| From | Message |
RyanH
Dodge Dakota
JOIN HERE
2/10/2006
11:35:14
|
 Subject: What next?
IP: Logged
Message:
Okay, I have a 99 rc r/t with a K&N FIPK, Flowmaster exhuast, and a superchips programmer. What should I do next? I was thinking of getting headers or upgrade the exhaust. When I bought the truck it already had a flowmaster on it but it is too quiet for a flowmaster and it has some small tailpipes. So either headers, exhaust, throttle body, M1 intake, or camshaft? Which one would be best to do next? I would like to do something that would increase gas mileage. I don't know how bad the superchips hurt gas mileage because when I bought the truck it already had the superchips on it.
|
Mopar318
GenII
2/10/2006
15:46:57
| RE: What next?
IP: Logged
Message:
Headers will have some nice gaines by them selves.
Throttle body, M1, and a mild cam would all compliment each other, But if you just did one you wouldnt notice much.
My rice eater
|
DAKDOG
Dodge Dakota
JOIN HERE
2/11/2006
09:59:24
| RE: What next?
IP: Logged
Message:
Heads. I have all the intake and exhaust mods on my truck. Until you change the heads it won't breath much better.
|
truck guy
Dodge Dakota
JOIN HERE
2/11/2006
11:00:06
| RE: What next?
IP: Logged
Message:
DakDog is right. Make the motor breath better and you'll make HORSEPOWER. Headers are a good idea along with the other mods you talked about. But dollar to dollar the heads are the way to go. How do you think the big car companies are doin it these days. You don't see anymore big blocks rolling off the plant lines. There are making more power per CID. then ever before. You won't see anymore high compression big cam monsters. they do it by making the motor a better air pump. Look into porting and polishing of your stock parts, it may be cheaper. Unless you have money to burn, then go for the newer better heads.
|
Cane
Dodge Dakota
JOIN HERE
2/11/2006
19:24:15
| RE: What next?
IP: Logged
Message:
What about porting your own stock intake manifold and heads. Wouldnt ya get some gains from that?
|
RyanH
Dodge Dakota
JOIN HERE
2/11/2006
21:06:30
| RE: What next?
IP: Logged
Message:
My whole goal is to get close to 300 hp at the wheels. Does anyone know a place where you can calculate horsepower? Would these parts get me to 300hp: headers, exhuast, air intake, M1 intake, 52mm throttle body, camshaft. I would like to get a pretty aggressive cam but on KRC there are so many cams that I don't know which one I want. Also, do I need to get some better roller rockers or the mopar pcm when I get a camshaft or will those just help make more gains? I think I heard someone say when you get a cam you needed something else I just don't remember what it was or what you would need.
|
.boB
Dodge Dakota
JOIN HERE
2/12/2006
01:32:39
| RE: What next?
IP: Logged
Message:
What are your goals? Street fun, drag strip, road course? What else does your truck need to do - pull a trailer, haul fire wood? These are important considerations. If you add long tube headers, M1, big TB, etc, you truck will be a screamin machine. But it won't pull a trailer worth a darn.
OTOH, if you add a GearVendors underdrive unit, you can have a very quick street machine that will also tow a trailer and get decent fuel mileage on the highway. Same money, less work.
You could also make the truck 500# lighter. Which would be the rough equivelant of making 35 more HP.
The fastest car at the track is not always the one with the most horsepower.
|
truck guy
Dodge Dakota
JOIN HERE
2/12/2006
09:21:07
| RE: What next?
IP: Logged
Message:
RaynH. About what to use for parts and how to make the power you want. You can get yourself a CD for your computor that lets you build a motor on your computor. It's works like this, you put in either how much power you want to make and it tells you how to put the motor together(what parts to use) or you put in what parts you want to install and it tells you what gains you'll endup with. Check online at sites using the header of CAR MATH that should put you on a site with links to get one of these CD's. Some sites offer a download of the same thing for a price. look into it I'm sure you'll get the info your looking for to make the motor of your dreams.
|
RyanH
Dodge Dakota
JOIN HERE
2/12/2006
17:09:11
| RE: What next?
IP: Logged
Message:
I'm really just going for some street fun. I would like to have some power to fool with camaros and mustangs but still be able to make some presence down at the track. Where I'm from there isn't too much of a market for this kinda stuff so I know I wouldn't need much. I don't plan on towing anything. This truck is mainly for fun, yet it is still my daily driver. And what truck guy said about the CD's, I've seen some of those but they are way too expensive, I think the cheapest I saw was $70.
|
.boB
Dodge Dakota
JOIN HERE
2/12/2006
23:57:56
| RE: What next?
