Need help with choosing headers
#1303432
09/13/12 07:25 PM
09/13/12 07:25 PM
|
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
TomsCharger70
OP
enthusiast
|
OP
enthusiast
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
|
 New engine, a 493cid (440 block) with Indy EZ "Little Easy" 295 CNC heads. Cam lift .700. Engine will see 7000+ Rpm. Engine is built for Nitrous Oxide, will be using a 200Hp shot of Nitrous. Which headers to buy??? The 2" TTi440-200 OR 2 1/8" Step 400IB-218 headers??? Thanks  /Tom
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303434
09/13/12 10:13 PM
09/13/12 10:13 PM
|
Joined: Mar 2010
Posts: 632
MD-USA
Dodgeguy101
mopar
|
mopar
Joined: Mar 2010
Posts: 632
MD-USA
|
Quote:
New engine, a 493cid (440 block) with Indy EZ "Little Easy" 295 CNC heads. Cam lift .700. Engine will see 7000+ Rpm. Engine is built for Nitrous Oxide, will be using a 200Hp shot of Nitrous.
Which headers to buy???
The 2" TTi440-200 OR 2 1/8" Step 400IB-218 headers???
Thanks
/Tom
I hope you aren't using a stock block???
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303435
09/14/12 02:30 AM
09/14/12 02:30 AM
|
Joined: Aug 2003
Posts: 43,176
Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,176
Bend,OR USA
|
Mr P ran his header program for me for my 526 C.I. motor, it called for 2.201 diameter on the frist step primary pipe, 15 inches long and 2.326 diameter on the second step 15 inches long into a 4.0 inch collector 16.0 long  Where going to use a 2 1/8 first step with a 2.250 second step with the 4.0 inch collectors  IHTHs
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Need help with choosing headers
[Re: Cab_Burge]
#1303436
09/14/12 04:08 AM
09/14/12 04:08 AM
|
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
TomsCharger70
OP
enthusiast
|
OP
enthusiast
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
|
Quote:
I hope you aren't using a stock block???
-Yes! Using aluminum main caps and light weight rotating parts.. and if it blows, it blows... then again I do think that something else in the engine will let go way before there is any problems with the block itself, though I do plan on upgrading to an aftermarket block later on.. just to give everyone out there a peace of mind 
Did a little search about "Step" headers, seems that there is no real proof of advantage using them... So Im gonna go with the 2" headers.. If I loose a few Hp because of that I will not be sad about it...
Thanks
/Tom
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303437
09/14/12 08:19 AM
09/14/12 08:19 AM
|
Joined: May 2004
Posts: 952
Stockholm, Sweden
MrSixpack
super stock
|
super stock
Joined: May 2004
Posts: 952
Stockholm, Sweden
|
Tom my friend, step headers work. And it's not easy to figure it out without a ton of knowledge or a good header program. I choose headers from Performance Welding as they have the know how and make the best headers. If you are going for all out performance a good set of headers is a must. Just my
1970 Super Stock Challenger ex. Paul Rossi
1968 Dodge Dart GT 340
1968 Dodge Charger /6 3 speed manual
1966 Chrysler 300 Loaded
1968 Dodge Charger R/T 440
1968 Mini Cooper
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303438
09/14/12 01:19 PM
09/14/12 01:19 PM
|
Joined: Mar 2010
Posts: 632
MD-USA
Dodgeguy101
mopar
|
mopar
Joined: Mar 2010
Posts: 632
MD-USA
|
Quote:
Quote:
I hope you aren't using a stock block???
-Yes! Using aluminum main caps and light weight rotating parts.. and if it blows, it blows... then again I do think that something else in the engine will let go way before there is any problems with the block itself, though I do plan on upgrading to an aftermarket block later on.. just to give everyone out there a peace of mind
Did a little search about "Step" headers, seems that there is no real proof of advantage using them... So Im gonna go with the 2" headers.. If I loose a few Hp because of that I will not be sad about it...
Thanks
/Tom
I hope it holds together for you, you just hear so many horro stoires. Sounds like it will get the job done.
|
|
|
Re: Need help with choosing headers
[Re: Cab_Burge]
#1303440
09/14/12 08:53 PM
09/14/12 08:53 PM
|
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
TomsCharger70
OP
enthusiast
|
OP
enthusiast
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
|
Quote:
Tom my friend, step headers work.
And it's not easy to figure it out without a ton of knowledge or a good header program.
I choose headers from Performance Welding as they have the know how and make the best headers.
If you are going for all out performance a good set of headers is a must.
Just my
I did not say you couldnt make more power using Step headers, guess many things plays part. My opinion about them, from what I read and little knowledge I have about them, is that for the couple of times a summer racer its just not worth the hassle and money to go with custom made headers when you have such good headers from TTi. I also do NOT believe that the horsepower gain is that impressive, if you make 20 Hp more with step headers, well I do not think youll notice it much, well perhaps if you race a Pro Stocker...
Quote:
All the NHRA stock and SS racers as well as some Comp Elininator racers say step headers are worth a little bit of power, ET and MPH on there race cars   I seem to remeber someone dyno testing step versus straigh pprimary pipes of the same size as the first step and the steps worked better. The first motor I built and dyno tested made a lot more HP and torque going from a set of Hooker A body fenderwell headers with 1 7/8 primaryys and 3.5 inch collectors to a set of dyno headers thet dyno owner and operator made while my motor was on his dyno, he made them with 2 1/4 primary pipes and 4.0 collectors  That motor was a 426 Max Wedge pump gas street motor with 9.5 to 1 compression on CA pump gas back in 1991 or 1992, it was for one of Boyd Coddington cars. That motor made more torque and HP all the way from 3000 RPM up to 6500 RPM when we quit pulling it there as it made peak HP at 5900 to 6100 RPM, depending on the changes we made to the tune up.
Again, how much more horsepower did that engine make with the larger size Step headers?? IF it made about 20 more, well -Sorry, Im not impressed... If you say it made more than lets say 50Hp more, then Ill call and say BS! If it made more than 50, damn that engine was denied breathing.. But I still dont buy it that it made more power just because the headers were step headers, if you had used a set of larger diameter headers my guess is that the power gains would have been about the same..
/Tom
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303441
09/14/12 09:17 PM
09/14/12 09:17 PM
|
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
|
I think the Wallace Calculators has a header sizing program on it.
I'm using a 2" header with a 4" collector on my small block. When I ran the program it came out real close to what I already have on there. I think you'd be better off with a larger tube.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: Need help with choosing headers
[Re: Guitar Jones]
#1303442
09/14/12 09:52 PM
09/14/12 09:52 PM
|
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
TomsCharger70
OP
enthusiast
|
OP
enthusiast
Joined: Sep 2007
Posts: 258
Stockholm, Sweden
|
Quote:
I think the Wallace Calculators has a header sizing program on it.
I'm using a 2" header with a 4" collector on my small block. When I ran the program it came out real close to what I already have on there. I think you'd be better off with a larger tube.
-Header tube or collector???
|
|
|
Re: Need help with choosing headers
[Re: TomsCharger70]
#1303443
09/15/12 08:35 AM
09/15/12 08:35 AM
|
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
|
Quote:
Quote:
I think the Wallace Calculators has a header sizing program on it.
I'm using a 2" header with a 4" collector on my small block. When I ran the program it came out real close to what I already have on there. I think you'd be better off with a larger tube.
-Header tube or collector???
Tube size. Is this going in a B body? I think Hooker makes a super competition 2 1/8 primary tube size with a 4" slip fit collector.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
|
|
