[MoparMan]

I've got smooth tubes, K&Ns and the Mopar exhaust on the car. What can I add next to improve performance without dropping a few grand, adding nitrous or a blower?

I've been kicking around throttle bodies, but I hear that there's not much gain and you lose some bottom end. I'm also thinking about roller rockers but I have yet to see a before/after dyno run for these. I guess there's also the Mopar PCM or a reflash of mine. Any opinions welcomed...

 

[City]

Vec 1 or 2.

 

[Buckeye Viper]

Roller Rockers - ~$1,400
Pushrods - $100-200
Port & Polish - ~$2,500+
Used Vec1 = ~$200
Vec2 = $1,000
PCM Reprogram - Call WestCoastViper
AEM
Headers/Cats/No Cats? Not sure if you only did catback.


Also, don't forget wheels/brakes/suspension.

Nice looking car.

 

[Anthony - 98 GTS]

3.45 or 3.55 gears.

 

[MoparMan]

What kind of gains canbe expected from roller rockers/1.7 ratio? How about Vec1 or Vec2?

 

[City]

What kind of gains canbe expected from roller rockers/1.7 ratio? How about Vec1 or Vec2?

Someone else will comment on the rockers, but I'd expect you to go with a used VEC1 which is fairly inexpensive ($200-$300). Depending on how naturally out of tune your engine is, you would typically gain anywhere from 10 to 30 or 40 HP. I've seen a 30 to 35 HP gain pretty often.

 

[99RT10&GTS]

Just for the record, I have a set of Mopar 1.7 RR in the classifieds for a LOT less than $1400. http://www.viperalley.com/classifieds/showproduct.php?product=236&sort=2&cat=5&page=1

Also headers:
http://www.viperalley.com/classifieds/showproduct.php?product=220&sort=2&cat=5&page=1

 

[vipergts2000]

Just for the record, I have a set of Mopar 1.7 RR in the classifieds for a LOT less than $1400. http://www.viperalley.com/classifieds/showproduct.php?product=236&sort=2&cat=5&page=1

Also headers:
http://www.viperalley.com/classifieds/showproduct.php?product=220&sort=2&cat=5&page=1

Not to bust your balls but they are selling for 595.00 brand new on E bay...Might want to lower your price??????

 

[95Viper]

Not a performance upgrade but keeps your Viper from being roasted. www.hipoengineering.com and now sold through Roe Racing.

 

[MoparMan]

Sounds like I need to do more research on the VEC1 or VEC2. I assume you dial these in with a laptop and some dyno time, right?

 

[BigCarrot]

Yeah, a VEC is a pretty good, cheap, upgrade.

 

[99RT10&GTS]

Just for the record, I have a set of Mopar 1.7 RR in the classifieds for a LOT less than $1400. http://www.viperalley.com/classifieds/showproduct.php?product=236&sort=2&cat=5&page=1

Also headers:
http://www.viperalley.com/classifieds/showproduct.php?product=220&sort=2&cat=5&page=1

Not to bust your balls but they are selling for 595.00 brand new on E bay...Might want to lower your price??????

I would consider lowering a little, but not THAT much. That is a plain steal.

 

[Lucky]

Just for the record, I have a set of Mopar 1.7 RR in the classifieds for a LOT less than $1400. http://www.viperalley.com/classifieds/showproduct.php?product=236&sort=2&cat=5&page=1

Also headers:
http://www.viperalley.com/classifieds/showproduct.php?product=220&sort=2&cat=5&page=1

Not to bust your balls but they are selling for 595.00 brand new on E bay...Might want to lower your price??????

I would consider lowering a little, but not THAT much. That is a plain steal.

The ones on Ebay are gone. Crower.com also sells them for 700 I think.

 

[Custom Builder]

Lose weight.

 

[WV98GTS]

Crower sucks compared to the Mopar/T&D's.

 

[Tanked]

The cheapest way to build is to buy used/never been used, parts. I found a set of 1.7's for $600. Also a full exhust system(headers,cats ect) for $2000.

Just keep an eye out. Heck, I was kicking arould the idea of buying one of the race viper that where forsale, take off everything I could, return the race viper to stock then sell it....but...I just don't have to cash to do it.

 

[Tie]

You should get a "Vipair" I heard would add 50hp because it uses the super cool air in front of your engine. And less cost than anything mentioned so far!

/images/graemlins/laughing.gif

 

[RockStar]

3.45 or 3.55 gears.

Yeah. What he said.

 

[MoparMan]

You should get a "Vipair" I heard would add 50hp because it uses the super cool air in front of your engine. And less cost than anything mentioned so far!

/images/graemlins/laughing.gif

um...yeah...right...

 

[Snakester]

The VEC1 and VEC2 help smooth out the power delivery. It's mild improvement, but notable, and there is no downside. I don't know if the new VEC2 is computer programmable, but the VEC-1 is just a black box that has two dials and a meter gauge for tuning the car's power.

Also from Roe Racing are their high flow cats for around $290 a pair.
For those of us who have smog testing and can't just cut out the cats entirely.
The high flow cats are a nice choice gaining some power, and more importantly cutting the side sill temps almost in half! /images/graemlins/toothy