Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Hey guys, now that I have finally got my ass in gear and put the Holset HE351CW on my built LS VTEC, I was able to spend a night tuning my car! Honestly, I think the HP numbers are a little high, however I really wanted to plot boost vs. RPM and 02 vs. RPM so see how good my tune was. Here are some graphs I created. I spent a few hours once I got home to actually go over the data and make some tables. This tune was done on 91 pump gas, 15psi, RC 550's. Im glad this turbo spools so fast! All my friends thought I was crazy bolting this up to my 1.8L. But as you can see it spools damn fast!

I tuned my car with Crome & Freelog - highly recommended!

http://i20.photobucket.com/albums/b2...RAGED_ADAM.jpg

http://i20.photobucket.com/albums/b2...AP_02_ADAM.jpg

http://i20.photobucket.com/albums/b2...Adam_Hp_Tq.jpg

http://i20.photobucket.com/albums/b2...9/IMG_1719.jpg

http://i20.photobucket.com/albums/b2...9/IMG_2124.jpg

http://i20.photobucket.com/albums/b2...9/IMG_2123.jpg

http://i20.photobucket.com/albums/b2...9/IMG_2120.jpg

http://i20.photobucket.com/albums/b2...9/IMG_2117.jpg

http://i20.photobucket.com/albums/b2...9/IMG_2110.jpg

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

ok

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

what the ---- is this?

you created your own dyno graph?

o look i made 400hp

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

i'm perplexed

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

It's very similar to the program I use for tuning purposes for evo's and wrx's...datalog lab. Basically it takes variables from the car and translates them into hp/tq numbers, which is basically what he did. Datalog lab that I use can be off if vehicle weight is entered wrong and tire size and air pressure is off, but quite a few people have tested it to be semi-accurate to +/- 5% when all the variables are correct. But more importantly it gives the tuner a baseline to work from to determine which parts and tune areas will actually produce power. It may not be accurate, but from a tuner's standpoint it's a lifesaver if you don't have a dyno readily available.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Well I thought it was kinda cool... It's not like I pulled these numbers out of my ass. I based all the calculations off my logs taking into account vehicle mass w/driver. I already said I think these numbers could be high. I just wanted to post what can be done using free software. Some might also find the pressure plot useful as the Holsets are becoming more popular. If you don't, good bye. The idea was to see how the Holset actually spools on a 1.8L Honda.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

See how a Holset spools on a Honda motor?

How 1999. ::)

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Oh, yah. Holsets are not getting more popular, and in the import scene they are becoming less popular. Holsets are all large chassis packaging nightmares.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Well I'm happy with mine and I would highly recommend it to anyone else. Spool time is quicker with this unit than both t3/t4 60 trim and the t3/t4 46 trim. I have owned about 6 different Garrett turbos in the last 3 years, so I can comment on their characteristics. I would never go back to any Garrett journal bearing turbo. I have never had experience with the ball bearings... For the price Holsets are worth, you can't go wrong especially for a lot of DIY'ers like myself. After all, this is "homemadeturbo". As for packaging nightmares, yeah the compressor housing is a bit bigger, but it wasn't that hard to bolt on. Mind you, I have a lot of space to work with. It would all depend on the design of the manifold one is using.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

15psi at 4800 rpm is pretty good in my opinion. You must think otherwise.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

i think he was referring to how people have been using holsets on hondas for a while now and it is nothing new hence the 1999 remark. like clear taillights are so '90s

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

I thought he ment since they are bigger, its not worth the hassle of bolting them in as the Honda engine bay can be tight at times. And I thought he meant the Holsets spool at 1999. Okay...

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

no,ofcourse not, everybody knows holsets get full spool at ide...

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Dammit I knew it, that's why my fuel mileage has gone down the drain...who would have thought.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Cool. I've tuned 6 different Garrett turbos in the last three weeks, and I currently own more Holsets than you have ever owned. You can take one turbo of any brand you please and bolt it to six different cars with stock GSR motors and it will spool differently on each one. Welcome to the motley assortment of parts found on a Honda, assembled by people of very very widely varying experience, knowledge, and ability. I prefer the Garretts because not only are the compressor housings "a little smaller" but the whole turbo isn't 1+ inches longer between max scroll OD and 1.75+ inches longer overall - dealing with any shelf manifold usually has the flange cocked to tuck a Garrett with at-biggest T04 S-cover against the block or VC, and the extra diameter and length of a Holset fucks things royally.

A ------- .50 trim T3/T04E will have 10 psi by 3500, 15+ by 4000 rpms on a ------- D16. A .60 will act the same with 200-500 rpms later spool, which still makes it spool faster than what you are claiming a GSR spools these turbos at. Your problem is that ram horn of yours, and just because it suits that Holset doesn't mean you've seen everything and know it all. Fact is, most T04E Garretts spool the same or faster on your engine, only with a different manifold of whatever style. A friend's GSR running .60 T04E with stage five turbine and .63 AR housing makes first positive pressure at 2500 rpms and is at 15 psi by 4200 - whoopty-doo.

I have a T67 with P-trim wheel that made first positive pressure at 4200 on a friend's 84mm 2.0/VTEC, 10 psi by 5500. On my 85mm LS it will spool quicker than your Holset. It's all in what you know.

If you want to turn this thread into something useful, like a how-to on using the software tools you utilized, a large slice of HMT user's base will appreciate the ---- out of it. If you want to keep on telling us about Holsets, most will find you pedantic as we already know, and some like myself will find you annoying and/or misinformed. I advise a change of subject... and that you post porn.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

I didn't mean to annoy you or anyone else on this forum. Why so much hate? If you would have looked at the ------sheets instead of criticizing my posts, you and anyone else can see how the calcs were made. I was hoping some would show interest, maybe even post good ideas on how to make the numbers more accurate instead of bitching. I will delete this for you, Sir, and all the others who don't want it up.

Re: Homemade Dyno Graphs/Pressure Plots/02 Logs
 

Whoa, Bro! It's nothing personal.


https://www.homemadeturbo.com/forum/...?topic=72536.0


Now post some ------- titties. :P