Guys I'm curious what mods for N/A application would net me 500RW HP/TQ. I'm guessing most stock 98 GTS models are some where around 410-415RWHP and 450 RWTQ.?.?
You could do , filters , smooth tubes , headers and a full exhaust system w/o cats - tune it on a dyno with a VEC2 and you should be pretty close to where you want to be - without going into the motor or spending too much...
I have both headers(used Henessey's) and Mopar roller rockers(new T&D's) for sale. Should get you started on your quest, selling for $2200 shipped! Hell, HMS headers cost that much alone
You will need full exhaust, roller rockers and ported heads. Depending on what type of cam you choose, you will be able to put out low to mid 500's rwhp on a dyno.
Guys I'm curious what mods for N/A application would net me 500RW HP/TQ. I'm guessing most stock 98 GTS models are some where around 410-415RWHP and 450 RWTQ.?.?
Thanks for any suggestions.-Fred
...cheapest way to go for what you want while being N/A fabulous; Smooth tubes, filters, headers, high flow cats, exhaust, 1.7 RR's, Sean Roe reworked heads, VEC 2 dyno tuned.....(you don't really need a cam upgrade as the hot 708 factory cam your model year comes with is one of the best designs made for the "street" car)
...With the mentioned mods you should make between a low of 505RWHP to a high of 540RWHP. My fearless prediction, you'll see 520RWHP. I think anyone on here will agree with these statements/figures....
--- Kevin D
Roe heads = $2,600
1.7 RR's = $1,000
Exhaust = $1,200
Smoot tubes & filters = $300
Headers = $1,800
High Flow cats = $400
VEC 2 = $1,000
----------------------------
Total = $8,300 in parts (Figure another $1,200 in labor for everything)
Last edited by Kevin D : July 6th, 2006 at 04:54 PM.
...cheapest way to go for what you want while being N/A fabulous; Smooth tubes, filters, headers, high flow cats, exhaust, 1.7 RR's, Sean Roe reworked heads, VEC 2 dyno tuned.....you don't really need a cam upgrade as the hot 708 cam your model year comes with is one of the hottest/best designs made for the car. With the mentioned mods you should make between a low of 505RWHP to a high of 540RWHP. My fearless prediction, you'll see 520RWHP. I think anyone on here will agree with these statements/figures....
--- Kevin D
I think it would be hard to hit 520 with a stock cam and ROE head work. Much easier to just slap on a ROE blower and make an easy 550.
I think it would be hard to hit 520 with a stock cam and ROE head work. Much easier to just slap on a ROE blower and make an easy 550.
Considering many are a cunt hair away from 500RWHP even with all the mods I listed MINUS head work....with good tuning on the VEC 2 I would say 520 is a very safe estimate. Mind you, we're not talking about a 2000+ creampuff here...his car has the hotter 708 cam. Head work will make a significant difference on the cam HIS model year cam with. (most will pick up 40-50RWHP gains over the other bolt-ons with Sean Roe's heads. (i.e. with I/H/E + RR's + VEC 2 = 480RWHP tuned without heads...520RWHP with*)
...cheapest way to go for what you want while being N/A fabulous; Smooth tubes, filters, headers, high flow cats, exhaust, 1.7 RR's, Sean Roe reworked heads, VEC 2 dyno tuned.....(you don't really need a cam upgrade as the hot 708 factory cam your model year comes with is one of the best designs made for the "street" car)
...With the mentioned mods you should make between a low of 505RWHP to a high of 540RWHP. My fearless prediction, you'll see 520RWHP. I think anyone on here will agree with these statements/figures....
--- Kevin D
Roe heads = $2,600
1.7 RR's = $1,000
Exhaust = $1,200
Smoot tubes & filters = $300
Headers = $1,800
High Flow cats = $400
VEC 2 = $1,000
----------------------------
Total = $8,300 in parts (Figure another $1,200 in labor for everything)
Kevin, would the stock injector's be able to hang with the number's you quoted? Looks like 10K will do the trick staying N/A. I really would like to stay away from super charging and N2o. I appreciate the responses.-Fred
I'd stick with ViperJohn, Heffner did his NA package and he is over 500 at the wheels. He's basically telling you to follow a tried and true method that already works.
Kevin, would the stock injector's be able to hang with the number's you quoted? Looks like 10K will do the trick staying N/A. I really would like to stay away from super charging and N2o. I appreciate the responses.-Fred
The stock fuel system, and cam (on your 98') need no modifications to hit that 520RWHP number mentioned...welcome to the world of Viper V10, lol.
Stock injectors are good for about 480rwhp, if you lean it out a bit you can get just over 500.
hmmm I have over 120 more whp and am running stock injectors no problem and was told around 600whp is about as far as they go. I am also riched out for a large shot of nitrous
However on my car we figured it out with AEM when we did the base map that every ems comes with. My car making tad over 450rwhp was just over 95% duty cycle on the injectors.
AEM then verified that on the other vipers they were testing the unit on.
Now if you pump up the fuel pressure I am sure more can be achieved but I am not sure just how much more.
to give you an idea, my 97 gts made 450rwhp and 490rwtq with only, B&B headers, removal of cats, borla mufflers, full 3" piping from the collectors back.
However on my car we figured it out with AEM when we did the base map that every ems comes with. My car making tad over 450rwhp was just over 95% duty cycle on the injectors.
AEM then verified that on the other vipers they were testing the unit on.
Now if you pump up the fuel pressure I am sure more can be achieved but I am not sure just how much more.
Based on that I wonder how many guys are pushing 480-520RW limited by stock injector size.. Some guys might benefit from larger injectors and not know it.
There are alot of vipers running dangerously lean out there, my car was tuned for mid to low 12's on afr. AEM tried going a bit leaner but there was no power to be made by having it that way so we richened it up to be on the safe side.
Those that think well my car made more power than that without any injector or fuel pump mods or even the benefit of any sort of tuning, just remember all dyno jets are not made equal. Just because your car made 450 rwhp does not mean you will make that on the dyno AEM used. Most likely you will find that their calibration and testing facilities are far more stringent than your average dyno place. These figures were also backed up by AEM mustang dyno, which by contrary belief shows almost identical numbers when calibrated properly.
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