[Mister Will]

While a centri head unit would be out in front of the engine, it is still much lighter than a PD supercharger. Everyone who I know who has a PD S/C, specifically Maggie, has had heat soak issues (one of them last time we talked was thinking of switching over to a centri). So with the PD you will have both weight and cooling issues. Remember, the 1LE was not designed for the cooling of a S/C like a ZL1. Most people like the instant torque, but you can spin out also. The centri comes on gradually and just keeps on giving you power. Since most of your racing is from a roll, you should be able to down shift to get to the necessary rpm range.

Keep in mind, you will be investing $10,000 in a car which will then have a lesser resale value, and a voided warranty.

[DenverTaco07]

i have fun in mine.

[G2K]

Originally Posted by pbsinternet1le

Ask Ron at Vengence what he thinks..sees both...1100hp zl1 1le.. i don't think this was the cheap way to go...

Come on man, obviously thats not a cheap setup... im talking about low levels man, 600-650hp range

[G2K]

Originally Posted by bucknut2006

Don't sell the low end on the centi short. With a good cam, they can make enough torque to rival a PD and they keep building power to redline. The biggest issue I have is that pedal modulation is more tricky than the PD cars I've driven. Both my CTS-V and ZL1 would build boost under part throttle, but the centi is more of an on/off switch.

Ahhh good point never thought about this.

[G2K]

Originally Posted by Mister Will

While a centri head unit would be out in front of the engine, it is still much lighter than a PD supercharger. Everyone who I know who has a PD S/C, specifically Maggie, has had heat soak issues (one of them last time we talked was thinking of switching over to a centri). So with the PD you will have both weight and cooling issues. Remember, the 1LE was not designed for the cooling of a S/C like a ZL1. Most people like the instant torque, but you can spin out also. The centri comes on gradually and just keeps on giving you power. Since most of your racing is from a roll, you should be able to down shift to get to the necessary rpm range.

Keep in mind, you will be investing $10,000 in a car which will then have a lesser resale value, and a voided warranty.

All good points thank you! This is as closest to the answer i was looking for, thanks again!

About your last comment, you are right and many people locally have told me the same... i really regret not being able to wait 4 extra months and just get the zl1 but whatever, whats done is done i have 1le now and not willing to loose so much money on such a short period of time.

Many people recommended me to just go fbo all motor and it true to what it was built for... 500hp on a n/a they say it still will be very fast, fun and no weight penalty... but i dont know... 1st word problems (should i settle for 500 n/a or 600hp FI)

[KingLT1]

Originally Posted by lpe403

Totally agree - I don't care what anyone says about slapping a blower on an LT1 and how great it is - ask any motor builder if they would build a supercharged motor with a high compression setup using non-forged pistons. No motor builder that I'd trust. Duh.

Do the flex-fuel deal with a good tune and you should have a 500hp car.

Otherwise, just buy a ZL1 - otherwise you are turning a cool car into a money pit you will eventually hate.

Any engine builder is not capable of dealing with the LT1. First of it is direct injected, which has much better cooling compared to port fuel injection. That allows for higher compression...about 1 point higher roughly. Also the pistons have oil squirters which really helps keep the piston better lubed and again aids in cooling. So you can throw that old school "can't run higher compression with boost on Hyper pistons" mythology out the window.

[MatthewAMEL]

Originally Posted by KingLT1

Any engine builder is not capable of dealing with the LT1. First of it is direct injected, which has much better cooling compared to port fuel injection. That allows for higher compression...about 1 point higher roughly. Also the pistons have oil squirters which really helps keep the piston better lubed and again aids in cooling. So you can throw that old school "can't run higher compression with boost on Hyper pistons" mythology out the window.

So...the LT4 pistons are forged for no reason?

[pbsinternet1le]

Originally Posted by G2K

Come on man, obviously thats not a cheap setup... im talking about low levels man, 600-650hp range

Just saying these guys know what to do for what ever application you want..

[Swagger]

Originally Posted by G2K

LOl, I totally understand what you say about the Porsche however, you must admit that sometimes some builds just really don't make sense.

on your point about the PD.... my main concern is heat when doing roadcourse... weight distribution is not that bad since the added weight is still behind the front axle (I do track)



My main concern about the centri as I mentioned before is the weight all the way in the front of the car... that can REALLY upset the way the car feels or I would think (I never ridding in a procharged car or even less a procharged 1LE)

600-650 is my target. (pump + meth or just E85 I don't mind either)
I guess I need to see/find one if I'm lucky and try to get a ride....


