IPSCO Underdrive pulley install

[Boosted Motorsports]

Pretty straightforward but made a video anyway! Finding the correct belt was a bit of a fiasco as there wasn't much info on this so took some back and forth to the parts store but got it figured out!

If you're thinking about installing an underdrive pulley check out the video!

[Camfab]

Always wondered if underdrive pulleys are a good idea in a street application. Water flow rates are being changed substantially as well as charging rates. I guess you'll find out soon enough, although the real test will be cruising around in 110 degree LA summer traffic with the A/C on and the tunes cranking!

[Boosted Motorsports]

Always wondered if underdrive pulleys are a good idea in a street application. Water flow rates are being changed substantially as well as charging rates. I guess you'll find out soon enough, although the real test will be cruising around in 110 degree LA summer traffic with the A/C on and the tunes cranking!

I share the same thoughts and lots of controversy about this mod so time will tell! Not much tunes cranking with the stock crappy stereo though lol. I noticed at idle the voltage gauge does dip a bit but comes back as soon as you touch the throttle. We'll see!

[chicagopd50]

i have a ipsco underdrive pulley, and i do not notice anything different in charging and water flow difference.. its not that extreme of a difference where your using and all out track car pulley.. its still good for the street.. i dont mean to be bitchy but i always see people on forums giving there 2 cents when they have no such experience in that subject.. these forums have become mostly speculative more then facts... sorry about that rant.. but the under drive pulley will not do any harm to charging or a/c or water flow.. the stock pulley is much bigger because dodge takes in consideration about the most extreme conditions possible for the vehicle to be in, thus why they compensate bigger pulley.

[Camfab]

i have a ipsco underdrive pulley, and i do not notice anything different in charging and water flow difference.. its not that extreme of a difference where your using and all out track car pulley.. its still good for the street.. i dont mean to be bitchy but i always see people on forums giving there 2 cents when they have no such experience in that subject.. these forums have become mostly speculative more then facts... sorry about that rant.. but the under drive pulley will not do any harm to charging or a/c or water flow.. the stock pulley is much bigger because dodge takes in consideration about the most extreme conditions possible for the vehicle to be in, thus why they compensate bigger pulley.

I love how you're calling my questioning of factual changes (slowing down H20 flow rates as well as charging rates), speculation. Can you explain scientifically how you haven't noticed a change in your water flow rates, LOL. I'm not criticizing what Boosted has done, I'm actually curious as to the real world consequences of the install. Yes, we live in an area that experiences extremes in temp and no your comments are not valid to me, as you've already stated a biased reactionary post. Have a great day!

[chicagopd50]

i drive my car daily to work and back, i also have a cammed viper.. i have noticed zero heating issues nor charging issues.. until you try it then you can tell us how it has changed your car.. i do feel lil faster reaction or faster revs... but nothing in hindering the car...i live in chicago so we have extreme weather of cold and heat... so go try it and if you dont like it then leave a comment, stop reading the other guys speculations and making it facts. just cuz its on the internet does not mean its true..and u have a great day your self too !

[Camfab]

WOW, you have serious reading comprehension issues.

[chicagopd50]

actually you do.. i said it makes no difference in daily driving issues. whats the question? scientifically yes there are some changes.. changes that will not hurt you on daily driving.. why are you even asking about this mod if your already biased in not doing it.. your asking people how it works and im telling you how it works, but yet you dont want to accept what im saying.. i guess im stupid for even giving you some real life experience on this subject and even wasting my time ... your welcome for nothing ..

[Camfab]

Nice back pedaling, first you insult me by assuming my intelligence comes from the net. I've been building motors, two decades before the net existed my friend. Secondly you state there are no changes that occur in flow rates which automatically makes me think you use no actual intellect in your approach to anything. You make a statement that Dodge has oversized the crank pulley for extreme conditions, as if you know anything about the engineering of the GEN II.
The OP has already stated that he has noticed some fluctuation in charging, however I should take your statement, that there are no noticeable changes whatsoever as fact. Hmmm., let's see.........you drive a GEN III, not a GEN II.
As I stated, I've always wondered about the consequences of this mod, and my question was to Boosted. If he has zero issues with the mod over the course of the summer then maybe I might consider it. So to my point, I'm stir crazy happy that you're NON GEN II has no issues in CHICAGO where traffic and heat pale in comparison to where I live. You should keep your assumptions about my background to yourself, as you're baking up the wrong tree.

