Hello, I need some help picking a head and cam pkg. Current mods are 90 fast pkg, lg headers,borla exhaust, raptor air intake&bridge . Im not sure what combo will give me the most rwhp. oh and its a 02 z06. thanks

 

The most rwhp out of a 346 I have seen is Vengeance Racing's cam/TFS heads package. It made over 520rwhp.

 

Do you have a website?

 

You should check out mtiracing.com. We have several engine packages for the C5 vettes, along with suspension, brake, safety, and aero mods. If you want good, reliable hp then check us out. Or feel free to call the shop @ 770-919-7774.

 

that is just fvcking nuts

 

I have the same set up as you and went with AFR 205's and a Tony Mamo custom grind......We shall see what the Z puts to the ground next week!

 

http://www.vengeancerd.com/

The Vette Doctors also had a TFS combo that was right at 500rwhp also.

 

Thanks

 

Thanx for the confidence in our company guys!!! Our Vindicator/TrickFlow package has made over 500rwhp about 6 times now at our shop AND at independant shops around the country. This package is still very drivable while making absolutely insane power thru the entire power curve.

Give us a call @ 678 513 7105 to discuss your needs in further detail. With the mods you already have you are half way there to making the big #s!!!!

 

So does www.EastCoastSupercharging.com, I think all of the good shops can do it.

 

thats me..


Moral of the story, trickflow heads ROCK!

 

Also check on LS1tech. com for a feeling on when combonations are pushing up numbers.

 

I have a 2002 ZO6 as well and did 511RWHP on my stock cube engine after the mod.

There are some good options here around, and you will find some AFR package from LGM making the numbers, TFS are also reported by members on this forum to make those huge numbers for this kind of small Ci...

I did choose a different way, wanted a ton of reliability, flycut was not in my options and my wife has to go shopping with the Z if needed, which is the case today...

Take a look at my thread I opened on this modification path, a lot of pics, some very accurate technical info plus three videos of iddle power and streetability inside...I also wrote somewhere inside the real cost of my mods.

Here you go:

http://forums.corvetteforum.com/show....php?t=1609450

Christian

 

HP Sells packages, tq wins races.

Ask yourself what do you REALLY WANT?

IMHO ppl want realiabilty, but dont tell the builder that, as will as more HP & TQ numbers.

Talk with a builder, talk to ppl who are happy with a product, and there might be a few ppl who are not happy, ( these ppl tend to talk the loudest)

Read alot, learn and ask questions. Find a builder you can trust and work with them.

 

Man that is the best advice I have seen here in a long time. Do your homework and don't believe all the "hype" you see on the web. Talk with folks who have used a tuner you are interested in and then listen to the car if you can. How long has the tuner been around and can you see older jobs to get an idea of consistency. Get multiple quotes and have a plan before you start. Always keep drive-ability in mind. I have seen too many folks that went for all out power who can't keep the car running at idle. Consider many options for power increases not just the head/cam option. You will be very glad you did.
That being said, I would recommend MTI Racing in Atlanta for any and all your modification needs. Good Luck!

 

Hi AU N EGL,

I can't agree more, it is why my engine is making 455 RWTQ with a not extreme camshaft at all on soft lobes...and only 11.4 of Static Compression Ratio which makes the car more than safe on a 93 pump gas!!!

On the top of that my Piston to Valve Clearance is a lot more that any of the concurrent could produce without flycutting...

And going to a Meziere electric water pump didn't make any sense for a daily driven car...as well as any extra flowing noisy exhaust cat back making my neighbours nervous!!!

I am not planning to change anything inside the engine before the next 40 000 miles except the oil...it will be then time for a valve spring set!!!

Your Engine Builder will be the key, in my case I choosed mine because of his background designer, and he is also writting in some magazine as a specialized consultant about camshaft/valvetrain/head...and in this world of engine builder since a long time (will not give more details respect his "young" age)

Take the maximum info possible, a package can go wrong very quickly, make it right the first time will save you money and you will drive the car instead of having it repaired and stuck in the garage...

Have fun
Christian

 

I know lots of guys who did H/C packages only to blow up latter. I think these guys did not do their homework and just went for big numbers. Then expected the engine to last 20,000+ miles and blamed it on the builder. Come on . .. Builder is not at falt, the customer is for not doing their homework.

Big numbers can work very well, with frequent rebuilds.

I personlly know 10 guys who did H/C and had the engine blow. #7 a few times, Oiling issues, #8 a few times, HOT spots in the block and lack of cooling. Then Valves drops do to lifts above .585 without fly cutting. Yes I know lifts above .585 can work with out fly cutting the pistons, but personally I am not willing to take that chance.


I also know quite a few ppl with H/C and are very very happy. all of them had a lift less then .585 on the cam.


IMHO any head and cam package should include a bigger radiator, Accu-sump and oil cooler and big or bigger trans cooler.

I have been running a LS6 engine with PP LS6 heads, a small comp cam 224/225, .525/525 on 112+2 for 22,000 hard 3000 to red line track miles. Third set of springs, just to make sure.
Accu-sump and OIl cooler plus trans cooler. Still have the stock radiator but I clean it out before each track weekend.

I have a set of BIGGER PP LS6 heads, ( SWGT Lingfelter heads, 60.9 cc, with 2.1" intake valve and 1.6 exhaust) and am looking for a different cam, to put in. May wind up putting in the Grand Am cam 239/251 570/570 on 110 but not sure yet. The car will not be streetable with this conversion happens. IF I decide on that cam. Not 100% yet and I do expect to remove the heads and springs twice ( min) a year for inspections and adjustments to springs and valves

Cage & fire suppression first.

 

Cartek did 500+ with their 4x cam and ported 4x ls6 heads. Car is running 10.4s.

PS-no problems with the engine breaking and it has seen many, many days at the track.

 

Hi nickolbag,

How does this package drives in stop and go traffic with 100°F outside?

How is the noise level (stock TI Catback/nocutout)?

Stock water pump?

Any idea of the mileage?

Pump gas (93 I guess)?

How is it in a School Zone at 25mph?

Is that combo enjoyable on a long Highway trip?

Stock Drivetrain (Rear End)?

Those amazing ET (for a 346Ci NA) where done on stock suspension?

What kind of tires/rims?

Stock weight?

Thanks in advance for your answers.
Christian

 

Ok theres 2 cars here that I will refer to with the 4X package. One is a TA running 10.4s and one is a Z06 running 10.5s.

Stop and go traffic is no problem, even in heat. For noise its loud. With straight pipes and stingers both cars make their fair share of noise. Water pump and milage I'm unsure of, don't want to give you the wrong info. Pump gas, yes. 25 mph is good, rides well at lower speeds. As for long trips, thats a judgement call. Depends on how you feel about the stingers or straight pipes. Rear for the TA is not stock, Z06 w/ hardned output shafts. Suspension for Z06 stock, TA ovbiously has a long list. Yes the ET is great for the 346, stock bottom end too. Both are great drivers with a lot of track time. Both with skinnies up front. Slicks for the TA, ET Street for the Z06. Weight for the TA is I believe 3300, no weight reduction to the Z06 aside from remvoving passenger seat.

For the times they are running out of a HC stock bottom end 346 the cars behave very nicely on the road. They impressed me enough to go with a Cartek setup