Great testing Good luck to you as well!

 

No offense, but how the heck is that an accurate test? You didn't do any dyno testing or track testing? How do you know that the difference wasn't just from one guy shifting faster than the other guy?! I prefer actually "data".

 

The power difference was more than obvious. No short delay in gear shift would make up this kind of ground.

It is the middle of winter here and there are no tracks open, or else I would be there instead of posting on the interweb. Specially considering that I live up the road from Atco Raceway. RevIt Up is getting their dyno 2 week from now, and trust me there will be a HUGE influx of dyno graphs for you all to jugle your nuts over

 

I don't "juggle my nuts" over dyno graphs. Dyno's are only good for helping get your car dialed in and to help with the A/F ratio. In other word's, dyno's are good for tuning only. The only thing I'm worried about, are track times and trap speeds. That's what all of this comes down to for me. Being fast, and getting there as cheap as possible, while still being as reliable as possible.

 

Hahaha, I just noticed that you and the other guy both have retired Impala's. Now I see the patern.

I would also like to make an observation to tie you in with a lot of the people that are making this sport so crappy "...getting there as cheap as possible...". That is a bold statement coming from someone who shares the same view of dyno's as the entire Revitup staff. I would have expected a little more from someone who knows cars, because cheap = get what you paid for.

Since everyone else is putting thier retired cars in thier Sig I guess I should update mine as well?

 

I Think you took my response out of context. Meaning, for example, your fuel rails idea. Yes, i'm sure it works good, and is probably more accurate than putting bigger injectors in and tuning them in. But the cost of your "secondary" injector kit is going to be much greater than tuning in bigger fuel injectors. Let's say I put my goal as 12's. Let's say I want mid to high 12's, safely, but not spending money on stuff that I don't "need". If I can get there by tuning in bigger injectors instead of your fuel rails idea, and save $1,000, then I went fast for as cheap as possible. You don't have to preach to the choir about the rule that you've to to pay to play. I would also never make "shortcuts" to save some money. Oh, and as far as the signature idea, I haven't seen anything else impressive in your signature, so why don't you enlighten me?

 

Oh, and somthing else that came to my mind. Let all of your customers know that they can rest assured that all of the parts they buy have been thoroughly "track tested" on the highway. You can talk crap about me wanting to save some money on modding a car, but atleast I don't own a company that uses unreliable highway racing as data for the products I'm making. lol


Also, I would never tell someone that it's safe to run a 2.8" pulley on a stock fuel system!That's what bothers me the most! Even one of the moderator's realizes now that his IDC is 98% with a 3.0" pulley! Why do you think GM gives bigger fuel injectors before they even give a 3.1" pulley!? Take a hint! When hotter temps come around, there's going to be alot of chipped pistons following your advice!

 

I could put ALL the cars i've owned and raced and ALL the cars i've tuned that hold records but then you would bitch my sig was to big!


Lighten up man! I thought the wbody world was full of sensitive people

 

I have to agree, I don't know how the revitup kit is running a 2.8 pulley with stock injectors and getting more fuel out of them. Mine a pegged wide open from about 4000 rpm's up.

I think I have a good understanding of how the revitup kit works and I don't see the more fuel.

JMC007 also agrees that you can run a 2.8 on a stock 2005 Cobalt SS, however.

I will also admit that I know several people running the revitup/psi-fi kit and they have been running it in warmer climates and they haven't reported any problems yet.

But the reminds me of a brianmp5t comment about how in the beginning everyone was running 9 psi on there stock (mp5) engine no problems and then they started failling prematurely.

 

Well, I think I need to clarify my point a little. I'm not trying to vendor bash in any way. I saw A LOT of piston chipping when I was in the w-body world. Now I realize that they weren't intercooled from the factory, but every car is different! Revitup may have 5 cars that they've seen in person, and 50 cars that they've heard of not having a problem. But it only takes one person to say that their kit chipped a piston, for there to be a problem. Just for safe measure, and to be on the safe side, I'd recommend new fuel injectors for anyone who's Injector Duty Cycle is 85% or more. I just don't think it's good business practice to tell everyone that it's ok to run a 2.8" pulley on a stock fuel system. There might be one guy out in Florida who puts this kit on and blows his motor from being too lean, you never know. I encourage every vendor to do what they can to give the Cobalt SS/ION Redline a great aftermarket, but I also think that they need to research as best as possible the limitations of the factory parts, and try to make each upgrade as safe as possible. Just my opinion, who knows what it's worth.

 

This debate has been going on since the Intense Kit came out...

Personally, I agree with the Intense guys, I cannot see how the fuel system left stock can run a 2.8" pulley...

Rev It Up, you say the best way to add more fuel is to add more injectors, instead of throwing bigger ones on the car because that is the wrong way to do it... As the Intense guys stated, GM is going to do it with their kits as well...

Both Rev It Up and INTENSE seem like great companies and i'm happy that companies are producing products for our cars which is great, but I do feel Rev It Up and Intense have different ideas and projections for the future and thus this will always cause these arguements..

