Dynamometer Results & Comparisons - 402 Results with TFS heads and small cam

I just wanted to post my results of my recent 402 build for my C6 A4 Z51. Below are the specs.

MTI 402 (11.5-1 Compression)
TEA TFS 225 heads 61cc
224/228 116 LSA Cam from Cartek (2x)
Fast intake (Ported by Ron)
1 3/4 kooks headers
Callaway CIA
Vig 3200 Stall

The car sounds and drives remarkly close to stock and pulls harder then anythting I have been in. The horsepower is actual RWHP and I figured who cars about corrected when I have a A4 auto with a unlocked TC :)

http://eli-server.eliteintegration.net/402-Actual-RWHP.JPG


Her is one with SAE corrected horsepower with the diffrence between a ported LS intake and a ported FAST.

http://eli-server.eliteintegration.net/PortLS2vsPortFaston402.JPG

Let me get this right you made 443/435 SAE from a 402 with a FAST and TEA/TFS heads???


:lurk:

He said unlocked, but the curves look locked to me.

Not bad considering the small cam, auto, unlocked and stalled converter. I'm sure it feels good on the street!!

IF what you wanted was a VERY streetable N/A setup I think you got what you wanted.

Ohhh yea....It's a blast and sounds and looks very stock witch was one of my goals. With the converter I have you can not lock it at WOT. also like i said the car had a hard time staying on the dyno at WOT o Im sure that must account for some lost.

Good numbers then for such a stealthy set-up. Love the car too. That is the color I would get.

I bet that it is a pleasure to drive with that cam. I can tell you though that you could get away with alot more cam w/o lossing much drivability with that stalled auto.

did u make 443 or 475 because thats what the second graph says

443 corrected...the higher one was uncorrected.....

I think it is about normal with a unlocked converter. It should run very well

Great car, great driveability, great performance.'

I am rebuilding my 402 and putting in a smaller cam. Well at least a bit less overlap to get better driveability. 80% of my use is street driving and for the other 20% I am more traction limited than hp limited so giving up a slight amount of peak power for better manners will make for a more useful car.

Congratulations on not having to have a dyno queen.

Perry

Let me get this right you made 443/435 SAE from a 402 with a FAST and TEA/TFS heads???

And with this size cam I would think the FAST intake actually is less helpful than an LS6 intake would be since the LS6 intake will produce a bit fatter torque curve but a bit less high rpm power.

Perry

Thats a nice setup. No race car idle, and has the power to match a Z06.

Great car, great driveability, great performance.'

I am rebuilding my 402 and putting in a smaller cam. Well at least a bit less overlap to get better driveability. 80% of my use is street driving and for the other 20% I am more traction limited than hp limited so giving up a slight amount of peak power for better manners will make for a more useful car.

Congratulations on not having to have a dyno queen.

Perry

This is a great point, I could have easly put in a larger cam and to pick 30-40 RWHP but prefered to have a nice mild sound and great low end torqe with power where I send most of my time. I have had the pleasure to ride with guys who make huge HP and got alot of ideas of what i wanted and what I did not want.

I will be at the track soon and I'm sure I will pull mid 11's with run flats in good weather :) If not then i will flip the switch for the spay and make use of that forged stocker :drive:

What kind of MPG are you getting? I'm looking into doing something similar to your setup.

About 14 MPG because I can't keep my foot of the pedal :drive:

Really it gets about 17MPG in the City and 22MPG on the Highway if I don't hit it to hard.....

Nice mild setup man & congrats :cheers:

peace

About 14 MPG because I can't keep my foot of the pedal :drive:

Really it gets about 17MPG in the City and 22MPG on the Highway if I don't hit it to hard.....


Man my gas mileage is horrible compared to yours and I have no where near the power that you have. I'm only getting about 14-15 mpg period and that's with hardly any WOT bursts either. LOL. I figured if I went to a larger mildly build CI motor I could get everything that I wanted out of my car more pwr/tq and better MPG. Hell I thing it would save me money in the long run in gas if I did that. LOL

What MPH does your converter lock up at? Mine locks up at 54 MPH and it still lugs the motor.

To be honest I'm not sure when it locks up.....I have only felt it lockup once and that was on the freeway doing about 65. I do have stock injectors so i'm not sure if that has anything to do with it. I also noticed I was getteing better alittle better mileage before the Vig 3200. Its also in the tune, by default GM conservse the trottle.

38-42 lb injectors and a plug and play pump and you will pick up 30 rwhp and 10 wtq.

How do you figure?

Wow.....Please Explain....... :corn:

I found out that I am running about 22 degress timing durning the upper RPM range. Is this what everyone else is running? Do you think more timing would make a big diffrence?

I am no tuner but I think my timing n/a on my tune is 28.5 degrees in the upper RPM range with a stock cube motor.

I found out that I am running about 22 degress timing durning the upper RPM range. Is this what everyone else is running? Do you think more timing would make a big diffrence?

Hell no buddy just add some more fuel & set the timing degrees at (27-28*) in upper RPM 'n definitely you'll see the gain :devil: :devil:

peace

I do not agree with that as a blanket statement.

the heads determine timing. The better the heads the less timing needed.

Stock timing on the LS1 motors at wot hi octane hi rpm was 28 degrees true. However stock timing on the Z06 under the same conditions was 23 degrees. Which one made more horsepower?

You need the timing your motor needs. Not more not less. Tuning, a wideband and a dyno with great logging software are your friends here. I would recommend hiring a professional tuner with the appropriate software to tune your car. If you have done that, than leave it alone.

This board has an excellent tuning section where you can get some good advice but recognize that to use the advice and separate the internet crap from the truth you will need to invest a hell of a lot of time learning this portion of your car. It is probably way cheaper to employ a good local tuner.

Perry

very nice bro :judge: