I will post up any logs you desire Mr. DSMotorsport My only problem really is time and spark plugs... I foul spark plugs after roughly 4-6 pulls at that high boost. I am switching to a BPR8ES instead of the BR8ES so hopefully they may last a little longer. I still can not figure out the whole foul thing... the plugs look PERFECT by all means. Oh well, Ill find out some other day... probably the same day I get the car to idle Maybe tomorrow after I run the car at the track I will get some more logs. Ill even retard the timing to -5 from 1-4k and do a pull just to see what it does with spoolup... it feels like it will spool the hell out of it but we will see tomorrow.

 

This F'ing guy is my new favorite EvoM poster! I guess I'm just alot more hard core than the rest of you guys. I wouldnt trade my 2.0 GT35 Galant for ANYTHING smaller, spoolier, and less powerful. I remember back in '98 when a 20G on a DSM was "way too laggy and unstreetable". Oh how times change, or should i say Progress.

 

This is literally the spoolup I got just bolting the SCM61 onto the car, with the boost controller adjusted to 25-26psi (basicly as I left it from the stock turbo spiking to 25 settling to 21)

This is a non ball bearing turbo. GT35R comp wheel, To4E comp housing. T350 76trim turbine wheel (t3 stage 5), ~.6AR "dsm bolt on" pte turbine housing. Internal wastegate. I belive this turbo is similar in size to the BR580. It's the largest standard DSM bolt on turbo that Precision offers with internal gate. They rate 620hp.

Below is the 2nd gear line added to the comparason of the Evo8 data collected so far.

 

I switched back to the stock irridiums and have done a buttload of passes (100+) on them @ 28psi and they are still fine. I am not sure if I can tap my AVCR boost signal to log my boost on my plx datalogger. Maybe if I get an AEM I can contribute to this thread with hard data.

 

How in the world did you infer that from my statement. I was praising the AMS built setup on how fast it spools. It spools Faster than my car. And my car spools rediculously fast. I will stand by my statement. if you have a gt35r on your car and you think its a laggy turbo, please come to tampa for a ride in a properly setup gt35r car. I promise you will leave dumbfounded on how fast the car makes power. It would make an ungodly auto cross car if you setup the suspension to keep the front wheels on the ground.

I am sorry if you need logs to prove these statements. I dont have logs to give you. Look around for the AMS evo videos. I am sure they are still on the net somewhere. The in cockpit camera CLEARLY shows how fast a gt35r can spool when its setup correctly.

 

What Im saying is if I had to say when this SCM61 spools up to 25psi by using the boost gauge/tach, I would tell people 5500 to 5600rpm, maybe a bit sooner (but im wrong). Then you go look at the datalog and find its 700-900rpm later in real hard data then my brain interprets it from looking at 2 different gauges at the same time. my seat of the pants interprets "spoolup" more by the car starting to make more torque than by my eye watching 2 moving gauges at the same time. These big turbo cars can make significant power before they are at peak boost for sure. We are trying to compare boost response curves, NOT power at the wheels curves.

Anyway, the only way to put this to rest is comparable hard data. Anyone with an EMS and AEM GT35R kit...Id love to have a datalogg of rpm and boost to compare. Gotta be someone out there with both items willing to post up a log supporting the mind blowing spool.

Can AMS show us an EMS log with thier turbo kit with engine load and engine speed? Strip down a customers street tune log and only show us an abstract of RPM and Boost if you don't want to give away any tuning secrets.

 

Doesnt that black AMS EVO have like 2500 in the head? which I would have say would HELP out the Spool on that turbo.

 

So you give us a link to a video you already know doesn't work anymore. And you say in this thread you HAVE EMS LOGS that your pulling your data from, yet your not going to actually share the real info. Thanks Your contribution of hearsay is much appriciated.

The load on a dyno pull is also not even close to what you see on the street in the same gear. An evo8 weighs 3200lb + driver. An awd dynojet sometimes has 5000+lb of enertia load if it's got both large drums. That's not even close to representing what the spoolup is going to be like on the street.

APPLES TO APPLES PLEASE!

All we are asking for is real world data from pulls on the street. Is this really too much? Anyone with a GT35R 650hp turbo should have atleast some form of datalogging to tune with.

 

Why did you go to a colder plug than stock? Most of the high level tuners are recomending to stay with the stock heat range of the BPR7ES, and your fouling problem could be from running the colder plug.

Keith

 

You forgot to mention that the car in that vid is a 2.3 stroker motor using a N2O spool up shot. All bets are off on spool up when you are using N2O as a spool up aid!

Keith

 

I will get you one with an Autronic setup hopefully shortly. I should have some of his logs on one of my laptops from when we were tuning his car. He also has a GT42r so I can probably get some logs from that new turbo as well. And I dont feel like mentioning any names but he knows how to tune

Oh... and i know how he is getting full boost by 4.2k or so... here is a log. This is from a bogged launch with no anti-lag. On a good launch with antilag I will get it to hit 25psi off the line and hold it. I think the tires usually spin around 4.5k but it is at full boost in FIRST gear! lol

 

I went to a colder plug to help fight detonation. I planned on running the car at 30+ psi on only 110 Octane... to help keep it there and make the most amount of power I decided to go with the coldest plugs I could in reality. The few 30psi tests I did are showing that it will take the 30psi with no knock so it must be working... granted I had to pull some more timing but it is still gaining over 10hp per psi so even with the less timing, the boost is still giving it more power. I havent honestly tried to change them to 7's yet but I am going to once I get a chance and see if the car takes it without knock.

Oh, and one other way to get the car to spool like mad is obviously true anti-lag. Yes, even in real world city driving you could theoretically be a full boost in any RPM under any load if you used WRC style als. Maybe thats what he uses! LOL

 

Oh.. and DSMotorsports... I love your graphs! You should get some logs of other turbo's (White Rabbit), 10.5 Hotside, TME, 3037, GT42r, etc...) and post them in your graph. Then we can make a good thread, lock it from people talking on it and make it sticky. It will put to rest A TON of people that ask about spool-up in realworld.

 

exactly what my intentions are. Unfortunatly, like every thread on Evom, it will get muddled with arguments.

It only takes a few minutes to go through a log, pull the boost/rpm info and type into the spreadsheet to add it to the graph. Im happy to do it, so long as more data keeps coming.

 

Are you sure about that? It was my understanding that this car did not use N2O for spool up.

Also, I wouldn't compare stock block 2.0 with a 35R to a 2.3 & headwork with a 35R. It's not a fair comparison. A car with a stroker and P&P head will flow significantly more air than a stock head/block.

The only way, I would put a 35R on a evo would be with a stroker and head work. The information posted on this thread only confirms my thoughts.

Listed below is a quote from Martin @ AMS about their stroker & their 35R kit & how it spools up compared to stock:

Quote: "We just ran the car at 24psi with water injection and made 501whp and 430ft-lbs of torque. I did some road tuning with this car the last few days and it will start making boost at 2200-2400rpm with 10psi by 3K in 4th gear and 24-25psi by 3500-3600rpm. Awesome car to drive with a very wide powerband, perfect for the street or road course. You have full power and torque from 3500rpm to 8000rpm. Where the stock turbo start to drop power at 6500rpm this thing keeps making power all the way to redline. To compare power bands, the stock turbo hits full boost at around 2.9-3K rpm and makes usable power to 7K rpm, the stroker 35R setup hits full boost at 3.5-3.6K rpm and makes useable power to over 8Krpm"

From this thread: https://www.evolutionm.net/forums/sh...4&page=1&pp=15

In my opinion, if you are looking for a streetable set-up with not as much lag, this is the only way I would put on a 35R.