JDECON

No problem innacurate. Im actually glad that i went out today and saw the different setups he had going on. Marcus has def invested time, money and effort into finding out the best product for us consumers. We have to appreciate how hard these small american companies work hard in making a good product.

Gtmaxx im not selling the atlp base exhaust anymore.Was gonna trade but deal didnt fall through. I know exactly what your jpipe and my exhaust sound like. hint hint from todays dyno

GtMaxx

how wuld it sound how wuld it sound (llittle 5 yr old boys voice anxious) lol any hints welcome or comparison. I hope it sounds close to exotic on the german note in a way lol since thats how the full atlp sounds like. ARghh oh know no more base exhaust for sale but ill still order one soon but I cant wait for the vids mayb my j pipe might be for sale lol

JDECON

It sounded good def alot better than the turbocharged scion tc that was in the bay next to us. The bids and dynos will do justice to exactly what your looking for. Now you guys can start messing with Marcus again and ask him for the intel. I told you guys 10 pages.

swoosh

iTrader: (5)

Marcussssss post some shit up !!!

PS: Thanks JD for hiking up the anticipation LOL

JDECON

Swoosh you are so wrong bro.

HEY MARCUS POST SOME PICS AND DYNOS UP BEFORE THESE GUYS USE MY CAR AS A PORT A JOHN!!

TLOHTL

Well why isn't Marcus posting the results up?
Why is everything so top secret ?
Either he's just trying to buy some time ?
Or is he contacting the other companies that he deals with and sells products of like xlr8 and rv6 ?
The way I see it , it's simple ... You guys put the different setups on dyno and got the numbers. Tell us the results and you can post : pics , dyno graphs and your b.s reasons later when you have " time "

Andy270211

Hold your horses, mate.

Patience.

callahan

Sounds good I'm in for updates!

MrHeeltoe

iTrader: (1)

I have a lot to write up and I want to do it all at once so I need some time to get some stuff organized. I have a life, too. And this was only stage one of some intensive testing we are doing. Already a second prototype is in the works that will require more testing to be done. We are trying to make the mother of all j-pipes here, and it is definitely a challenge because the competition (and our own ATLP V2 pipe we already make, ironically enough) are very good performers). I am teasing because I am not going to release anything until I know for sure we are the king of the hill. But the publicity is fun.

Your rampant speculation is amusing but dangerous. Don't start unsubstantiated rumors.

We do have some info and a nice little video we are going to release as soon as editing is done which will have something to chew on. But the new part we are making will be ready when it is ready.

dragonsking91

This cant come out fast enough but i'll wait!

GtMaxx

YEs marcus put up some videos lol its like I have antz in my pants since I want the ATLp base exhaust mayb i might make it a combo with the new j pipe but so hard to part with my v3 j pipe lol

Texas Turbo

Its seems there are a number of anxious folks waiting for the hard numbers including myself, guess it also means we all have some money to spend

DC2many

if the prototype has the most gains out of all current available j-pipes right now, i want to buy a proto now =p can't wait

swoosh

iTrader: (5)

DC2many

TL Seth

i jizzed my pants when i saw this...ill be doing the race pipe j pipe combo by summer

how come heeltoe does not sell mufflers? They should!

alexSU

iTrader: (3)

cute smiley

swoosh

iTrader: (5)

^^^ hahaha i thought so too...maybe that will push Marcus to post something LOL

Sonnick

If anything, Alex's avy will do that. It has me following his every post

MrHeeltoe

iTrader: (1)

Second prototype is supposed to be done end of next week, then it is back to the dyno!

Hytech sometimes puts things off though, so no hard and fast dates here.

swoosh

iTrader: (5)

^^^ more wait

@Sonnick: toldja bro...see he posted LOL....PS: Alex and Civicdvr have the best avy's....couple folks on the TSX side as well

alexSU

iTrader: (3)

hey it worked!!

Thanks swoosh!

Sonnick

Can we get pics of the 1st prototype? It would be interesting to see what's going on here...

GtMaxx

were supposed to get dyno videos as well but still nothing after the few days of waiting

MrHeeltoe

iTrader: (1)

The first video will not feature the V2R prototype. It will feature the ATLP V2 and the RV6 V3. We needed to set a baseline. We were surprised at what we saw.

The first test piece is a development part and will not be made public until we get to a point where we are marketing the V2R for sale.

Sonnick

Fair enough. I hope we will get pics when the 2nd prototype is complete. I would love to see what Hytech is thinking.

MrHeeltoe

iTrader: (1)

I tell you, just looking at it things won't seem excessively impressive. It is where the numbers fall that we are hoping to score.

For now, a little fun. Here is a dyno of a ATLP V2 J-pipe with ATLP Race pipe versus RV6 V3 J-pipe.

Which is which?



