit we have in development for you guy/gals. I will try to answer as many of your questions as possible during the course of this but please do not take offense if I don't reply right away, it is the race season and we at the shop are working late. Please post in this topic your questions and i will reply to them as we go.

Thanks,

Bill Mach/Mach Performance, Inc.

[12secondv6]

Welcome!!!
Nice site, we do appreciate the work involved in this.
You guys love the 4.3 truck motor huh? :D
How much power can you realistically make out of them? Do you ever get a chance to run one bone stock vs blower times? I'm just curious

[TheBeast]

Thank ya much, sir. I heard you are working pretty hard on some nice trucks, so I hope that goes over well. Now I'm sure you'll get swamped with questions by our friend John, BUT I'll try and sneak one in first. :D

Do you have any idea how much boost (if any) will be present under normal cruising conditions? Assume 70mph @ 2200 rpm. I don't do TOO much highway driving, but just curious.

Thanks

[TealV6]

Welcome Bill! I'm sure the gang will keep you very busy with questions.

Steve

[John_D.]

Ok, so they warned you about me already... I do have a lot of questions, but I'll start out slow and go easy on you, with questions in just two areas for now.

Does the IAT sensor get relocated into the boosted (hot) section of the intake, to read the true air temp the engine will see, or does it stay in the cool side? Will it hold up to a couple hundred degrees for extended periods of time? Will it trip an SES by reading such a high temp? Or do we just let it see the outside air temp, so the maf sensor reads the correct air flow, since the maf is just a heated wire that gets cooled off by incoming air, and the pcm calculates the temperature difference to determine the air flow?

The drive belt -- is it stock, or wider? Does the kit use a second belt on a second pulley, or does it tag along on the one belt? Does it run on the ribbed side or the flat side? How much of the pulley does the belt wrap around?

[ June 05, 2002: Message edited by: John_D. ]</p>

[MachPerformance]

<blockquote>quote:</font><hr>Originally posted by 12secondv6:
Welcome!!!
Nice site, we do appreciate the work involved in this.
You guys love the 4.3 truck motor huh? :D
How much power can you realistically make out of them? Do you ever get a chance to run one bone stock vs blower times? I'm just curious<hr></blockquote>

Yeah the little 4.3L V6 is a fun one to work on. We've had some great results stock to full wild like mine and others. On 17-20 psi these motors will make 600 hp with the F1 Race Procharger kit we sell for them. Our blower system on a stock engine with headers and exhaust, MAF and cal makes 301.4 RHWP on a Superflow dyno which is the same as a Mustang dyno. These trucks run anywhere from 15.90's to 14.90's naturally and when blown will run mid to high 13's at 101-102+ mph. Modded engine ones well...high 10's to low 11's maybe faster getting it to the ground is another story. :D So based on the similarities in ET's for the truck and your cars I'm assumming similar results for 1/4 mile times.

Bill...

[ June 05, 2002: Message edited by: MachPerformance ]</p>

[MachPerformance]

<blockquote>quote:</font><hr>Originally posted by John_D.:
Ok, so they warned you about me already... I do have a lot of questions, but I'll start out slow and go easy on you, with questions in just two areas for now.

Does the IAT sensor get relocated into the boosted (hot) section of the intake, to read the true air temp the engine will see, or does it stay in the cool side? Will it hold up to a couple hundred degrees for extended periods of time? Will it trip an SES by reading such a high temp? Or do we just let it see the outside air temp, so the maf sensor reads the correct air flow, since the maf is just a heated wire that gets cooled off by incoming air?

