i think the fact that you changed all the other parts basically supports my "debacle" comment- I did not make it in any way to rip on your car or anyone elses. I just was warning the op to watch out- so long as he knows what he is getting into i'm sure the gen II can be a good starting point etc. (however, he said he had talked to Adam and the bugs had been worked out... sounds like recipe for disaster to me).

I'm aware of the weights of the cars.

As far as how fast my car is or the dyno numbers- neither are known yet. I've had the car briefly on the dyno with a bad maf and bad fmu (made 280 hp and 320 ft. lbs at 2800 rpms on dyno dynamics) and other than that have driven it exactly once... I am expecting to equal nitrogenbalances 330-350 whp numbers with 370-390 ft. lbs on an "easier" dyno when i get a few more things organized on the car. I also have plans for a substantial air-water intercooler system which i hope will be able to make those numbers sustainable enough so that i don't see the awful heat soak power loss other gen I cars are known for. I will likely be using a pair of stock cobra mustang heat exchangers and a large intercooler core. I already have test fit using a single heat exchanger and determined it will be possible to fit a large core where the stock airbox used to be. I hope to also find a way to vent a bit of air there (cowl hood effect).

My only other plans for this year is either to add methanol (if the intercooler doesn't get the temps as low as i want) or a 35-50 shot of nitrous.

I will likely go centrifugal within 2 years if things hold together etc., but don't want to go further than that (goal there would be 450 hp at the wheels) until the car is paid off in january of 2010. At that point it will either be for sale or i will def. try to build a 55 up prior to swapping. Of course if i blow the motor i'll just do the regular 55 swap then and be basically forced to do the centrifugal as soon as possible at that time.

c55- you weren't posting how he improved it. In fact, neither of you really have. At this point the op is still completely lost...

-drew

 

Because that part I'll gladly leave to Mike. I saw the car in person at MIR and he explained everything possible to me. It's the way the kit should have been made in the first place which Mike improved upon.

 

450whp? Modded Gen I? I gotta see that! Sounds pretty optimistic to me!

Heat exch,exhaust? I gotta see this. Good luck and hope you succeed.

 

SHHHHhhhhhhhh!

 

 

450whp? Modded Gen I? I gotta see that! Sounds pretty optimistic to me!

Heat exch,exhaust? I gotta see this. Good luck and hope you succeed.

if you reread the sentence before that- I won't expect those numbers without going centrifugal. The gen I is a great starting point for that imo. Plus remember i'm not afraid to use nitrous (although, i would certainly expect those numbers without it- but know that it will be on the car at that point as well).

You can leave it up to him- honestly, it's all good since i've already gone a different route etc. and really wouldn't have wanted to pay the extra amount i would have had to in order to go gen II in order to make his listed power numbers anyways. I'm just maintaining that without that information being common knowledge my saying the gen II kit is something for the op to avoid is still the right call in his/her best interest.

-drew

 

So far 345whp w/4.3L has been reported by Josh K with his centrifugal setup.

Greg C with the 5.5L motor got a reported 380whp with the same setup.

If you can get 450whp(over 500bhp) plus intercooling, minus nitrous,and without having to pay a ton extra vs buying the Mike modded Gen 2 kit with the centrifugal setup,I'll give you my car to do this miracle and I'll of course pay you.

I say you'll at least need the 5.5L to do it. Again sounds pretty optimistic! I say I'll get 450whp with the Mike modded gen 2 kit b4 you optimistically get 450whp with a 4.3L using whatever centrifugal setup you want. Good Luck! You tell me turbocharged then you'll get no debate from me.

Adding 225whp to a C43(228 to 235whp stck) then I'll say you're the man!

 

are you suggesting that you know the motor won't hold enough boost for 450 whp?

 

No,but in your head I feel you are assuming that I am saying or even suggesting that. Did'nt you read where I clearly say" turbocharged"you'll get no debate from me"


I'm said clearly that your planned setup will have a hard time allowing you to post 450whp. You have mentioned nothing as far as ugrading SW,upgrading the exh,cams,headwork ,or anything that would make me even think you could even attempt to make that much HP. All we heard is that you are going to attempt adding an intercooler or aftercooler and at some point use a centrifugal charger. Maybe I should assume those things but we'll still have to see. No question you could do 450whp with a 5.0L and less add ons or work(compared to centrifugal) or with a 5.5L motor/both with a positive disp charger.

This is all for you to prove to yoursef as far as I'm concerned. I of course am skeptical. However I hope that you will definitely make some good progress I know this undertaking of your will be very interesting. Keep us all posted.

 

i see where you are coming from- yes, i will do the things that go with the other mods at each stage. similar to how i am now and without really including them in my "plan" (ie- my current exhaust work).

I dont' know that the stock heads won't flow enough or that the stock exhaust manifolds won't either- those two things are both potential expensive roadblocks. other than that, it "could" be somewhat straightforward.

for now i hope i can reliably and consistently hit close to 350whp/400wtq with the stuff i can afford for this summer.

 

Carl,

I think 450 whp is possible on the 4.3L, as is anything with enough money. I'm sure you remember a few years back when a 500 or 600 horsepower 4G63 was king of the food chain. That simply isn't the case any more. As these cars lose value (which unfortunately for us, they are), people are going to start digging their fingers in and we'll really see where these cars can go. Four or five years ago, only a few people knew how to make EPROM chips for the DSM's and now I know people who burn new chips for their cars on a weekly basis. It is all a cycle and I think we're going to slowly see that grab hold with the early AMG cars.

I'll be graduating with my Mechanical Engineering degree in a month and finally getting a real job. I'm potentially looking at a 65 mile trip to work every day and I don't want to subject the C43 to that, so I may be looking for a Jap 4-cylinder to handle the daily duty. At that point, the C43 will fall under the knife and I've started mapping out where I want to go. I think we're going to see some sweet C43's in this forum over the next year or so. I get excited every time I read these threads because we're on a relatively new path. If you want to make a powerful DSM, there is a connect-the-dots plan for doing that. We don't have that over here, so I'm really enjoying the discussions. I've got too many toys and not enough money, but I'm looking forward to jumping into the fray with you guys soon. Just thought I would throw that in there about how the modifications evolve with the community. Good luck guys.

 

don't get me wrong- i don't have a big budget for this project nor have i spent much yet

 

I'm not saying and never said that 450whp can't be made with the 4.3L M113 motor F/I. I'm saying that with a centrifugal setup it would be difficult to do even though it has been done on the E46 M3 3.2L motor by activeautowerke with the crappy rotrex S/C with a FMIC. The E46 M3 also has a better flowing head than the M113 V8 heads. With a positive displacement setup I feel Silence has a better chance especially if cams,SW, and exhaust mods are added. Even some intake and cylinder head mods as the frosting on the cake. OH and not to mention this special W211 E55 MAF(cough cough) that he claims to have. If one even exists

But hey if he can do it then I'm wrong. I will be watching and only wish him nothing but success. I just think his goal is easily attained with a modded HPS Gen II and cheaper as well. If he has deep pockets maybe he could reach it with the CF setup but it will be more expensive vs the pos displ setup and more of a challenge IMOP. Not worth it for me.

If you turbocharge the 4.3L motor 450whp is a burp.