[luc]

I have to side with Camfab on that one. whoever has driven a Gen2 Viper up the Grapevine when is 110* outside know that the cooling system need all the help it can
you statement that there is no impact on daily driving is way too broad and based on a way too small sample to really be of any meaningful value.

[chicagopd50]

I have owned both gen2 and 3.. both had under drive pulley installed after I baught the cars.. I had no heat issues nor charging.. I am not back peddling.. u asked a question from experience and I am giving it to u... so just don't do the mod and stay slow so a Vette can beat you. Maybe I didn't have heat issues because I had cat deletes on both my cars so it was not hot in the cabin nor my motor ran hot.. Jesus how many times do I need to say it will not harm your car. That pulley is made for street applications.. trust me I see the real race application pulley it's even smaller.. heres a pic of my gen 2... just stop while your ahead..

[ViperTony]

Camfab FTW!

[Camfab]

I have owned both gen2 and 3.. both had underwrite pulley installed after I baught the cars.. I had no heat issues nor charging.. I am not back peddling.. u asked a question from experience and I am giving it to u... so just don't do the mod and stay slow so a Vette can beat you. Maybe I didn't have heat issues because I had cat deletes on both my cars so it was not hot in the cabin nor my motor ran hot.. Jesus how many times do I need to say it will not harm your car. That pulley is made for street applications.. trust me I see the real race application pulley it's even smaller.. heres a pic of my gen 2... just stop while your ahead..

I have to say, reading this put such a big smile on my face...........

[98RedGTS]

This is an interesting thread. Every other performance car I've been an owner of (Corvettes, Mustangs, Miata, Porshe 944) had a waterpump and alternator pulley that came with the kit. Thus basically just slowing down the AC and power steering pumps respectively. I'd like to see Stuntman take this mod on as well as he seems to have the resources to get before and after dyno sessions which would show the power gains.

I like the idea of the pulley but would be lying if I didn't say it would make me nervous in the Texas Summers.

chicagopd50 - not taking sides in this argument but does Chicago really get 100+ temps on a regular basis? I always figure their summers were mainly in the 80's with a heat wave or two where it may reach up 90's to 100 a couple days out of the year. Where I'm at 90+ is given from just about late June through Sept and it's not uncommon for us to go 3-4 weeks worth of days over 100. Have I said lately I really hate the Texas heat :-( I'd move up north but I think I'd hate shoveling snow even more though....

[98RedGTS]

Thanks Boosted for the vid. Looking forward to hearing more about this later. So what's next on your list?

For those that don't watch the video, it was stated a 2000mm or 78.8 inch belt is what was needed. Figured I'd post this in case something happened to the video.

[Boosted Motorsports]

Thanks Boosted for the vid. Looking forward to hearing more about this later. So what's next on your list?

For those that don't watch the video, it was stated a 2000mm or 78.8 inch belt is what was needed. Figured I'd post this in case something happened to the video.

Thanks!! Getting pretty close to where I want the car for a little while so I can start tracking, and enjoying it more so there will be more of those videos coming for sure. I also still have forgeline VR1 19" wheels that I haven't decided if I am keeping or selling. Some tow hooks should be next and keeping my eye out for some brakes. Trying to draw the line between making this car a beast and saving my car allowance for a gen V lol.

[dave6666]

Good god this thread is thick with stupid. Camfab is roasting you guys on another misguided upgrade. These endless mods to this car are like a freakin' ricer festival of pep boys paraphernalia. Just because they make it does not mean you should put it on your car lol.

i have a ipsco underdrive pulley, and i do not notice anything different in charging and water flow difference.

^^^ this has to be my favorite one so far in this thread. I'll pick up where Camfab has left off roasting you.

So tell me, mr. live in chicago where the climate isn't squat compared to the hot weather we drive these cars in, exactly how are you quantifying this "didn't notice anything different in the water flow?" Seat of the pants? You can't feel the water flow any different in the pedals seat and steering wheel so contrary to any and all physics and mechanical principles you make a statement that therefore there is no change? Or did you install some flow instrument and do a before and after flow test?

lmao you are getting called out and owned here. I laugh at these mods and the claims 5 minutes after they are installed about how much better the car is. Pep boys ricer talk.

