I went down to BATLGround today to get a BOV mounted on our bodyshop guy's WRX and they let me get a copy of all of his dyno plots. There are 29 of them in all. This is his last one...


All done at 5psi w/ pretty much varied between 250 and 256hp w/ torque somewhere between 250-257. This is also with his old 2¼" non- mandrel bent dual exhaust.

I put the watermark and the info on the corner just to make sure it isn't used for anything else. I'll post the rest of them up when I figure out this software better.

 

I REALLY want a turbo now. Don't even have to stress your engine to get to 250FWHP.

 

What's the gas mileage on that, btw?

 

No idea on gas mileage but it shouldn't be that much worse than stock if he doesn't keep it floored all the time. I'm sure he'll post when he sees it.

Comparing it to JAY25's plot Jason's car puts down about 20ft-lb more torque at 2500rpm and builds on that until the wastegate starts dumping boost at 3500rpm which is about where Jamie's T4 starts spooling. Of course this is comparing both cars dynos without 3" exhausts which would show significant improvements on both.

I forgot to get Jason's stock dyno plot he did the week before but I'll do that when we take Shadow's car in soon.

Also, anyone else have their dyno runs on disk so I could enter them and compare them? Just trying to get an idea of the powerband compared to other forms of FI, nitrous or NA.

 

nice turbo boost power...

 

yeah knight rider.

 

C'mon Jason, get the boost up and get better #s.

I know you can reach 300+ easy

 

Da duh da DAAA, da duh da daaaaaa

 

interesting

 

As many runs as I could fit on one sheet.


His best run here:

 

Good stuff at only 5 PSi...

I want 10 PSi on my prepped VQ35 and auto tranny (next year).

 

Damn he must be having fun in that thing.

 

Suprisingly not that bad, he told me he gets around 21-22 mpg in mixed driving. Not much worse than he got before the turbo. If he gets on it...That's a whole different story then.

 

Hopefully we'll have everything perfected by then. I'm hoping to get my own setup done soon and I'm shooting for better numbers than this, on the auto. We will see.

 

You can't compare Jaime's dyno to Jason's.



Jay has the MEVI, so there is a TQ loss down low.

Just in case you did not know

And I'll try and find my last dyno for you

 

Then after you do that, you think you can send my dash pieces I have been waiting on?

 

It's coming, we didn't have enough black chrome material left and had to wait for more to show up. Sorry for the wait.

 

thats fine, I been calling and no answer, must be tied up in the turbo things. Just thought you forgot about it or something. Good luck with your car.

 

Didn't forget, just haven't been able to answer many calls. Lots of business things going on and the other projects too. Thanks for being patient though.

 

Well if it's any consolation, I've been doing all the work on the cars lately while Jeff handles the business itself.

As for the torque drop from the MEVI, what point does the MEVI x-over? Didn't know it affected low end torque that much... Anyone have a comparison on FI cars? Or has anyone tried setting it permanently to the secondary runners? Not really familiar how much affects FI Maximas since boosting seems to negate the benefits of variable intakes...especially on Hondas. From what I've seen on most boosted cars, the shorter and more direct the intake plenum the better.

 

Shorter is better for mid-upper end HP, yes, but the same principals still apply with long runners and forced induction as N/A engines with long runners...

 

Looks interesting to say the least.

 

http://forums.maxima.org/showpost.ph...4&postcount=11

 

I got a T4/T04E for that purpose. I dont want my turbo to spool before 3k. We are front WD cars and traction is a biotch from a dead stop. I am usually playing at the track or I run into someone. Even when I am on the freeway and I downshift, Ill fall right into the power band. I shift and got plenty for top end. US manifold clearly gives plenty of torque. Battle ground tuned the AF very well. I on the other hand have the MEVI for top end and cant afford to run lean up top. Jason thats good numbers for 5PSI congrats. Mishap Plot them up. Compare 5 PSI to 9.7PSI to Kevins 10PSI. I believe me and kevin have the same set up.

 

Did you happen to play w/ a red S13 240SX notch w/ a SR20 swap sometime last year? Down at BATLGround yesterday somebody mentioned getting into a race against a very fast black Maxima sometime last year when I mentioned turbocharged Maximas.

