SuperCharger Question [Archive] - Cherokee SRT8 Forum

: SuperCharger Question


wannasrt8
08-03-2007, 04:29 PM
Hey everyone, this is actually my first post on here. I have been doing a lot of reading, just not much posting. I am very new to performance modifications side. I have a completly stock GCSRT8 and very interested in adding a suppercharger system to it, most likely the ASM system. My question is what other mods if any do I need to add the ASM system to make everything run smoothly. Can you just add the ASM system and be done, or are there other mods that are manditory to the set up? Like I said, i am very, very new to the performance side, so please excuse my novice question? Any input would be greatly appreciated!!

polidentgrip
08-03-2007, 05:57 PM
I would recommend the ASM system as they chose the Vortech T trim. The Paxton Novi 1500 on a 426 stroker could only make 6 psi today. Better yet, install a turbo for better boost.

navyavi469
08-03-2007, 06:01 PM
There are two types of modders: The ones who are into it, and the ones who just want something fast and don't care how it works.

If you truly want to get into modding, and it sounds like you've got plenty of spare cash lying around if you're going to dig into a blower for your first mod, then start small and work your way up from there. Try doing most of the easy mods yourself.... a lot of them don't involve anything more complicated than a screwdriver or walmart wratchet set.

If you take this route, you'll learn "what" you're doing, not so much as installation instructions, but the reasoning behind the modifications.... How putting on certain parts or tweaking certain parameters affects the power output in various engine setups.

If you just want a "modded" vehicle but aren't really interested in any of the gear-head stuff... pay someone to bolt on your ASM and get a warranty. Better yet, see if your local dealer will put it on for some exorbidant fee... Talk to FASTSRT8, he's got an ASM.

As for if the ASM itself requires any other mods... not at all, most of the radial blower kits sold by speed shops and manufactueres like ATI, Magnusun, Vortech, or Paxton, are all designed to work "stand-alone" on stock vehicles. Adding extra serious modifications may actually cause complications to what you are suggesting, and may require additional tuning solutions... thats a whole other subject on these vehicles.

FastSRT8GC
08-04-2007, 10:12 AM
Send me a PM with any and all questions. ASM for sure is the way to go.

ANd soon the tuners will be out, that will help us squeeze more power and boost out of the kit.

Right now I am at 508 at the wheels @4-5psi and in the high 11's 1/4 mile. But I have heads, cam, headers also.

0-80 the jeep can not be beat on the street!!

navyavi469
08-04-2007, 01:47 PM
508 at the wheels.... must be better than 600 at the motor. I'm curious to see what kind of numbers i'm going to get N/A. I'm hoping at least 450.

At what point are you going to start worrying about shredding a piston as you up the boost?

FastSRT8GC
08-04-2007, 02:16 PM
508 at the wheels.... must be better than 600 at the motor. I'm curious to see what kind of numbers i'm going to get N/A. I'm hoping at least 450.

At what point are you going to start worrying about shredding a piston as you up the boost?


I am worried now. With the smaller pulley on its way, it should push 6-8psi. This should be enough. Any more than that I will be looking for a new block.

My other concern is, can I keep myself from installing the pulley till the programmer comes out. I am sure we can tune for 6-10psi with SCT or Diablo.

I just installed my intake spacers from ASM and my Kenne Bell Boost a pump so temps should be down and fuel is good. I have a huge heat exchanger from a cobra ready for install and a small one gallon gas tank for intercooler colant, that i can fill with Ice to cool it down on race days/nights

http://web.mac.com/drivenphotography/iWeb/Family%20Site/Photos_files/IMG_4037.jpg
http://web.mac.com/drivenphotography/iWeb/Family%20Site/Photos_files/IMG_4039.jpg

UAE
08-05-2007, 02:14 AM
FastSRT8GC
What about using water inj. ?

FastSRT8GC
08-05-2007, 07:27 AM
FastSRT8GC
What about using water inj. ?

