Well went to the dyno today for some tuning and I got some good news and some bad news. The bad news is the first run was only making 200whp but I also had slightly over 200 ft pounds of torque too (i didnt ask them to print out the first few pulls because we were still tuning) after we got it tuned we did one pull which produced a 231.30 whp and 194.83 ft of torque. Im kinda dissapointed but we discussed it and what we came up with is : my air intake temp was 261 degrees! (not good) My spark plugs are bad causing a missfire which equals a 60 hp loss at peak power almost like turning the key off and then on again. also lowering mr CR down to 9:1 hurt me pretty bad too. My tuner is one of AEMs EMS techs and he knows his stuff. He also said that the very high air intake temp was causing almost a 100hp loss , I thought this was kinda high and questioned him about it and he said that it was a fact that I would be losing this much power. So hopefully I can pass emissions this time around and if i do, well its back to the dyno with new plugs and im gonna let the car cool down for a couple of hours before we do a run so the intake temps will be less and hopefully we will be closer to what I was expecting.

 

Yea, something is wrong with those numbers for sure.

You considering looking into the Endyn package to lower the intake temps? SOMEONE needs to make a cooler kit for the damn thing....I know someone posted up thoughts for one a while back but never heard anything after that.

 

is it the blower itself that causes the high temp or another factor?

 

Yes the blower compresses the air and makes it much hotter.
I do have a prototype cooler that I designed and it is actually on the car right now but I need a couple of more parts to finish it so I can use it but it should definitly help. The numbers im getting are about the same as the ones from jackson racing and everybody says their numbers are high so Im on the right track just gotta fix a couple of bugs. The good news is that the car is finally tuned well.

 

I have to get my scanner working then ill post the dyno graph, you will crap your pants when you see the misfire its right at 6400 rpm so I know that deffinitly hurt the numbers.

 

How much boost was ran?

 

9psi pulley but the tuner said the aem showed from 9 all the way up to 12psi on different runs but im not sure what psi was attained on the one power pull we did.( I was to busy checking out the 9 second supra that was there!)

 

does hondata make an intake manifold gasket for the 4th gen ...or can they use the 5th gen gasket?

 

The 4th gen can use the same one as the 5th however it doesnt really make much of a difference though so I didnt bother getting one. I saw the dyno results from using the hondata gasket and they did the dyno runs on two different days where the day that they tested with the gasket was a much cooler day then the day they tested without the gasket , sure the temp is going to be lower it was alot cooler that day, lol.

I just need to get the rest of the parts to make my cooler work.

 

Honestly, considering you've dropped the compression to 9:1, I don't think your numbers are far off at all. Had you let the car sit for maybe 30 minutes for your final run to let the blower cool off, you would have gained a few ponies. Heat soak is a bitch, trust me, I know. 9 psi JRSC ludes at the stock 10:1 compression typically have made about 250 whp. You're only about 20 whp off.

 

I am confused, you said you lost 60 hp from spark plugs and 100 hp from intake temps. So you dynod at 231, and what you are saying is you should be at 391hp? Or a total loss of 100 whp which would land you at 331hp. Only at 9psi that sounds kinda high.

wayne

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedlude3g &raquo;</TD></TR><TR><TD CLASS="quote">I am confused, you said you lost 60 hp from spark plugs and 100 hp from intake temps. So you dynod at 231, and what you are saying is you should be at 391hp? Or a total loss of 100 whp which would land you at 331hp. Only at 9psi that sounds kinda high.

wayne</TD></TR></TABLE>

Not too high for a turbo equivalent. (With intercooler) There's a guy on here saying that he made 360 or something with 9psi.

The temps are so high because this blower wan't meant for that kind of boost. It's way past it's efficiency range. This is a perfect example of lost returns. You can boost the crap out of anything, but the heat defeats the purpose. For most of you, I'm sure, already know this. I'm running into the same thing as CAZ. My intake temps are near 225-235. Just not something I want blowing into my engine. I guess I'm going to put my old pulley on. (If carol's program doesn't work) Hook up a water injection kit, and Call it a day. If I'm 20 hp down on a 9lb kit, I'll live. It's still fast. I enjoy it. and Will get to stop worrying about it until I get the Turbo System purchased. ....

 

261 degrees on the IAT. wow! not that i dont beleive it, but i dont beleive it. you sure you dont mean 161 degrees. the highest i have seen an N/A car get on the dyno is 115 degrees after heat soak. i understand that a charger creates more heat but your ready to bake a cake with those temps. good luck with your tuning though

 

How can you compare a car with a blower to an N/A car?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junbb1 &raquo;</TD></TR><TR><TD CLASS="quote">261 degrees on the IAT. wow! not that i dont beleive it, but i dont beleive it. </TD></TR></TABLE>
No, that's really how high they get with the "9" psi pulley.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by biglew &raquo;</TD></TR><TR><TD CLASS="quote">How can you compare a car with a blower to an N/A car?</TD></TR></TABLE>
(You can't.)

 

How was the JRSC installed on a 4th gen, I thought they dont fit?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote"> How was the JRSC installed on a 4th gen, I thought they dont fit?</TD></TR></TABLE>
Do a search, it's been done by a number of people.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen &raquo;</TD></TR><TR><TD CLASS="quote">
(You can't.)</TD></TR></TABLE>Yeah that was my point.

 

Do you have to do any mods to make it fit?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote"> How was the JRSC installed on a 4th gen, I thought they dont fit?</TD></TR></TABLE>By method of PFM. And like shark said search. There is more than one thread on the topic.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by biglew &raquo;</TD></TR><TR><TD CLASS="quote">Yeah that was my point.</TD></TR></TABLE>
LOL, sorry biglew

 

I kind of doubt those power losses quoted by your tuner (60, and 100 hp). Especially since most jrsc seems to dyno between 200 to 240 whp.

 

Well im not gonna argue with this guy , he just finised up tuning a 9 second supra right before my car , he knows his stuff and my car is running the best its ever ran right now . How do I post a pic of my dyno chart? Do I have to have it on one of the picture sites to do it?

 

Maybe Im reading the chart wrong but it looks like a 60 hp dip on the missfire, I said that not the tunner, he said the plugs them self were causing a 10-15 hp loss and he said the 261 degree air temp was creating a 100 hp loss. Under boost im between 9 and 12 psi according to the AEM ecu not my boost gauge cause that showed 13.something.