dmracing

iTrader: (80)

What about the Performance Inductions carb intake by Cary?

LS6427

iTrader: (2)

Bad *** intake...but its too tall for the stock hood. If you don't mind cutting the hood, go for it. That sucker can deliver some airflow. Not as much as an ITB, but ALOT......

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dmracing

iTrader: (80)

Its going into a 93 Fox coupe with a 4 inch cowl. Looking to run some low 9,s on pump gas, motor alone.

LS6427

iTrader: (2)

Get Carys intake, you'll be a happy ***. And I think low 9's will be cake with say a 427ci, these PRC heads and Carys intake........ Assuming the car is set up right. You can probably run low 9's with a ported LS7 or FAST also. I don't think low 9's is gonna take you anything exotic. Just guessing, but I think 600-650 RWHP can get you low 9's. You can do that with regular plastics intakes.

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supermouse4

Those are some amazing numbers for flow. That car should fly with the new engine in it. Are you going to use EFI or carb?

Engine_HP

iTrader: (1)

looks good, waiting for some results.

kumar75150

subscribing

melsie68

iTrader: (8)

Just to make sure this is correct, the description on the TSP site says ***OUTRIGHT PER PAIR! and I am assuming that is directly referring to how these are priced on that web page. If that is correct, the pricing is phenomenal. In fact, I think it is too cheap and must be a typo. Performance Induction 6-bolt casting are only a $400 option!!! WOW!!!
If it is per head, then it is too expensive (as compared to other cylinder heads on the market).

Should be interesting to see how they perform.

Sales2@Texas-speed

iTrader: (5)

^^It is outright, and for the pair It's great that once you add the options for the spring kit, valves, etc onto it....you get into a double throw down cylinder head, for just a little more than the standard CNC'd GM head (and a nice chunk of extra power too)!

dmracing

iTrader: (80)

So if I hit qty 2 I would be buying two sets of heads 4 total?

kumar75150

Jason and Matt, if you guys want/need another test car for the heads, let me know. I've got a 500 cid ERL motor in my car with pretty much stock LS7 heads with some exhaust work. I can probably drive the car out to Lubbock for a couple days.

LS6427

iTrader: (2)

Call them to order. Just to get it all correct.

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Sales2@Texas-speed

iTrader: (5)

That's correct. Quantity of one gets you a pair. Quantity of 2 gets you TWO pair.

MPM IV

iTrader: (3)

I'd be very intrested to see what those heads would do for your motor.

Beaflag VonRathburg

iTrader: (176)

^ An intake only restricts air flowing through it, not stop it completely. An increase in head flow with something like a FAST or LS7 intake will not completely limit a head to the point where it will make no more power.

Do I agree with you that ITB intakes make more power? Yes, I do. Do I believe the Harrop is the best option? Absolutely not, and I've heard of a lot of design and installation flaws in regards to them.

melsie68

iTrader: (8)

Damn its getting pretty thick in here...

Great deal on the heads!!!

ATVracr

iTrader: (5)

Also depends on which sheetmetal intake your talking about, they are all not equal.
We are putting one on our car with two 4500 Throttle bodies... it might flow a little.

kumar75150

I asked for around 11.75:1 compression. Who knows if the engine builder combined with the shop got close to that number? Cam is a ~260 duration/~.700 lift hydraulic roller. I'll take a couple videos of it idling when I get home tonight.

I'm looking to pick up an additional ~30hp and slightly improve driveability. I'm hoping a few little tweaks can achieve that.

c5blkvette

The ITB intakes, whist good for track racing, are less than ideal for street cars. Yes, they make more power and can make a big cam idle smoother (due to dissipating the reversion), but they also require constant attention and a high degree of fiddling.

The reason you would choose ITBs over single or dual TBs would be the fact that you can have up to unlimited plenum volume, which increases the strength of your harmonic pulses and reduces airflow resistance. And due to the fact that you have the throttle plates close to the intake valves, the throttle response is excellent (sometimes to the point where the accelerator pedal is too responsive) - ideal for on/off type racing.

For a street car that needs to have an airbox that fits under a hood, the ITBs dont make as much sense. I have heard that the Harrop has a significant drop in power once the airboxes are fitted. A well designed intake with a single TB is probably the best option for 95% of applications. Then take your spare $5,000-10,000 and use it in other areas like brakes and suspension, which will make you faster on the track compared to the car with the ITBs.

Mr Monaro

I tryed the Harrop T/B on my 402 auto wasnt happy,went back to Fast 90 Happy days again thats my opinon.