10K is exactly my budget.... but only show that I have inquiered about.. quoted me 14K from my choice of kit either procharger with Dstg2 IC, headers and pump + alky meth... or a Maggie with headers and pump+meth

I would highly suggest doing meth and a D1Xsetup, a cam would certainly be awesome for the fuel benefits as well. I originally started planning my build with a D1X, Race intercooler & wastegate, cam, meth, headers and drop in pistons. That was well over 15K I wasn't confident of the pistons/rings in the 650+whp range. I have since gone to a F1A and stroker 416 with cam setup. LT4 topside setup and Holley external low side pump as well. I am aiming a lil higher HP wise LOL. But for your needs the D1X setup, meth and headers would go a LONG way for you. Drop in pistons are a must at a min IMO at the 650whp however.

[Swagger]

Originally Posted by KingLT1

Any engine builder is not capable of dealing with the LT1. First of it is direct injected, which has much better cooling compared to port fuel injection. That allows for higher compression...about 1 point higher roughly. Also the pistons have oil squirters which really helps keep the piston better lubed and again aids in cooling. So you can throw that old school "can't run higher compression with boost on Hyper pistons" mythology out the window.

If only that were true LOL... The pistons and in particular the rings on the LT1 are fragile. Thats why we have multiple drop in piston and rod/piston combos out there. Its the weak link and 650whp is the range they rear their head in. Meth is a must and a strong tune. Even then its a chance being taken depending on how hard the car is driven.

[TJay74]

Originally Posted by Swagger

If only that were true LOL... The pistons and in particular the rings on the LT1 are fragile. Thats why we have multiple drop in piston and rod/piston combos out there. Its the weak link and 650whp is the range they rear their head in. Meth is a must and a strong tune. Even then its a chance being taken depending on how hard the car is driven.

The part in bold is true for any build and or mod to a vehicle. It always depends on how hard the end user is going to beat on the vehicle, forged pistons or hyper pistons.

Remember, in the end GM had to build the LT4 for the masses of people, some of those people take care of their cars and some dont. Most will run the right fuel and respect the car, some out there will run 87 and go beat on the car.

S/C 650hp with hyper pistons in that kind of customer base dont mix well, so forged pistons are the answer.

People have been putting a S/C on hyper piston engines since before the LSx series engines. Sure they have been some failures, but there are plenty out there with miles on them and still going.

My 1LE is more than likely getting a Whipple next year, I am not after the "most HP possible" end goal. I am just after a nice bump without tearing into the engine with reliable power. I am just after a fun street car that puts a grin on my face each time I get into it.

[pbsinternet1le]

43k for a 1le plus 15k mods...so close to zl1$$$..

[bucknut2006]

Originally Posted by TJay74

The part in bold is true for any build and or mod to a vehicle. It always depends on how hard the end user is going to beat on the vehicle, forged pistons or hyper pistons.

Remember, in the end GM had to build the LT4 for the masses of people, some of those people take care of their cars and some dont. Most will run the right fuel and respect the car, some out there will run 87 and go beat on the car.

S/C 650hp with hyper pistons in that kind of customer base dont mix well, so forged pistons are the answer.

People have been putting a S/C on hyper piston engines since before the LSx series engines. Sure they have been some failures, but there are plenty out there with miles on them and still going.

My 1LE is more than likely getting a Whipple next year, I am not after the "most HP possible" end goal. I am just after a nice bump without tearing into the engine with reliable power. I am just after a fun street car that puts a grin on my face each time I get into it.

Isn't that what the LSA engines have anyways? I know they don't have the forged ones from the LS9. I personally did the pistons, but the biggest issues are the rings aren't gapped right for a S/C setup and they expand beyond design.

[KingLT1]

Originally Posted by Swagger

If only that were true LOL... The pistons and in particular the rings on the LT1 are fragile. Thats why we have multiple drop in piston and rod/piston combos out there. Its the weak link and 650whp is the range they rear their head in. Meth is a must and a strong tune. Even then its a chance being taken depending on how hard the car is driven.

It is true lol...the stock LT1 pistons seem to be fine handling another 200+whp over stock form. I would say that is pretty good. 650whp is still a lot power...enough to put a car into the low 10 high 9 second range done right. More then enough power for a street car. There is always going to be a chance of breaking something when you start modding Captain Obvious.