speed density vs. blowthru.

[bomjoon]

which setup will more benefit me?

and which is cheaper to get set up?

Ryon can chime in on the pricing for both set up and ...

touringblob can prolly answer the question on which would be better for me and him to tune since you 'll be tuning it :P

what i'll prolly have to do is drive to your place matt and get it installed there. and get it tuned once we get it installed.

will i run into any problems later with these set ups?

pros and cons for both set up?

or is it better to just go with new EMS instead of messin with all this...

i know my car wont see higher hp than 400whp.

[BlewByYouEvoVIII]

Matt probably can correct me if I am wrong about this, but I believe speed density is more expensive but is also a more accurate reading.

We traditionally use speed density, but most of the cars we do are running Fcon which uses SD.

Since you dont have emissions I would recommend a standalone.

[TouringBubble]

I actually prefer tuning with a MAF, so blow-through would be better for me. It's also possible on the stock ECU with the MAF-T along side.

Speed density is more expensive in most cases and also more reliable and consistent, but I don't think it's really as accurate as MAF tuning.

Both are stable setups if tuned correctly.

[bomjoon]

so how much is it to go blowthru on just parts Ryon?

i guess i'll need...

2.5" to 3" couplers 2x
3" gm maf sensor
wires?
maf translator.
and ... what else...

[bomjoon]

ok then blow thru it is...

is it possible for you to get all the parts ordered for me and i can just pay you for everything later? tuning included.

i hate ordering and dont wanna get wrong parts.
and rather you have everything at yo place for us to install and get tuned right away.

if you can or wanna do this lemme know and i'll get ready to set that up.

[TripperFx3]

Keep this thread posted if you don't mind. The 240s guys used to run blow thru a lot, but haven't heard it used with the Evos.

[shunderwunder]

so how much is it to go blowthru on just parts Ryon?

i guess i'll need...

2.5" to 3" couplers 2x
3" gm maf sensor
wires?
maf translator.
and ... what else...

You will need to have the UICP cut between the BOV & TB. I would also recomend having beads rolled into the cut ends of the pipe so that the couplers dont slip off. I just recently went through this debate with myself & in the end I decided to go with speed density. The 2 main factors for me were that I didn't want to cut my UICP (it just looks too good as is) & I liked the idea of being able to drive the car if an intercooler pipe comes off. The down side is that there aren't a lot of people that are very familliar with tuning the speed density setup unless it's a standalone setup & the speed density setups are more expensive. I was going to go with the AEM EMS setup but decided I didn't want to deal with swapping crap to pass emissions.

[bomjoon]

is it possible for you to give me some more info on your set up?

if possible id like to meet up wit you and have a look at it.

only deal i dont like the AEM is the cold start and the $$ part. lol

[shunderwunder]

I'm running a MAF-T Pro in speed density mode. 3.5 bar GM MAP sensor & GM intake temp sensor. I got it from TTP. I'd be glad to meet up with you sometime if you want to check it out.

[bomjoon]

so how much did ttp charge you for the set up. (w/o tuning) just parts needed.


who tuned you?

[shunderwunder]

$515.00 shipped for MAFT Pro, speed density harness, & GM MAP sensor. I already had the temp sensor but I think it's about 15 bucks. You will also need a non MAF intake. I got tuned by Bruce at Dyno4mance. He has done a few MAFT pro tunes, but is not completly familiar with the MAFT Pro speed density. He as well as a few others I have talked with prefer to tune a blow-thru setup instead of speed density as they are more familiar with it. When I called TopSpeed I was told they could do it but I didn't talk to Scott or Doug directly so I'm, not sure how familiar they are with it. The only people that I know are completly familiar with this setup is TTP. I was in a rush to get this done & couldn't justify the time & extra expense to go to Orlando for a tune. I am happy with my Dyno4mance tune & ended up wth 349.5hp on thier Dyno Dynamics. Bruce was a little upset becaus he only managed to get 342hp out of his X :D

[TouringBubble]

I've tuned speed density, but mainly with UTEC. Most tuners prefer MAF tuning because it is in fact a better choice ... the resolution is much higher and it is more accurate. Speed density takes a bit longer to dial in.

