Thunder header or TSUDO ?

[Rac3rX]

I'll have to go get a set of mounts then.

Here you go

http://www.rr-racing.com/engine-mounts.htm#Current Inventory

Rafi should take care of you. I Ordered them last week and they got here yesterday (My GF didnt give me my mail untill today because I didnt do the dishes (omg) Sall good the header isnt here yet.

 

[TheBryGuy]

Thanks man. Isn't that funny how much power women have? My girlfriend is the same way...

 

[nautical2086]

thanx for all you input guys, I will be ordering the tsudo tommrrow, I love the awr and know its better, I just don't want to pay 500 some dollars for it, if I found it for 300 or so, it'd be in my engine already. lol, Thanx guys.

 

[nautical2086]

so which would give the better power? AWR or tsudo? the awr is 4-2-1 which i've always been read to believe is the best, while the tsudo is 4-1 which I've told is not the best. I've been reading in these threads that the tsudo supposilly gives more power than the awr.

 

[Laser03pro]

But tell me this guys what header has the biggest diameter pipe does anyone know?? Are all them the same size cause dont they use the stock donut?
I know the thunder is 2 1/8". I want the header that has the biggest diameter pipe cause the mam midpipe is 2.5".

 

[Laser03pro]

Someone with the Tsudo can you measure the pipe diameter inner diameter that is if you have not installed it yet.

 

[Rac3rX]

so which would give the better power? AWR or tsudo? the awr is 4-2-1 which i've always been read to believe is the best, while the tsudo is 4-1 which I've told is not the best. I've been reading in these threads that the tsudo supposilly gives more power than the awr.

4-1 headers provide better flow. Because the outgoing exhaust gasses don't have to go thru the transition of flowing out of 4 pipes, to 2 pipes, to 1 pipe.

In most states (and Provinces) 4-1 headers are illegal for street use. Alot of header manufacturers only make 4-2-1 headers because of this.

4-2-1 headers are better for trucks seeking better low - mid range torque, where as 4-1 headers are for better power in the mid to high rpm range (Arround 4000rpm and up) So for seeking more power and more "Pull" from our cars, a 4-1 is the way to go (But usually illegal for street use, if you care about that)

As far as AWR 4-2-1 Vs OBX/Tsudo 4-1, in my opinion the OBX/Tsudo, should produce MORE power Mid to high then the AWR, and in the end be better for our car.

It would be interesting to Dyno a car with the AWR then replace them with OBX or Tsudo headers and Dyno her again to compare, as far as I know it hasnt been done yet.

 

[Laser03pro]

You wernt answering my question with that was you I just want to know the pipe diameter.

 

[Rac3rX]

You wernt answering my question with that was you I just want to know the pipe diameter.

Naw, you replyed as I was fixing the quote.

As for the Diameters, I should get mine next week so Ill measure them.

BUT I couldnt see a diference because they are bolt on replacements.

 

[Laser03pro]

Yeh thats what I was thinkin also all them prob about the same size just flow better then stock. All the headers I seen even use the stock donut.

 

[Rac3rX]

Yeh thats what I was thinkin also all them prob about the same size just flow better then stock. All the headers I seen even use the stock donut.

Yup yup, equal lenth pipes & No Cat makes for Much better Flow

I would assume they are the same diameter as increasing them (While using stock doughnuts & And the exit into stock piping.

And in the end The differences in price are :bs:

 

[Laser03pro]

I just measured the ID of the MAM midpip[e and the RB catback. MAM midpipe was 2 3/8" and the RB was 2" right where it bolted up to the cat then immediately goes up to 2 2/8". I dont understand when exhuast companys do this yeh its nice to bolt up to the stock midpipe but it defeats the purpose of having bigger piping.

 

[Rac3rX]

I just measured the ID of the MAM midpip[e and the RB catback. MAM midpipe was 2 3/8" and the RB was 2" right where it bolted up to the cat then immediately goes up to 2 2/8". I dont understand when exhuast companys do this yeh its nice to bolt up to the stock midpipe but it defeats the purpose of having bigger piping.

WTF? Why would they do that?

It TOTTALLY defeats the purpose. No matter how big they increase it too it will only flow at 2".

The only thing that comes to mind is controlled backpressure, but thats a geuss.

 

[Laser03pro]

Yeh I had an exhaust before that went from 2.5" to 3" I thought that was really stupid also it was for a v8 car.

 

[nautical2086]

i'd personally like the power down low anyway, either way both prob put out the same sort of numbers.

 

[Laser03pro]

With just a header and a axel back with the stock converter replaced with a high flow might flow just as good or better then the full setup just cause all the pipes are the same size. If I had a turbo car I would get a big down pipe then just get the rest custom made most likey.

 

[Rac3rX]

i'd personally like the power down low anyway, either way both prob put out the same sort of numbers.

Why?

You shift at Redline for maximum acceleration, this makes your next gear catch arround 4000rpm's to 4500rpms, Maximixing the Use of the 4-1 header design, as they give benifits between 4000rpm and up. You got to love Gears.

4-2-1 designs will keep the gains Low in the Rpms, this is great if you want to pull a trailer or something, but not as benificial as having the power higher in the rpm,s.

Hypethetically if there is a total of 10ft.lb of torque gains from both designs, the only diference being the rpm's where the increase is applyed, the SAME 10ft.lb of gains will generat MORE hp if its higher up in the rpm's as a FACT. HP is power put to work.

In order for a 4-2-1 design to produce More HP than the 4-1 design it would have to generate a Much larger torque increase then the 4-1 design to make up for the low rpm's where its applyed, and I dont see that hapening with a bolt on replacements.

 

[Laser03pro]

I agree on our cars I like most the power up top you dont want the car to fall on its face trying to get on the highway lol.

 

[Laser03pro]

I dont think he was talking about the design of the header tho just the size of the pipe with the smaller pipe you will have more torque but less top end.

 

[Rac3rX]

I dont think he was talking about the design of the header tho just the size of the pipe with the smaller pipe you will have more torque but less top end.

I thought he was because he was talking earlier about 4-2-1 designs being Better then 4-1 designs.

I could be wrong