2.4 build advice needed.

[Tachyon]

I've decided to build one of my 2.4 G4CS blocks this month and am looking for some advice from the people who have been down this road before.

Basically what I would like to do is a 10:1 compression build that will be running E85 and as much timing as possible. I also prefer little turbos so odds are I will be overboosting something small only adding to the difficult cylinder pressures. My main question is what head gasket and stud setup would make the most sense for a higher cylinder pressure engine like this?

P.S. yes I do enjoy longs walks on the beach and rebuilding transmissions.

[goodhart]

I would say a Cometic MLS, and some ARP L19's should get the job done.

[carltalon]

Felpro MLS ( I think is availble for 2.4 ) and ARP L19's

[Tachyon]

Felpro MLS ( I think is availble for 2.4 )

Oh nice, looks like the Fel-Pro MLS is 87mm bore. Has anybody had any problems using the L19's vs the H11's? (I am assuming the price difference is in the marketing?)

I had a Cometic HG on my 2.0 and was pushing coolant even with using copper spray so I am kind of looking for an end-all solution if it exists.

Another idea that was suggested to me was to O-ring the block and use a stock composite. Anybody have experience with that type of setup?

[v8klla]

The Felpro PermaTorque MLS seems to be the hot ticket these days, we have and will continue to use it on the RX-7 with great results. The bore size will support the 2.4l platform unlike the Mitsu MLS which would be our second choice.

In regards to the L19 vs H11 question, they are actually the same material just a different name (apparently ARP made up the L19 designation). Also, the pricing on the A1's has come down dramatically so we are able to match the ARP pricing :)

I just so happen to have both the FelPro MLS and the A1 studs in stock, feel free to stop by ;)

[blackrosenova400]

I just got done with my 2.4, im using Arp L19's and the Fel Pro Permatorque. Id go with that route. I went with Wiseco 8.8:1 Pistons, Eagle Rods, and im running an evo III 16g with e85 and loving it.

PS, The oil pan will not clear the Arp main studs, if thats what you use. I actually used a crank scraper from here, http://www.crank-scrapers.com/prod01.html, it helped, stil need to clearance the pan just a bit.

[Tachyon]

That good information to know. Thank you gentlemen.

The only other thing that is bothering me about going 2.4 is I hear the lower end likes to shift around more than with the 4g63? Would it be prudent to run a main girdle on a 2.4 or am I listening to baseless hearsay?

[95talonracer]

Why so much timing? You dont gain much past like 16-18 from what I have heard.

[sleepydsm]

That good information to know. Thank you gentlemen.

The only other thing that is bothering me about going 2.4 is I hear the lower end likes to shift around more than with the 4g63? Would it be prudent to run a main girdle on a 2.4 or am I listening to baseless hearsay?

You could just use a 7 bolt 2.4L with a full girdle....

Or get a Kigley girdle.


Or you could "dowel" the main caps...

[Tachyon]

Why so much timing? You dont gain much past like 16-18 from what I have heard.

You can on E85 since it burns slower. I picked up 30lbs of TQ on a mild 14b 2.0 setup going from 18 to 23 degrees. At 24 degrees it gained nothing, and by 25 degrees it would actually drop. Obviously I am not going to know where the sweet spot for this engine will be until it's on the rollers.


You could just use a 7 bolt 2.4L with a full girdle....

Or get a Kigley girdle.


I am already setup to use the 6 bolt. I am leaning towards the Kiggly girdle but I need to do some more research first.