I'd also like to note that you can run a blow through setup and also operate the vehicle if you lose an IC pipe (unless the disconnect is at the TB). I would just suggest that you purposely disconnect an IC pipe and roughly tune the car that way to be sure it will have proper fuel in that instance. As long as air is metered in some way after the leak either setup will work in that instance.

[shunderwunder]

That sounds about right. It took about 4 hours on the dyno to get me dialed in, which in turn is more expensive also. TouringBubble if you would like I'll pull my ECU data & MAFT Pro data for you to take a look at so you can see what is involved to tune one. That is if my Tactrix cable ever shoes up. It's been over a week now.

[TouringBubble]

Thanks Shunder, but I'd rather not. I know how to tune for SD, I just haven't on that specific setup. All I need is to learn my way around MAF-T Pro. I'm working on a Supra locally soon that has a MAF-T pro setup so I'll get my bearings then.

The big reason is that it's common for some people to resell tunes that are not their own. I'd like to avoid any chance of that accusation. Not that your specific tuner ever has accused anyone of that or ever will, it's just a general practice on mine to protect my own reputation.

[shunderwunder]

I wasn't even thinking that, but you are right. I was thinking more along the lines of giving you the info needed to see what is involved in tuning a MAF-T Pro because I knew you hadn't had a chance to mess with one. Obviously if you are going to be tuning a MAF-T Pro car soon then you will find out soon enough. Had I been given more time I would have been your test mule. I litteraly finished my install at about 1:00am & was tuned at 10:00am that same Saturday & was ready for the dyno day the day after.

[TouringBubble]

It's cool man. you gotta do what you've gotta do. lol. If I were still in Atlanta I'd likely have more business. Everyone here has a V8 American car and there are several tuners in the area for those. I'm not sure I'd even want to get in to that market as I'm used to 30 hp gains from tuning ... not 13 hp.

[bomjoon]

so around $500 for maft pro way huh?

hmm from what ive seen it was around $500 for blowthru set up as well...

well since matt is more comfortable with blowthru i may stick to that.

damn i cant make up my mind~!!!!

AAHHHHHH~!!!!

lol

[bomjoon]

only problem with blowthrough is that the location of the new set up.

i dont wana relocate my battery or get a small battery. i need my optima battery for my stereo stuff.

[TouringBubble]

you are such a ricer Joey ... gotta have a full size battery for the stereo .. can't relocate because of the stereo ... shoot flames at 3500 RPM ... need different metering setup for a VTA BOV.

Have you considered a Lexus?

[bomjoon]

i was gonna buy a lexus IS350 but at the time they didnt have the IS-f or the manual version of it.
so i bought the ebo.

i like my flames.

im considering this cuz i dont want the car to stutter when taking a corner and keeping the same speed/rpm. a little light on gas and it stutters messes up the weight distribution and causes rear to step out when i dont want it to.


and i want VTA dammit.

[bomjoon]

im lookin for a good lowball price for lexus IS. you got one?

[shunderwunder]

i was gonna buy a lexus IS350 but at the time they didnt have the IS-f or the manual version of it.
so i bought the ebo.

i like my flames.

im considering this cuz i dont want the car to stutter when taking a corner and keeping the same speed/rpm. a little light on gas and it stutters messes up the weight distribution and causes rear to step out when i dont want it to.


and i want VTA dammit.

Sounds like you just need a good tune. But if you are set on VTA then you'll need a translator of some sort.

[bomjoon]

nah my tune is good.

its just the set up i have is horrible.

hks bov recirc'd and its horrible and dont let out air fast enough.
only good thing is that it dont leak. :P

[TouringBubble]

It sounds like you need a better DV.

