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Hex

Yeah didn't catch the "I'd".

I second the SOHC manifold from ASP.

Hex

:dunno: How many different engine designs are we discussing here? Correct. The above comment was out of context. Well, this seems like a pretty broad statement to me.......... ..and a well-designed engine with .2L more displacement trumps an equally well-designed engine. Some things never change, t...

Hex

Tubular SRT manifold for a daytona turbo? Ouch. Should have just used an SRT turbofold and welded a SOHC flange on that. Those things are dirt cheap anymore and will make more power than the daytona turbo.

Hex

..and a well-designed engine with .2L more displacement trumps an equally well-designed engine. Some things never change, to include principles of basic physics. Don't argue physics with an engineer. Three ways of increasing displacement. Bore, Stroke, and Cylinder count. Increasing bore has its do...

Hex

Crower doesnt measure their cams the same way that crane does. You cannot do an apples to apples comparison between them using normal spec numbers. I did a pretty large amount of research on this a few years ago and posted it here on the forums somewhere.

Hex

As a guy that has built and raced many many engines over the last few years, the 'no replacement for displacement' moniker is going the way of the dodo. A well designed setup trumps displacement any day, especially a high effort .2L gain.

Hex

The input doesn't match the output. If a consider effort and gamble for such a small torque increase and large margin for error. Darrell Cox used to offer large bore 2.4 blocks to go with his stroker kit for 2.8L total, but the block had to be sleeved because the cylinder walls were too weak for any...

Hex

Its an 8.3% increase in displacement and thins out the cylinder walls enough to be a concern in high power apps.

You can make a lot more than an 8% increase for about the same price with a basic nitrous kit. Nobody has put the effort into it because its not worth the effort.

Hex

Injectors don't stop flowing above 100% DC. You can still increase the amount of fuel sprayed above 100%. Stop worrying so much about 90%. I've ran 120% on E85. BTW, walbro sells a 400LPH pump that you can get for about 120 bucks. OEM reliable. Also, AEM sells a flex-fuel pump that works with everyt...

Hex

I wouldn't do it. The water will eventually pool up in the intercooler. This leads to flow loss and under certain circumstances, possible hydro lock. I don't think the benefits are worth it.

Hex

Mine:

http://www.ebay.com/itm/111008602801?ss ... 1436.l2648

Plain Jane. Cheap and reliable. Meth comes on when boost hits 8 PSI and stays on. No controllers to worry about, no programming, nothing. My cars meth dealer gets paid in boost.

Hex

Upgrade the walbro 255 to a larger walbro 400 for an extra 30 bucks and run at least 58 psi base pressure.

Those injectors will handle plenty then.

Hex

First and foremost, a gas station nearby that sells the stuff, unless you plan on brewing your own.

Hex

Where are you located? An SRT4 swap is a win/win.

Hex

I'm pretty sure I have a tube somewhere. Bought it for the bedplate on a 2.4 and never used it. I'll dig through the garage tomorrow.

Hex

I dont know about that manifold looks like a terrible design Manifold is a copy of a proven design. Not the best, but it'll work. Looks a lot like my old AGP manifold. Surprisingly, the LS guys that are a LOT less budget minded, use eBay turbos. Cxracing and vsracing seem to be their two favorites....

Hex

What about the obx srt4 turbo manifold? They're cheap. I'm not sure on fitment but with a custom downpipe and dump tube it can be made to work.

Hex

Those cams are pretty big for a boost setup. I'd go with something smaller if you can't get the LSA high enough to bring back up the power.

chinese 420a turbo manifolds are pretty cheap on ebay. Might have firewall/alternator clearing issues, but they're a possibility.

Hex

what valve springs. flat graph makes me think weak springs with restrictive exhaust manifold.

Hex

24 lb injectors and 58 PSI regulator.

Hex

location?

Hex

Below 200, get a 7850. I picked up one for 185 and love it. The only game I've ever had a problem on way bf3 on ultra settings, it was dipping down around 24 fps. Then i learned that the AA and AF scale with resolution and that having them at 16x was pointless at 1080p since 4x was the Max at that r...

