Dyno was somewhat successful

[russ jerome]

Quote:

Originally Posted by RacerStev You might want to try the SRT head gasket rather then the standard 2.4 gasket, it has a thicker O ring built into it. TO make it work with a older 2.4 head you need to block the front oil return hole in both the block and the head.

Thats some good info! I will start a new thread unles you or somebody knows:

Can a 2.4 headgasket be turned over so #1 is now on #4 if not using the vent hole between block and head??? I am running T-stat on driver side and the stagerd holes in gasket favor pass side. Looked ok last time I checked but never flipped and may have head off soon.

[FFWD]

Quote:

Originally Posted by RacerStev IMO, 26 degrees even with C 16 is alot of timing. I'd pull at least 6 degrees and try agein.

With any less timing, it runs like a bag of shit, missing and breaking up......



P.S. This is 90_shelby not FFWD

[OmniSRT4]

Quote:

Originally Posted by 90_Shelby If we de-stroked it, yes we would need a different crank. What we would do, is get a 2.2 forged crank welded and offset ground. V8 guys have been doing it for years. The decision was made today to go with a 2.2. As per Russ' suggestion, pick up a mexican common block and get custom rods and pistons (no I'm not posting lengths or specs). We can fit a ring pack closer to the top of the piston, and use pin buttons, cause the oil ring will be on the wrist pin, and get a very respectable, 1.74 ratio. The 2.5 is around 1.45. We may run into problems with belt length going with the tall block, so this was our other option. We could always go with a bigger bore to make up some of the lost 18 cubes. Someone was running chev rods in a 2.2 T3, anyone remember who?

FM's aluminum long rods and JE pistons give a 1.72 and you can buy those off the shelf.

As for destroking...all that does it move the powerband up the scale, forcing an wild cam in order to use all of the motors potential, thereby killing any street potential. (im guessing this is a race only car) However, if you do want to destroke, I would go with an srt4 block with a neon 2.0 cam and custom rods/pistons. I just dont see any actual point to doing this without variable valve timing, even on a race motor. The 2.0 will make the same HP, give or take a few. What it gains in RPM it loses in displacement.

[RacerStev]

Quote:

Originally Posted by russ jerome Thats some good info! I will start a new thread unles you or somebody knows: Can a 2.4 headgasket be turned over so #1 is now on #4 if not using the vent hole between block and head??? I am running T-stat on driver side and the stagerd holes in gasket favor pass side. Looked ok last time I checked but never flipped and may have head off soon.

I never tryed to flip one over but you can cut the rivits and put a center
section in with the holes were you want them. Just be sure to save the
part with the o ring.

This is also a good way to lower compression, cut the rivits and add more
layers to it. Not the "right" way to lower compression, but it works in a pinch.

Steve

[RacerStev]

Quote:

Originally Posted by FFWD With any less timing, it runs like a bag of shit, missing and breaking up...... P.S. This is 90_shelby not FFWD

I'm kinda stupid on the older Mopars, I'm still learning Neon's

Is the shelby engine a 2.0 4 valve? And what's a FFWD?
Also what's the bore, stroke and compression on the SHelby?

Steve

[ohiorob]

Steve

you must be new to all this.

read and you will learn

[QKsilverF1]

90_shelby and FFWD are peoples screen names, i believe they are brothers, 90 shelby was on his brothers name while responding

[FFWD]

Yes, brothers. We share a computer, as well as a house, so sometimes we post as each other.

Thanks for the info Akuma, I didnt even check FM. The car sees very limited street use. Saturday nights, the drive to the track, a couple car shows. I think we're going to stick with a 2.2 anyway. Destroking would allow us to get the "ideal" rod ratio with our stock length rods.

[OmniSRT4]

Quote:

Originally Posted by FFWD Yes, brothers. We share a computer, as well as a house, so sometimes we post as each other. Thanks for the info Akuma, I didnt even check FM. The car sees very limited street use. Saturday nights, the drive to the track, a couple car shows. I think we're going to stick with a 2.2 anyway. Destroking would allow us to get the "ideal" rod ratio with our stock length rods.

The "ideal" ratio isnt such a big thing, as long as you are in the neighborhood. If its a mostly track motor I would definitely recommend the alum long rods! The FM race srt uses a 2.4 version of these and they make ~1000hp. The rod ratio increase is a big plus and the price is reasonable. I am not sure I would use them in a street car though.

[FFWD]

If you are getting custom rods and pistons made, why would you not get them spec'd for the "ideal" ratio? Yes, we are aware Darrell Cox runs 1000 hp on those rods. The car is street legal and is likely going to stay that way. I don't think I would try even the 1.5 hr drive to the car show we take the car to every year with the aluminum rods. Reasonable? I couldn't find the listing for them on their site. How much is reasonable?

[scott]

I think they sell for $600 from FM...Cliff and I have installed a set in a customers car and they are really nice and the motor sure does spin up fast =]. But for a few more bucks you could get a set of rods made to your spec I would imagine.

--Scott

[RacerStev]

I have a set of off the shelf GRP rods from FM in my 2.4. I only have
about 40 pass's on them and about a dozen dyno pulls, but so far so good.

This is in a street legal Neon, maybe 500 street miles on them.

FM told me last year that they have some customers with 20K plus miles
on them w/o a failure.

Steve

[ohiorob]

Sorry Steve , i thought you where new to all this. sounds like you have a kick-butt neon. I would like to know more a bout it.

I run GRP rods too. 7000 RPM sounds sweet in DOHC

[RacerStev]

>>>>>Sorry Steve , i thought you where new to all this. sounds like you have a kick-butt neon. I would like to know more a bout it.

I run GRP rods too. 7000 RPM sounds sweet in DOHC<<<<<

No problem! I really am kinda new to the Neon and really know very little
about the older turbo cars.

I don't want to hijack this thread so I'll keep this short. I have a 1st gen Neon couple with a 2.4 swap, auto trans, t66 turbo, air/water IC, Autronic
SM2. I run the car in NHRA's Sport FWD, IDRC's Pro Am FWD and NDRA's
Turbo 4 class. Best pass to date 10.16 at 145 mph.

She's apart for upgrades right now, hope to run some good number at the
next NOPI race at Maple Grove.

[QKsilverF1]

yeah neons are cool