[shunderwunder]

I've got an APS dual port for sale :D

http://www.evoatlanta.com/forums/showthread.php?t=780

[bomjoon]

my bov dont have the adjusting pressure knob thingy...

i guess its the older version...

anyways its hard to keep the same rpm boost level when im taking a corner.
i often have to lift during a corner cuz of my car will shutter when i go light on gas for just a tad. it will just blow off and wont let me keep the steady pace i was going.

its either i go full throttle or gain slowly when i hit the gas.

there is no gradually slowing down w/o letting off on the pedal.

[TouringBubble]

Yeah, that does sound like a DV actuation issue.

[bomjoon]

what ever the problem is i need to find it quick i cant wait.

[TouringBubble]

Do you have your stock DV? Put it back on and see how it feels.

[bomjoon]

no i dont have a stock one to try on.

i might just get a new bov and find out.
whats a good bov that you can recirc and later if i change my set up go VTA with ?
reccomendations?

[TripperFx3]

no i dont have a stock one to try on.

i might just get a new bov and find out.
whats a good bov that you can recirc and later if i change my set up go VTA with ?
reccomendations?

The APS dual port has gotten great reviews and you still VTA a bit, so you can keep your ricer sound :D

[bomjoon]

no i'll need one thats 100% recirc first to find out thats whats causing the stutter.

then i can go from there.

[bomjoon]

oh and btw its not rice when you get passed by a car with the ricer sound :P

[TripperFx3]

no i'll need one thats 100% recirc first to find out thats whats causing the stutter.

then i can go from there.

Then go with the Tial. The only problem is it can't be recired. You could also try the Greddy RS.

[Evolvedgti]

Then go with the Tial. The only problem is it can't be recired. You could also try the Greddy RS.

I thought they just came out with the first TIAL Recirc. I will find it!


Edit! here it is!

http://www.tialsport.com/prod_bv_Aq.htm

[bomjoon]

that is the weirdest looking bov ive ever seen.
lol

i like it looks unique.

how much?

[TripperFx3]

I thought they just came out with the first TIAL Recirc. I will find it!


Edit! here it is!

http://www.tialsport.com/prod_bv_Aq.htm

Yes they did and it's quite as a "queef" is what I commonly hear. Also it's not Evo specific and is actually quite a PITA to install on the Evo cause it's so large. I think what Joey wanting is a valve like the HTA that can be recired, but also VTA. Which I also remember the Forge RS has a VTA fitting and it's fully adjustable. Also the Go Fast Bit's which is a 50/50 valve is really loud.

Here's a ricer like you with the GFB set at 100% VTA: http://www.youtube.com/watch?v=_1rs31xONbE

Heres a clip of an Aussie show doing a full review of it on an Evo 7: http://www.youtube.com/watch?v=WcAVfRj9ez4&feature=related

[bomjoon]

no what i need is something i can test out my bov till i can figure out the problem i have.

i need like a stock evo9 mr bov for like a week orso...

if it fixes it im getting something that will be recirc'd and if not i'll go AEM, BT, or SD set up

[TripperFx3]

no what i need is something i can test out my bov till i can figure out the problem i have.

i need like a stock evo9 mr bov for like a week orso...

if it fixes it im getting something that will be recirc'd and if not i'll go AEM, BT, or SD set up

Oh ok. Sorry I misunderstood. I'd loan you mine as I have a Forge DV I could use for a bit (I don't use it that often cause it flutters at partial throttle), but being in Reno that puts a damper on it.

[TouringBubble]

I'd suggest the GFB Stealth RS. It's a hybrid and 100% adjustable from full recirc to full VTA. It's also easy to install on an Evo. Otherwise, I'd say the Synapse Synchronic, but it's a little large for the Evo in the standard position.

[bomjoon]

i like the idea of the gfb bov but if i do the Blowthru i wont have to change my bov

i know my hks sucks but i like the sound.
so im gonna keep it if i do the BT system.