Here's a direct comparison of the two plots:

I used Jason's last run b/c it's one of the few where he went all the way to fuel cut (Pansy for not wanting to blow up his car). I think that's Y2KevSE's highest run but I have to look through some more plots. From what it looks like the T4/T04E isn't being pushed all that hard to put down those kinds of numbers which is very impressive. Jason's car puts down a bit more torque down low which isn't bad considering it's a basic T3/T04E non-ballbearing but since he wasn't getting above 5psi there we can't really see how the car reacts on the top end w/ the smaller turbine. It does look like Jason's torque drops off a bit faster from 6000-6500 but that could also be from his regular intake manifold. Traction is an issue on any FI setup w/ the Maxima...we built Jason's car to smoke those tires for as long as possible since it's unlikely he will ever race anyone. Shadow's car has an LSD and hopefully he won't run the car on those huge 19's so traction should be less of an issue.

Anyone have an automatic turbo dyno plot? I want to get something to compare Shadow's car against when we finish it up. We're experimenting a bit with his car so it should be some slightly different numbers. Unfortunately the turbo is taking a little longer to get here so the project is delayed a bit.

 

Hopefully we'll get Jason's car to 10 psi soon to see if the turbo still puts out good numbers there. It should still be in it's efficiency range at 10 psi on a Maxima, so we should see good numbers, but only the dyno will tell. He's got his 3" exhaust on and is seeing 6.5 psi right now, soon he should have a boost controller and get it up to 10.

I'm going with a bigger turbo, so we'll see what that does.

 

awww...maximas are so cute...all that power...

 

Earlier this year I got on the freeway and saw this red 240SX. He gets behind me and I floor it to find to find two open lanes. All I remember is me trying to line up with him and he wouldn't go. All of a sudden he punches it with out me knowing he was going to do that. So he just took off. I looked at my speedo I was going 90MPH, I just let him go. Is no point for me to go past 100, and chase him down. He got off the freeway very quick. I think he didnt want to line up because when we entered the freeway he was tailing me and I floored it. Too many cars that day to play. Maybe thats why he said I was quick. But that was me. It looked like a asian guy in older model 240SX. Tell him about the Nov 9 meet we are holding @ autozone, not too far from where I ran into him. On cobb and getting onto the 285/75 South. I cant view your docs but will look at them when I get home.

 

Who you calling "cute" GTi boy?

 

me of course.. don't let the user name fool you, he sports a 420rwhp FD now, the 200whp GTi was flipped by it's recent buyer. RIP.

i am kind of cute though..

 

Shouldn't his car be making alot more power with 5 more psi and more hp to start out with. So for every psi over 5 he only got 20 to the wheels. Man I thought it would be alot more than that.

 

Yes, that should be the highest run (#41). Don't bother using the other ones because that's when two pistons smacked the spark plugs leaving zero gap (as you can clearly see in the 4th run). Notice how power at 6500, on each run, falls like a ton of bricks? #44 is where something truly messed up... see wavy power curve.

The 5th gens have a different manifold (similar to the one Jaime is using) so torque and power down low aren't as high as on a 4th gen USDM manifold. We give up some power/torque down low in exchange for having better power/torque up top (after 5000).

 

That's still with no MEVI and 2.25 exhaust. A 3 inch exhaust will show more gains once he starts turning up the boost.

 

is there another car that is turbo'd making the same power at 5psi?

I didn't think a 90+ HP increase with crap exhaust at 5psi was bad, in fact I thought it was the best so far

 

As the movie quote goes: "I'm wit' chu." I thought this was an excellent gain for only 5psi. One of my fears of boosting is at 10pso, you must be stressing an awful lot of parts therefore requiring more maintenance.

So, anyway ... who can tell me the movie:

"I'm wit' chu. And when I say I'm wit' chu, I don't mean it like an expression like 'I know what you mean.' I mean it like 'IIII'm .. wit yoo'; I'm wit da goverment. I'm undercover."

 

Good numbers Sadler...Boost it up a little more so we can see some more ponies get loose!!

 

No I am saying yours is good, I am talking about Y2k's car. I thought his car would be making alot more power. I see his power keeps rising when Jasons falls but I don't know if that is the intake manifold or the bigger turbo?

 

http://forums.maxima.org/showpost.ph...0&postcount=32

 

A little of both I would think.

BTW, Y2Kev's car makes a lot of power. How much would you expect at 10psi? 400? 500? That's all turbo, if you check out the numbers, it's about where it should be. With more fine tuning, it may be a little higher. It's not like Hal's dyno where he's spraying like a 100 shot.

 

A little higher?

I'd say 350-375whp range once tuned with a healthy compression engine.