Generation III External Engine - ok down to one set of header but dont know which one
01-31-2005, 11:55 PM
Ok i know i am for sure going to order a set of QTP's. I have the other screen up just waiting to place the order. Obviously i am not going to pass emmissions, but i dont want to make it too obvious to the inspector that the headers are illegal. What should i do, with a head/cam car i hear the HVMC's have been known to pick up an additional 15-20 horses (found that in search, could be wrong) also eventually down the line i am thinking of nitrous and i hear the 1 7/8's are very good for nitrous cars. THe only thing that turns me away from doing the 1 7/8's is that i hear it is to much for a normal cube car, and im not going to be on the spray all day, so is it really worth going 1 7/8? Thanks
02-01-2005, 12:32 AM
I'm in the same boat man, I'm thinking about ordering headers sometime soon (Kooks or QTP) but I don't know what to get. People claim that 1 7/8 are making power even over the 1 3/4, but I haven't seen a graph yet. I'm not going to do nitrous though, just a "healthy" heads/cam setup. If you are going to do nitrous, I would definately go 1 7/8, but this is JMO and I have NO EXPERIENCE with these headers.
The best advice I can give you though is to check the dyno results for a thread about 1 3/4 vs. 1 7/8 soon to come, and check the Sponsors GP section, because QTP is about to run a special and will save you some money if you wait just a little longer.
02-01-2005, 12:45 AM
Shit man thanks for the heads up on the special! Still looking for some answers to my question, i got one looking for some more though. Thanks
02-01-2005, 04:53 AM
1 7/8 may make more max power but not in the RPM band where most of use the car. You want velocity not volume, and 1 3/4 are better for that. If you have a big cube motor, go with 1 7/8 otherwise 1 3/4 are preferred.
02-01-2005, 07:34 AM
i would go with the 1 3/4 HVM headers i have them.. and my car moves with them ;)
02-02-2005, 02:16 AM
i would go with the 1 3/4 HVM headers i have them..Me too! :D
02-02-2005, 11:56 AM
yeah better go with the 1 3/4
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