Hex

Looked for wrecked ones locally. Use www.car-part.com to search for an 04/05 engine. Watch eBay, for sale boards on this forum... etc. You'll need the engine, all of the wiring, ecu, and might even look into getting the gauge cluster and wiring as well.

Hex

Why all of the extra fuel? Its drowning.

Hex

SRT swap and be done. Double the power, OEM reliability.

Hex

The OBX needs a brace from the head flange to the turbo flange if you plan to put a big turbo on it, otherwise heat will make it bend/crank. As long as its properly supported its a decent manifold, even though the flange/tubing transitions are HORRIBLE in the manifold. I had one for a while, they ar...

Hex

OP, what other mods do you plan on doing? Is an engine swap possible? A stock SRT engine will be the best mod you can do. Cheap, instant ~250 HP, very easy to upgrade, reliable... Weight loss is the best free mod you can do. Rip out anything you don't need. Don't need AC? Remove the compressor/lines...

Hex

I'm gonna get one ebay ic kit and try it out. Hopefully I won't need 2. I'm all about function but I try to stray from the "ghetto" concept. Again thanks for the suggestions guys! Sent from my DROID RAZR using Tapatalk 2 You talking about piping or intercooler itself? You might wanna get ...

Hex

why not? Because twin turbos are most often associated with 'V' blocks that have more than 1 cylinder head so each head can drive its own turbo and make the exhaust plumbing much less complicated. Exceptions to this are some inline 6s, but only because they actually have enough room to mount them. ...

Hex

To sum it up: Take your pick, 2.0 or 2.4, its not going to matter. Either way you won't be hitting 8k RPM in a daily driver. You'll need big cams to make power anywhere close to that which will give your car a poor idle and bad city economy. The 2.4 will make the same power at a lower RPM. So if RPM...

Hex

Nitrous can be ran with E85 just fine as long as you get proper jetting to compensate for the larger amount of fuel that will be needed compared to gasoline. The nitrous side of the jet will be the same, but the fuel side will have to be larger since more alcohol is needed compared to gasoline. Most...

Hex

Ill sell you 4 brand new Caliber coils. Perfect length for DOHC. Mounting is your problem, but a grinder and a drill will do the trick.

Hex

The weight difference between a kevlar pan and an aluminum pan wouldn't justify the price difference or difficulty of fabrication. Fiberglass is also a HORRIBLE material to use to make a pan. Its extremely prone to cracks and impact fractures. Bottom out one time, and the pan will crack and leak out...

Hex

A/F Issue: You need more than the downpipe unless you have something better to tune with. On my stock SRT-4 /w open downpipe the car will start up and idle at stoich, and then the A/F will drop down to ~10:1 and the car will idle like it has a big cam, lope lope lope. This might be causing some of y...

Hex

Say that to the dozen guys pushing 650+ WHP on a 300 dollar turbo that I met up with this past weekend about getting my nova running on the turbo setup. There are literally 50+ people on LS1tech using the On3 76mm pushing 600~ hp and I still haven't seen a SINGLE failure reported on the website. I'v...

Hex

I would help, if you were on this side of Columbus...

Hex

What kind of budget are you on? There are some decent chinese turbos on ebay that have been proven to make power. Not going to be as cheap as a junkyard turbo, but all of those are either going to be small OEM turbos or large diesel turbos. The ebay ones can be had for ~300 or less and be good for a...

Hex

I still cant get over the trap speeds some of you are running.

The first time my nova broke into the 9s it was at ~136 mph. 150s is good for 8s on a good launch.

Nice run. Car looks mean.

Hex

Can you honestly say that you can't find somewhere better to invest that 464 dollars and whatever amount of downtime?

Hex

Are we talking about the 01+ R/T sohc head? What other R/T SOHC head is there Only the 01+ R/T SOHC got the magnum head design... doesn't mean it was the only R/T to ever have a SOHC engine. The compression bump of the SOHC head on the DOHC block is about half a point, but it won't be too noticeabl...

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