IP: Logged
Message:
For street fun you really don't need much. The engine/trans is already pretty solid, and that's a good foundation.
Don't touch much in the engine compartment. Cold air, good exhaust, and reprogram the computer. That will get a bit more power, but better throttle response. It can also be done over the week end.
Put a shift kit in the trans so you don't lose so much time on the shift, and it will upshift later in the rpm range for better torque application. Use the stock converter. Put in a bigger or second cooler.
If you have 2WD, add a Gear Vendors underdrive. You'll be amazed at what this can do.
Work on the suspension. Big sway bars. Wider tires. Better brakes. Shelby style under rider traction bars.
Make some body changes. Front air splitter, tannou cover. No wings.
If you do those few things you'll spend probably less than $5k'ish. None of the work is highly technical or complicated. None of it will adversly affect it's daily duties, long term survivability, or resale value. Your commuting fuel mileage may even improve.
|
Ummmm
Dodge Dakota
JOIN HERE
2/13/2006
00:29:39
| RE: What next?
IP: Logged
Message:
for 5k, just slap a turbo or a blower on there and BAM! and extra 100+ HP at the wheels.
|
RyanH
Dodge Dakota
JOIN HERE
2/15/2006
15:35:50
| RE: What next?
IP: Logged
Message:
What do you mean by the Gear Vendors underdrive? Do you mean the underdrive pulley set, cause I've heard they aren't worth it. They can cause a drop in voltage and you have to change to a 7 rib belt. Just curious.
|
.boB
Dodge Dakota
JOIN HERE
2/16/2006
10:33:11
| RE: What next?
IP: Logged
Message:
Not even close. The Gear Venders unit bolts in behind the trans like a transfer case. You can get underdrive or overdrive, depending on what you're after. It's like having a two speed differential without all the weight.
They were originally designed for the RV crowd. But imagine being able to change your rear differential from a 3.55 to a 4.11 with the push of a button. Like having a 2Hi and a 2Low.
|
RyanH
Dodge Dakota
JOIN HERE
2/16/2006
18:06:52
| RE: What next?
IP: Logged
Message:
I'm not sure exactly what that means. What is the difference between underdrive and overdrive? Would this be useful for racing and then capable to do my daily driving? If so, where can I find this at to learn more?
|
.boB
Dodge Dakota
JOIN HERE
2/16/2006
22:49:25
| RE: What next?
IP: Logged
Message:
OD and UD refer to the input and output shaft. For example, the transmission. The input shaft connects to the engine. The output shaft connects to the driveshaft in the back.
In the average 5 speed manual (like a T-5 or Tremec), the first 3 gears are underdrive. The input shaft turns 2-3 times for every one turn of the output shaft. First gear would 2.37, which means the input shaft turns 2.37 times every time the driveshaft turns once. That's underdrive. Underdrive gears multiply torque. The greater the gear, the more torque multiplication you get.
4th gear is a 1:1 drive. For every one turn of the input shaft the driveshaft turns once.
5th gear is Overdrive. Most are around .68. That means for every one turn of the input shaft, the drive shaft turns .68 times.
The differential also has an underdrive gear in it. Most common is 3.55. For every one turn of the wheel/axle, the driveshaft turn 3.55 times. If you change the gear ratio to 4.11, it will multiply torque even more. But the engine has to turn more times to go the same distance. Not good for fuel economy.
That's the basic concept of gear boxes. Multiplying and dividing torque.
Gear Venders is a brand name. They sell a gear box that bolts to the back of the transmission. It's operated by an electrical switch these days. Used to be a lever. Anyway, the gear box has two gears. One gear is kind of like a straight through 1:1, and doesn't change the gear ratio at all. If you're looking for better economy, you buy the unit with an OD like 0.7. When you press the button, your rpm's drop about 30%. Great for fuel mileage on the freeway.
If you're looking for more pulling or launch power, you the the underdrive unit with a 1.3 gear. With the push of a button you can effectivly change your economy rear differential gear from 3.55 to a neck snapping 4.56.
|
.boB
Dodge Dakota
JOIN HERE
2/18/2006
22:59:49
| RE: What next?
IP: Logged
Message:
The April 2006 issue oif Hot Rod Magazine has an excellent article on the Gear Vender unit. If you're interested, pick up a copy.
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