[99RT10]

^^^^^^^You're a meanie^^^^^^^^

[chicagopd50]

Me saying not noticing any difference in charging or water flow means my battery didn't die nor my car ran hot.. damn u must be dumb as fuck not to recgnize what the meaning of that was...

[Hrysler]

Good god this thread is thick with stupid. Camfab is roasting you guys on another misguided upgrade. These endless mods to this car are like a freakin' ricer festival of pep boys paraphernalia. Just because they make it does not mean you should put it on your car lol.




^^^ this has to be my favorite one so far in this thread. I'll pick up where Camfab has left off roasting you.

So tell me, mr. live in chicago where the climate isn't squat compared to the hot weather we drive these cars in, exactly how are you quantifying this "didn't notice anything different in the water flow?" Seat of the pants? You can't feel the water flow any different in the pedals seat and steering wheel so contrary to any and all physics and mechanical principles you make a statement that therefore there is no change? Or did you install some flow instrument and do a before and after flow test?

lmao you are getting called out and owned here. I laugh at these mods and the claims 5 minutes after they are installed about how much better the car is. Pep boys ricer talk.

Smh..Flow rates? It doesn't have to be this complicated! You are still dealing with a thermostat. If it overheats put in a cooler thermostat. It's obvious if his car didn't overheat then "his flow rate" is fine. And if your not from the Chicago area how do you know about the weather? I assume you're not if your arguing this point..It gets really hot there. And humid. Maybe not every day but enough. "Pep boys"?? So any mod to a viper you consider pep boys ricer?? Ok. I'll make sure not to post pics of my tornado mod..:-). Dude relax!! And Camfab..

[chicagopd50]

Well said HRYSLER! It's my fault for even giving them first hand experience. Next time I'll just pass up a douche bag post..

[luc]

"If it overheats put in a cooler thermostat."
I will assume that by "cooler" you mean one with a lower opening temperature
Lot of misconception on the role of a Tsat in a cooling system
A Tstat only control the minimum coolant temperature and NOT the maximum. What control the maximum coolant temperature is the system capacity in BTU to shed heat
Such statement clearly show your lack of understanding of the operative principles of an automotive cooling system.

[Hrysler]

"If it overheats put in a cooler thermostat.
I will assume that by "cooler" you mean one with a lower opening temperature
Lot of misconception on the role of a Tsat in a cooling system
A Tstat only control the minimum coolant temperature and NOT the maximum. What control the maximum coolant temperature is the system capacity in BTU to shed heat
Such statement clearly show your lack of understanding of the principles of a automotive cooling system.

Thank you for your insightful comments. I'm seems everyone is a "expert" on the internet. But some know how to be a douchebag about it and some don't.. I'm sure you know about the cooling system from experience? Or Google? Ok that's fine. Funny all this because of a pulley! Lol. Let's make this easy as possible. Either run the pulley and post your experiences or don't. that's what Chicago did but he got "roasted" or "roasting" ok class over.

[chicagopd50]

Thank you! HRYSLER.... these are the same very people that get beat by ricers and give vipers a bad name! Its all good they can sit home and be the keyboard warriors they are and read all the google bullshit they need to fill their lil brains. I don't even know why these guys are talking about modding the car.. they probably never take it out or never have punched it ..

[luc]

Thank you! HRYSLER.... these are the same very people that get beat by ricers and give vipers a bad name! Its all good they can sit home and be the keyboard warriors they are and read all the google bullshit they need to fill their lil brains. I don't even know why these guys are talking about modding the car.. they probably never take it out or never have punched it ..

Why do you have to insult people?. Do that has to do with the size of your hands??
Facts are stubborn and you lack of civility is not going to change them
BTW, I have been racing and wrenching for many years, from Formula V to Big Bore Vintage to tube-frame Trans-Am cars so, to answer Hrysler, I'm talking from experience
For example, my Roush T/A did not have a T-stat or even a driller washer/restrictor ,flow rate was controlled by the diameter of the pipes coming from the WP
I will venture to say that some of us know more about cars in general and especially Viper ,that you will ever learn
Have a good day