Note: the RV6 pipe was tested first and the ATLP was second. Engine temp was kept at 197 degrees, back to back, and 6 runs were done for each. The best run was taken from the 6, and in neither case was the first run the best.

gwiffer

iTrader: (7)

^What was the average of the 6 runs for each?

Stock precats or PCDs?

Did you get AFR data for the runs?

It looks like the shorter primaries of the ATLP setup are making a little more power in the upper RPMs, compared to the RV6 V3.

ProbyOne

Very nice.

I wonder how your final version of the new jpipe will compare to the XLR8 V2 jpipe.

Sonnick

Thanks Marcus. And yes, I agree. The RV6 picked up a bit more low end while the ATLP shined up top. As far as the 1/4 mile is concerned, I think the ATLP V2 would outperform the RV6 V3 since you are at 5000+ for most of the track. Very interesting.

I am very curious how unequal length primaries would perform...I'm thinking the low end would be similar to the RV6 and the high end similar to the ATLP.

I'm a little curious as to what mods this TL has being that it's making 274whp? Also, the power curve seems to climb until 6750, something that most J series dynos don't. I'm trying to figure out why....I'd love to see a back to back comparison of them tuned as well. Maybe Rodney could lend you an ECU

Inaccurate

This is the general principal with increasing runner lengths. If the intake runners or exhaust primary pipes (before collector) are made longer, the powerband tends to gain in the lower rpm range while losing in the upper rpm range. This explains why I have never done the longer jpipe nor the "Factory IM Spacer" mod. I know from my earlier years with modding small blocks chevy motors of this tendency.

MrHeeltoe

iTrader: (1)

Bone stock car besides the cat-back.
Did not get AFR data this time but will next time.


Actually the ATLP is pretty unequal, and our test pipe is a little off as well, by about 1". We noticed that the RV6, which achieving more equal lengths, is exhibiting some restriction, especially in the rear bank.

Keep in mind people, this car was on a Dynapack in 3rd grear so it is almost able to be considered crank hp.



So, here is a bit more info on the new part...we were moving the merge around to try and get an idea where and how power is effected. Now we are playing with diameters in order to get maximum efficiency.

DaWei

wish there was a picture?
guess i gotta wait abit before getting a jpipe

swoosh

iTrader: (5)

Sonnick am guessing its a fully bolted on 6MT or a Type S 6MT with 1 or 2 mods....and 3rd gear run and hence the power doesnt drop, keeps going....4th gear will be 2-4hp less

I am running inequal length primaries and the only problem is tuning the sound as the pulses arrive at different time at the merge....

the runs were very impressive....honestly i dont really care how much power it makes over the Rv6....am more interested is how much more power it makes over STOCK !!!....

EDIT: I posted after an hour of Sonnick posting and without refreshing the page....hence my post is just echoing Marcus's post....

Sonnick

Oh, I thought the ATLP was equal length as well.

In order to get maximum efficiency in terms of diameter, wouldn't you have to run it on the dyno 'open Jpipe?' By this I mean that everything after the Jpipe collector should be disconnected, right?

MrHeeltoe

iTrader: (1)

The main thing that impressed me was the sense that people who were assuming the RV6 was a better design for power was off. I expected the RV6 to make more power than the ATLP in general, but as it turns out there is a give and take with each. We'd like to claim that more HP mods will make the difference greater, but cannot at this time.


Once again, it was a 2005 6MT, bone stock except for the exhaust. I am interested in seeing if the differences are greater on a TL-S w PCDs though...might be doing that test later actually.

We do have a comparison to stock as well, we will post that up later tho. It was pretty significant; inline with what we have been claiming this whole time.

ATLP V1 was, but that was ditched in favor of better ground clearance.

If we ran straight out the j-pipe we would not be getting a realistic sense of what made power on an actual car though...just the same, we will be looking at opening up sections of the ATLP exhaust alter and offering a full race type system.



Isn't anyone going to ask about the sound difference? We have a video being processed right now that should give a really clear sense of the test between the two.

swoosh

iTrader: (5)

^^^ Holy shit a base 6MT STOCK with Jpipe and Catback was 274hp ????

I now justnspace did a dyno with Base 6MT STOCK with PCD's and Jpipe for 241hp....

am i missing something here ? was the car on steroids

alexSU

iTrader: (3)

274??? holy shit

egprelude

iTrader: (1)

I believe there is a consensus, at least among the s2k crowd, that Church's dyno reads relatively higher, especially this particular dyno.

ProbyOne

The "Ratio" value of 4.12 is indicating what exactly?

I assumed that it was the overall gear ratio input, which would be ~4.10 for 6mt 4th gear and 5.57 for 3rd gear overall ratio.

ETA: Assuming my assumption is correct (you know what they say about assumptions)... why not put in the correct gear ratio for the pull?