Ron@Vengeance

iTrader: (51)

This is a nice A/B comparison. Customer came in to get his combo tuned after installing everything himself. Car is a C5 Z06 with a forged shortblock/all bolt ons and an FMS F14 camshaft (low 230s duration)... After making 418 to the tires several times the owner wasnt too excited with the results. He stressed that he wanted more power but didnt want to go up in camshaft and lose the drivability he has. We showed him a set of the TrickFlow 220cc As Cast Cylinder heads and told him these heads should produce 15 to 20 more RWHP over the Darts and he could sell his Darts to offset the cost. So off came the Darts and on went the TrickFlows..... NO OTHER CHANGES WERE MADE. Results are below...

19rwhp gain
17rwtq gain

This is thru a full exhaust and an LS6 intake. Not too shabby for a set of 1679.00 Budget Cylinder heads

allngn_c5

iTrader: (3)

Very nice a - b comparison.

As usual Ron, right on the money. You said 15-20 and he picked up 19 rwhp and 17 rwtq. How do you think his combo would do with one of your ported 92mm FAST intakes ?? Another 15 rwhp over the ls6 intake ??

"full exhaust" ??? Stock exhaust with cats and mufflers, or does he have headers with cats and muffs ??

PewterScreaminMach

iTrader: (7)

Those are some great gains and strong numbers considering the overall setup. Very nice comparison. It's rare to see a swap with nothing else done. Can you send me a link to these heads?

ScreaminRedZ

iTrader: (3)

Very good gains. Looks like the Darts weren't any better than stock LS6 heads out of the box.

smok'nZ

iTrader: (160)

were the darts 205's? he could have got that much power if not more out of a ported fast 92/92 instead of changing the heads

firefighter813x

iTrader: (6)

You're probably right on that one. A lot easier to swap too.

Firehawk441

iTrader: (41)

Complete across the board gains. Very nice.

Ron@Vengeance

iTrader: (51)

Not really.. He sold his Darts for 950.00... Picked up TFS As Cast for 1650... So he has 700.00 in the new heads plus gaskets and a little time..

NOW when he does add the FAST it will actually be worthwhile

bad95killer

Ron , i think Someone missed his math class back-days lol...Man you never cease to amaze us buddy just keep it up guys

peace

Mike@Diablosport

iTrader: (2)

Did the new heads add any CR?
If not, that midrange torque bump is stellar for just an airflow improvement.

bad95killer

Obviously the TEA 220cc runner plays major role here to out flow Dart's heads so relatively its airflow improvement , Correct Ron ?!

peace

JS

iTrader: (4)

Ron were the Darts 205's or 225's
Just curious...

allngn_c5

iTrader: (3)

Also notice the big jump at 3000 rpms.... Big increase in torque down low, an 40+ rwtq and 30+ rwhp at 3150 rpms is nice. Must really feel it with the SOTP dyno too. And the smile dyno must be working overtime.

As usual, good job Ron. Did you ever mention what you expected one of your ported 92mm FAST intakes would add to this setup ? I didn't see if you did. I must've missed math class too.

VIPERBLUELX

iTrader: (2)

I thought the TFS heads required aftermarket roller rockers?

Isn't his power still low for a low 230's cam, TFS heads, and LS6 intake?

Heck I made 420rwhp on yalls dyno with a junk reverse split cam and ported 243's and LS6 intake, and I thought that was low.

NEMESISVETTE

iTrader: (2)

I was planning on puttin my Comparison dyno result up and BAM!!!! Ron beats me to it!!! LOL This is my car guys and the Dart heads were 205cc. Im not a product basher so I will keep my opinion of Dart's heads to myself. Ron and Mike at Vengeance have played a huge part in the growth of my vette and its power increase. I have learned that this guys know alot about what it takes to make HP. Removing and swapping heads is a day job for me and the trade off was well worth it. I got a great set of TrickFlow ascast heads that I can continue to grow with at a outstanding price. I bought the Dart heads early last year and have changed multiple things including motors,cams, ect. So I can say the Darts have been tested and tested over and over. Never got any numbers that made me a fan. So when I finally listened to the advise given by Vengeance-- I see results. The car has a decent cam in it with the F14.
The car drives like stock thanks to another masterpeace of tuning from Mike.
My car did run into a few issues with the LS7 clutch shittin da bed on the dyno, we had to keep stopping due to clutch heating and slight slip. The stock injectors were at capacity as well. Even with those issue I drove out of Vengeance with a great tune and a big smile . So thanks guys and I will be getting the necessary Tex. clutch and injectors soon.

smok'nZ

iTrader: (160)

i wonder what kind of results would happen if those were dart 225's? or if you would have had your 205's hand ported by tea

CraZee ZO6

nice work... as cast tfs 220s are getting it done as well.

VIPERBLUELX

iTrader: (2)

Yeah comparing a 205 head to a TFS 225 head is sorta apples to oranges, but good to see he got some nice gain.

NEMESISVETTE

iTrader: (2)

Compare price if you like. I paid $50 dollars less for the TF heads than the Darts cost me. O and the TrickFlows I used were the 220cc ascasts.

ScreaminRedZ

iTrader: (3)

Definitely a nice gain for the money spent, in the end! I was originally thinking of going with Darts on my LS1, but more and more there seem to be better choices even for the money.