We are not claiming horsepower gains at WOT as we have not found a dyno accurate/repeatable enough to measure the small percent we think it will add. However, there are a lot of tests out there with ported throttle bodies claiming 10-20 hp gains at WOT.

The one thing we can assure you is that the increase in flow area and surface finish required to do that are there, we even countersank the screw heads to minimize drag. None of these were the goals of the modification but we added them anyway, just b/c of the possibility of power gains at WOT.

 

I looked at your work and it looks top notch. There has to be a few HP there. I dont daily drive my car nor race it. I have had 4 Vettes through the years and stock response is a tad lacking but really its ok. I think when I find the right ported stock manifold I will order one of yours. For me it is about power gains, Just not going to spend money for a feeling.

 

A perfectly fine approach.

But I have always found fascinating how much subjective impressions matter.

Eco mode on my BMW feels sluggish even though the only difference is throttle tip-in and a slow throttle response; peak power is the same. But in sport mode the same amount of horsepower and torque feels as if the car has gained three times the power - merely because tip-in is aggressive and throttle response is quick.

I suspect these throttle bodies provide the same subjective improvement.

 

That seems kind of strange. I mean, if you are just looking at horsepower you could get a chipped diesel truck. More power right?

A more linear throttle response us absolutely massive in the performance world. The better throttle control, the smoother and faster you can be. Plus, it does feels good to have the vehicle respond when you tell it to, and not like it's a truck

 

This is where I think Mike really shorts himself in his product marketing and where he and I discussed this for a while before I really understood what his definitions were based on my previous experience.

While the product may make more horsepower up top and that number is unknown....that throttle tip in range...where when you are cruising on the interstate and need to add just a touch of throttle to keep a pass going and have a nearly closed throttle...there is a power gain there. It's not just a feeling and it's not just how fast the throttle blade is moving. The design changes how much air flows at those part throttle conditions, which adds power across that range of the "knee" in his diagrams. The difference in there based on looking at airflow charts I found could be as much as 40 hp based on the airflow moving through the unit. There are other variables and trying to "dyno" this change would be very difficult, but a simple airflow chart as he's shown translates into the engine seeing more air and matching that air with more fuel and more air and more fuel = more power at that point. Now, timing and other factors can affect the ultimate number, but there are charts showing where his greatest difference from stock could be as much as 30-40 horsepower with a small throttle input near idle. That's a great difference in how much response you get for a small near idle input on the throttle. That's what is different.

I don't have one yet, but if people are able to log that airflow number and it's showing more airflow at that point...there is more power. Significantly more power at that point based on the biggest difference from stock. Up top, yes it's likely you'll get a bit, but you'll almost certainly never feel it and it would take a few passes with similar conditions on a drag strip to see a tiny difference in times. But in town when you don't want to go full, but want a small bit of response to keep a pass going (without going WOT), this looks like it gives you a much greater flexibility in that range. MOST of the time driving my car it's not at WOT. WOT off the track is very limited. Small part throttle driving...is a huge amount of it from cruising on the interstate to light to light and neighborhood roads. If you added between 35 and 100% more power in those small throttle input areas (going from say 20 hp stock to 40 hp with this TB), you'd see a significant difference in the car's response. These numbers seem really small compared to the 650 hp my car makes, but at those small throttle openings and in most of your driving, you never make more than 100 hp if you do more than HPDE and 1/4 mile runs. Trips to town, out of town, cruising to Cars and Coffee...that's where this TB would make the difference and you would really feel it based on the responses so far. He offers money back if it doesn't work...so it's not like you're out of it you don't like it. So when the time comes...I'm going to try it out and see if I'm as blown away as every else who has. I researched around the numbers to see what it meant...because NO ONE really does much of anything in this area. No magazines measure it, nobody has really done anything with this particular issue like this I can find before.

I've got a few things to get done before I have more money to play with, but I'm definitely still interested in trying one out. It's a revolutionary idea in that area.

 

Nice Piece Mike

Regards
Chip

 

I just placed mine on order. This will be the first of probably many mods I do to my Z.

I can be a guinea pig for any performance gains. I've been meaning to do a stock dyno run just to see where i'm at in terms of power here in Denver. Once I install this and do the relearn process, I can take it back for another run. Not sure how long this would take though, i'm out of town quite often so it could be a month or more before i get numbers.

-Mike

 

I finally got to get out today and the car is definitely having to relearn what it's doing. I was happy about this because it means that the TB is actually changed and doing something with big enough changes made that are meaningful and can be felt. The first thing I felt was how much more responsive it was on tip in. I have a feeling that it's going to be a lot of fun once its done learning. Even in my short 20 min ride, you can feel the car smoothing out the "lumps". The lumps feel like you are smoothly accelerating and then it stops responding, like a stumble (but not a missfire) and then it picks back up and keeps accelerating. As time went on, these became less severe. I'll report back when I get to do more trips and hopefully, the computer learns completely and smooths it all out.

 

Did you do the re-learn process - Kill the power for 8hrs and then do the series of re-learn processes?
or
Just let it rip

Tks
Chip

 

Did the 8 hour relearn. No engine codes so I think it's well with its perameters

 

All I could say is WOW!!! I just had the dealer install Mike's SE8223-100 Modified Throttle Body and I'm having AWESOME results so far!!! My tech at the dealer did the OEM ECM Reset and it sure is learning awfully quick I also had him install the GM performance Air Box with the Weapon X Intake tube and couldn't' be happier[ so far ] The response seems like there no hesitation at all every time I accelerate whether from a dead stop or when driving. It seems to growl a little louder or maybe it's just in my head. But I know one thing for sure, in my instance my Z is definitely more responsive [ woke her up a little ] and quicker with no hesitation. I can't thank you again Mike for all your hard work!!! I didn't buy this expecting any initial HP just less hesitation and I couldn't be happier. Seems a little peppier [ maybe from the intake tube and air box ] Well worth the $$$ for me anyways one very happy camper

 

Nice

Mines going to sleep tonight

Regards
Chip

 

Glad you liked it! Thank you.

 

Slapped Mike's TB on this afternoon and woke Clifford up from his nap.

Did re-learn

Love the product Delivers 100% as promised

Nice work Mike

Regards
Chip

 

Unless I missed something, it looks like the link that shows how to install it, on the website, is broken. Is there a valid link or document with the instructions?

 

Well I put my TB on yesterday after the 12 nap and half way through my 100 mile relearn and it's getting better with every mile.
Another day or 2 and I should be able to do a WOT interstate entrance.

 

Merlin, thanks for letting us know. We'll fix that today. Please, find it attached in this post.

 

Thanks!

 

Ugh, I wanna install mine, but my job has me held up for another week before I can go home and work on it.

 

Just wanted to let everyone know that I got a check engine light on today. I think it's probably because I added the Weapon X intake tube, GM Performance Air Box and the Solar Energy throttle body all at the same time. Still LOVING it though except for the check engine light. I'm going to call my tech Monday and see what he suggests. I'm hoping the light just goes off after awhile. I drove it today about 270 miles and it's still on. The light was off for the first 15 minutes of the ride , then I stabbed the gas pretty good and I think that's what triggered the light. Just a blast to drive I couldn't help myself Any suggestions. Also I don't even have on star and I already got an email from them stating there's a problem with the engine or tranny and bring it into service within the next 7 days Great.