 

Have you actually tuned in larger injector PROPERLY on any LSJ? If not then how can you speculate the cost involved? What is your angle on posting here? What is your goal?

 

Umm Mr. Tuner when hotter temps come around then the air density is going to go down and so is fuel consumption requirments, but I am sure you knew that.

Also I ALWAY run my car at the track, but once again it is the dead of winter so you have to take a seat and wait like us.

 

75% of the tuning and testing of this kit was DURING the summer months. Also between RevIt UP myself and my tuning partner we have 3 LSJs and 1 2.4 Ecotec. Right there with our own cars we met what you speculated as our experience locally. That is not including customer's cars.

As for records Between all of us, worlds fastest and quickest street driven : Audi S4 and stock turbo S4, SRT4 (at the time and soon to be again) 1st gen neon, probably street driven LSJ (I will be sure to hit the track ASAP), PT cruiser 12.8 @ 115mph, TurboKompressor Mini cooper S , and the list goes on. SO stop that Jibber Jabber


If you can do it better then make a faster car and beat us our our game, I suggest you do it quick because we are almost done the final tune. (JUst waiting for the track to open )

 

twincharged....


i'm sure there are plans to run the revitup kits on cars with the gm stage kits already on. since these cars are going to have larger injectors, and a different flash, is it going to require a different revitup kit to make it work properly?, or is this something that you have to wait and get your hands on a car with a stage kit installed to test/verify everything?

 

Whats the cost of your kits!! Sure hope it is plug and play! (side joke)


Just for the record to all who are to lazy to read the previous post, my intent was not to discredit ANY vendor or question thier products or abilities. My only question was HOW they could they recommend a 2.8" pulley is safe on a STOCK fuel system! Thats it.
To bad they got thier panties all rolled up the crack and couldn't answer my question, YET!




As for track time, which one do you want us to bring? The 9sec GN, 11sec cam only 04 GTO, 11sec Impala, 11sec 04 MCSS Turbo, my Cobalt, the 10sec Cobra, ????????

 

I can easily make a map for it but I would have to get my hands on a car with this kit. What would be the benefit of having the GM kit?

Also as far as the way RevIt Up is tuning the car vs Intense, I could very easily config the SMT6 to runjust like the intense and pull back on MAF frequency to run larger injectors. In fact I did this over a year ago, but decided that reducing load reference resulted in too high of an ignition timing. How did I do this? I data logged both the OBDII, my wideband, as well as the SMT6 on the street as well as the dyno. The big problem was pulling back on load in the lower portion of the map (3k range) at wot. It would ramp the timing in excess of 28 degrees when stock is 15. This resulted in knock of over 4volts on the sensor. Ah what the hell do I know?

 

It was datalogged multible times with a 2.8 pulley and us manipulating the map sensor as well as a few others we can and did retain an air fuel of 12.0:1 up to 6k where it leaned to 12.6:1 for the remaining 300 rpms. I am not going to tell you how we did it or how to tune the car for that matter. The point is we run a safe ignition timing curve where the highest I seen was 22 degrees on the top end. I have done a TON of data logging on this car, mostly street driving not just on the dyno, seeing how it is the street that the car is driven.

There is your answer plain and simple.

 

Bring any one of them and I will run it with my personal "Sport Compact Car" SRT4 seeing how it is a sport compact car that we are discussing here and not another V8 running 11s like every other one.

 

my thinking is that with the extra hp/tq, it will be a little easier to make a claim on a drivetrain warranty issue.

 

To be honest it is hard to see the rail on the car due to the way it is positioned. The piggy back is the size of a cassette tape and can be hidden as well. If you take off the pulley, chances are the dealer won't know the difference, unless he is tearing the motor down. At that point he would notice bigger injectors and jumper wiring harness that come with other tuner kits.

 

Let me re-cap here,

You guys fooling sensors is ok but another vendor it isn't, Check!

Adding a fuel rail, 4 more injectors, all the wiring and modiles and making it works better and more simple than just adding 4 bigger injectors and a properly tuned pcm, CHECK!


You admit the car is leaning out at higher rpm's but thats ok, check!

You know what you are doing because you have made totally unrelated 4 cyl cars fast but i don't know what i'm doing because i've worked only on v6 and v8 cars, Check!


Good luck! We all need it!

 

i just wish you guys would get us some more info on these upcoming kits...this money is burning a hole in my pocket...

 

I'm wondering about the fastest 1st gen neon...do you have len ayala working with you guys? Cause he was running 9's while still driving it to the track then bolting the slicks on there...9.6 I believe. Either way keep up the good work. His car was the hahnracecraft development car/drag car

Dan

edit: Fastss06 They are fooling a sensor that when fooled will not cause massive ignition advance under conditions that are harmful to the motor. 12.6:1 isnt that lean at all. No one has officially cracked the pcm...it is vaporware until then.

 

Where is this tunable factory ECU you speak of? Hey look there is a rainbow. Perhaps it's at the end with a pot of gold and luckycharms. Here is some milk so you can eat your check.



FYI I speak for myself and not any vendor on this forum IE RevIt Up.