...so does this actually create any useable/driveable HP? Will one actually notice a difference when driving after this mod to a STOCK 93 RX-7?

I did a search and couldn't find an answer to this one.

Thanks
dD

 

I love Pettit to death. I think they are one of the best rotary shops still around. However, that kit IMO is not going to give you an extra 60 HP. It will give you more power, but probably not to the tune of quite that much.

If you like their catback and intake, it's a good kit. However, there are a lot of catbacks and intakes to choose from these days. I would look around and see what you like before deciding on a kit like Pettit's.

 

Thanks. That's what I suspected.

I've been talking with Sean at ASpec about a complete GT35R mod to the car and that seems to be exactly what I want and "need"

 

Yeah, I think you might see 15 hp from the catback, and maybe another 15 from the intake... then 10 at the outside from the pully. 30-50 hp tops. I assume their math meansd 20 each for the catback/intake and 10 from the pully and that's awfully optimistic.

 

If that's the type of car you are looking to build, you might check out Gotham Racing:

http://www.gothamracing.com/Script/

(they are currently moving so responses might be a little delayed)

They built/tuned this car:

https://www.rx7club.com/single-turbo-rx-7s-23/t62-1-dyno-sheet-done-399435/

I wouldn't call it a "power house", but it's flat out "useable" power with a fantastic power curve. They have/sell larger turbos, but IMO something like that is more useable.

 

Well, if you don't even have a catback yet, a 35R might be a bit premature! If your starting from zero mods, you're going to need alot more stuff to make use of that turbo kit. Computer, fuel pump and injectors at minimum, boost control, IC, catback, etc.

 

Try the simple mods first unless your a tried and true car nut that likes heavy modifications.

Simple stuff like intake, downpipe, catback, bigger IC, and a upgraded ECU.

While running the stock cat and stock boost levels it'll buy you about 50-60hp at the crank. Bump the boost up another 2psi and you'll have another 20hp. Remove the main cat with the above mods and you'll have another 30hp or so.

These are rough numbers but very realistic, an extra 100hp isn't to shabby and the car is still basically stock with a few bolt-ons.

Of course there are other mods you'd need to do to support 100hp more. Better clutch, tires, brake pads, etc.

 

Yah I hear you all. The above GT35R mod i was speaking about included all the fuel, cat, exhaust etc mods -- it was a complete job I was looking for.

The single turbo option is just that, but all the other upgrades are planned this fall. This site is a great resource.

dD

 

As for "feeling" the power difference you will for sure. Like everyone else said you can keep an eye on the parts section here and save alot of$$. As for the gt35 turbo your car will be a totally different animal and big $$.

 

i'm using a 35r with the stock catback

 

I bought that stage 1 TKT kit back in the late 90's. It just came with 2 K&N filters, a Power Pulley and Borla catback. I am STILL using the Borla and Pulley, but got larger filters so I don't have to clean them as much Once you have the kit on you will notice a world of difference. EVEN the Power Pulley as I installed it separatly.

 

maybe i should mention the 3" boost-actuated cutout, though

 

First thing,you need to decide how much power you want.I installed a dp, cb,greddy smic,m2 ecu,hiflow cat apexi intake and hks twinpower,all puchased on this forum used except for hiflo cat(magnaflow). all for under 2K. The car is much faster now. stock, it could not have beaten my stock 98 c5 .Now it is much faster than the vette.

 

You could do a LOT worse than dealing with Pettit and installing their 60HP kit.

If you don't have any mods then you need to concentrate on the basics to protect your car.

 

Just for reference but under drive pullies do NOT add HP, like the lightened flywheel it free's up HP the car already has, doesn't give you more like other mods (intake, exhaust, turbos) Just trying to clear up a misconception. Jack

 

Yep, especially for $1200...

 

Actually, Jason of the RX7Store did dyno test a set of pullies which did yield more power. His case yielded around 15rwhp however it was on a very modified car.