I am hoping to tune with out it. If the A/F is really bad than yes I will add it. I am worried about being dependent on it. Lots of horror stories with meth injection. Tank low, pump not working, nozzle clogged, If you tune depending on the water/meth injection and it stops working for some stupid reason.....KABOOM:eek:

Thats why I will do my best to tune with out it. If needed I will use it.

navyavi469
08-05-2007, 07:49 AM
The front lip of our Jeeps is just way too awesome not to have a massive air-air intercooler. I'll wait for the ATI :D

FastSRT8GC
08-05-2007, 10:31 AM
The front lip of our Jeeps is just way too awesome not to have a massive air-air intercooler. I'll wait for the ATI :D


Navy, I am not sure why you want to wait. All the head unit are the same. And once we have the diablo or sct, it will not matter. All the tuning will be per Jeep on a dyno. You will not want a canned tune. Like ASM, a lot of these performance companies will do more R&D geared toward a limited type of car. Unlike Vortech/procharger/ATI that manufacture kits out the wazoo.

I can see your concern with a kit from GSM due to the Aux injectors and problems that are know. I can verify the ASM kit will last and be very reliable.
Using a T trim Vortech you know you will not have any issues. And room to grow is there.

My issues were related to my Heads, Cam and headers. THe flow is just too high for the original UniChip to compensate for, Now with the boost a pump and new tune it is spot on. The story will be different when we get custom tunes.

P.S. YOU WILL JUST HAVE TO DRIVE DOWN AND GET A RIDE TO BELIEVE IT!!!:D :D

navyavi469
08-05-2007, 10:51 AM
I know the ASM kit is quality. But I'm not interested in the S/C until I can build a bottom-end for it... pretty far down the road.

I'm also somewhat of a brand-whore... i just like ATI.

BuilderBill
08-05-2007, 11:39 AM
I just installed my intake spacers from ASM and my Kenne Bell Boost a pump so temps should be down and fuel is good.

Hey FAST,
Which Boost-a-pump did use use and where did you buy it?
Bill

FastSRT8GC
08-05-2007, 01:53 PM
Hey FAST,
Which Boost-a-pump did use use and where did you buy it?
Bill


Bill,

I used a Kenne Bell Boost-a-Pump. I believe you can get it from ASM. I got it here at a local shop. Simple install. It goes inline with the positive wire on the fuel pump. It adjusts the voltage during boost. I tested it before I installed it. It adjusts from 0-50% and increases the voltage from 13-20v.

Blown-WK
08-06-2007, 07:46 AM
Bill,

I used a Kenne Bell Boost-a-Pump. I believe you can get it from ASM. I got it here at a local shop. Simple install. It goes inline with the positive wire on the fuel pump. It adjusts the voltage during boost. I tested it before I installed it. It adjusts from 0-50% and increases the voltage from 13-20v.
Glad to see the KB boost a pump worked out for you. It sounded like exactly what you needed after seeing the slightly lean condition on the dyno. Just out of curiosity how much +% increase are you running to maintain a healthy AF?

FastSRT8GC
08-06-2007, 10:15 AM
Right now I have it at 20%. I can not trust the autometer A/F gauge, so until we get it on a dyno and tune it exactly then I will leave it alone for the most part.

BTW Torrie never returned my call.

medihummer
08-06-2007, 10:42 AM
guys

adding power with superchargers is easy but what about the transmission. how many hp an torque can the OEM transmission take?

BuilderBill
08-06-2007, 11:55 AM
guys

adding power with superchargers is easy but what about the transmission. how many hp an torque can the OEM transmission take? Who knows, but, I am not about to take a chance.
http://www.cherokeesrt8.com/forums/showthread.php?t=5467&highlight=transmission
Bill

cmn1
08-06-2007, 05:31 PM
BTW Torrie never returned my call.[/QUOTE]
Hey Fast, email him. He usually responds relatively quickly. Never tried to call him though.