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Forum namePerformance/Engine
Topic subjectRE: Demon's 200+whp build attempt
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=137456&mesg_id=137462
137462, RE: Demon's 200+whp build attempt
Posted by bullettdsm, Dec-31-69 06:00 PM
Not for nothing, but this is one of the reasons that I shy away from answering pm's with this kind of request. I spend the time to give you a reply, point for point and you ask the same question on the forum (that part I have no problem with). But I ask you to simply take the time to cut and paste what I spent time doing and you can't bother to take the few seconds to do that.

No this isn't an arrogant/I'm so special kind of attitude. Its just I DO spend a bit of time and thought generating these responses and the simple courtesy of pasting it up here is just blown off.

Well good luck with your build and for those who are reading this thread (or searching later on it) here's the pm and response (my typo's included);

Originally posted by 97 Demon
would you be able to help guide me towards my goal of breaking 200WHP on an all-motor build. my dream would be to best your record but am willing to settle for at least 200.

if there is anything I need please feel free to tell me, or if there is anything on my list that seems out of place please tell me why it wouldn't work.

1.) 60+mm TB - (I know a 60 mm is required... can i run a 62mm or 65mm and keep streetability?
2.) fuel rail - (?)
3.) 390cc injectors - (1G gsx auto)
4.) 12.5:1 compression pistons - (JE or Wiesco)
5.) 1mm oversized valves - (?)
6.) major port work
7.) custom intake ( trying to keep that hush-hush)
8.) 2.5" exhaust - (custom or is there a good kit?)
9.) crank scraper - already have
10.) a/c delete - already done
11.) p/s delete - already done
12.) equal length headers - (megan racing 4-1)already have
13.) 3-core radiator - (Mishumoto)
14.) 264/264 cams - (crower 2's?)
15.) Intake manifold - (?)
16.) ?


also i am planning on doing a truck relocation for the battery and doing a wire tuck.

Is aiming for a goal weight of 2,000lbs possible?

You're missing the most important part; Megasquirt. You cannot make 200whp NA with the stock ECU. Won't happen. Believe me.

I am currently running a 12.5 comp motor with Crower 2's, a 60mm TB, ported head, an LTH, and etc.,all on the stock ecu. I'm not even close to 200whp (I may dyno it on the stock ECU).

I will be tuning that set-up soon and I will probably come shy of the 20whp mark.

I would also say (judging by what others have done) that you do need to up your comp.

In addition, I'm getting a strong suspicion that the LTH is also needed. That's not available anywhere that I know of. You would have to make that.

OK, your list;
1 Bigger than a 60mm would not be nice on the street.

2 Stock fuel rail is all you need. Hell, I put fittings on the stock rail when I did my 570whp turbo version.

3 The stock injectors do start running out around 20whp. If you get 390's you will want a way to adjust them.

4 See previous note on comp and stock ECU

5 1mm not necessary. I've been over on a few set-ups with stock valves

6 yes portwork, BUT get it done from someone who has the experience in 420a/Neon flow. I would recommend Eddie Fierro. AMM does great work, but his timing can be questionable. If you go with Eddie, mention my name for a reference to what you are doing.

7. 6 cutom intake (if done properly) would be nice.

8 2.5 exhaust will work

9 Crank scraper not necessary but slightly helpful with the upper rpm's

10, 11 helps

12 Again see notes on the LTH. I don't believe the Megan is an equal length anyway. If it does measure out to be, it was probably accidental on there part, lol.

13 Radiator won't really matter for power

14 264/264 is a 4g63 denotation. Forget the 264 and the 272 and the 282 etc. denotation. Doesn't jibe with our cars. The Crower 2's have made 200whp. The crower 3's would be easier, but less streetability.

15 I covered the intake manifold under the intake. I thought you were talking about it previous. The intake itself will help you very little (provided it is large enough to flow in the upper rpm's. I tested out the AEM one time and my 3" ram air beat it out handily in the upper rpm's. The AEM just choked off the air). An intake manifold is more what you want.

Of all those points, MS and the correct portwork (not just somebody with a flow bench) are probably the most important. While the other points are important, those two would be a starting point.

MB
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