The drive belt -- is it stock, or wider? Does the kit use a second belt on a second pulley, or does it tag along on the one belt? Does it run on the ribbed side or the flat side? How much of the pulley does the belt wrap around?<hr></blockquote>


Hey John,

On the IAT we try to place them on the pressure side to see actual MAT's but sometimes not always feasible. Fortunately, the Procharger systems we develop are only intercooled and even at 10psi there is only a 25-35 degree rise in MAT above ambient. That is one of the reasons for such a large intercooler. Also the MAF being that it is part of the throttle body will see all airflow, (boosted), and meter it properly. On our truck our MAF's see 15-20 psi blow through and we haven't broken the heater element yet...so they are pretty tough.

The drive belt will run rib side off the stock serpetine, that's all i'll say for now ;)

Bill Mach/Mach Performance, Inc.

[John_D.]

Bill - Thanks for the IAT and belt answers.

I have another question for now, which I think is related to the question above from TheBeast.

Does the power brake booster and cruise control work ok, going down the interstate if some boost starts coming in? (does boost start building with higher rpms while still at part-throttle, or does it build boost only at WOT?) Wondering if a vacuum canister or vacuum pump is needed so the vacuum accessories will still work properly...

[ June 05, 2002: Message edited by: John_D. ]</p>

[predator5100]

Hey there well as you know the 3.8's are happy for they get their blowers but us 3.4 guys feel left out and really really want onei will pay for the first kti development out right if it's a reasonable price. I'm sure these kits will sell good and would love one. Please say you will develop one for us. I can be the tester and forward the money within the first of the next month. Thanks :D

[Dominic]

What is the maximum safe psi the blower itself can produce?

Also, since IIRC you're going with the new P-1SC, which is a sealed design, is it possible for us to change the supercharger oil to keep it in good working condition - or is it factory sealed and there's nothing we can do to it?

[ June 05, 2002: Message edited by: Dominic ]</p>

[Patrick Javert]

the blower can produce up to 36 psi, and flow 1200 cfm, i think. check ATI's website for specs. www.procharger.com

[ToddBoe]

Alright cool deal finnally some questoins answered I guess i'll fire mine off.

1. I wana know also about if we are gona be running boost at Highways speeds i travel alot ruunin about 75 to 80 which puts me at the 2500 rpm range

2. Is it known yet if we need Injectors or Fuel pump upgrade for us that are gona run the 10 psi? or even more My future plans are to tear down the motor and rebuild it to the L67 specs or bettter so i can run 20 psi of boost I wana get about the most horse i can and still run decent milage? and idea what i can run and acheive this i'd be happy with 26 to 28 mpg Highway i get around 31 now

3.Powder coating? whats the cost gona be on this? for the tubing and such is it gona be avalible?

Hmm well i guess i'm done for now the more technical questions i'll leave to the rest of the guys and well most of them seem like something you wouldn't see happen unless it was a totally new things but since Bill is the man at this i trust his abbilities and skills which i've heard alot about heck i'd like to come see his shop mabey over the winter when i'm not so busy :D

[Patrick Javert]

get new .02 overbore 9.5:1 pistons and get aluminum heads. you can run a full point more compression w/ aluminum heads compared to iron w/o having to worry about detonation, running the same octane gas as you did before. running 10 psi on our motors won't call for bigger injectors, but will probly need a little computer tuning to get everything set up right.

[navyblue2000]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
get new .02 overbore 9.5:1 pistons and get aluminum heads. you can run a full point more compression w/ aluminum heads compared to iron w/o having to worry about detonation, running the same octane gas as you did before. running 10 psi on our motors won't call for bigger injectors, but will probly need a little computer tuning to get everything set up right.<hr></blockquote>
i believe computer programming is involved in the 10 psi kit.
THERE ARE NO ALUMINUM HEADS FOR THE 3.8L SERIES TWO ENGINE. I'VE SEEN YOU POST THAT IN ABOUT 4 DIFFERENT THREADS, I'M TIRED OF SEEING IT, STOP POSTING IT ALREADY! :mad:

[97Pcam6]

what about adding a 50 shot of nitrous to the kit, would that be safe and practical? I mean with the custom tuning there shouldnt be any major problems right? Thanks.