eagle rods and wiseco piston setup

[turbogsx98]

I just got a 98 gsx a few months ago. The motor is a 6 bolt built with eagle rods and wiseco pistons 9:1 compression built 2g head with crower springs retainers 1mm over valves and crower 272 cams. Current I have a 20g turbo on the motor. I'm looking to upgrade the turbo to a 35r or maybe bigger. I was wonder about how much horsepower the motor would be able to hold?

 

[drfinest1809]

crower is good to up to 550 max i belive you dont want to go to over that. im goin with almost the same set up my self but i have a lower compression for higher boost and less risk of blowing the motor

 

[spoonman]

Depends.

If the parts were installed and machined correctly the bottom end can easily withstand 600+. The head gasket and head bolts (studs) are the next weak link. If the engine does not have standard ARP head studs or better swap them out. The easiest way to bend a rod or destroy a piston is to have the engine improperly built and tuned. If you are to lean on the Air/Fuel mixture you will destroy your engine, if you have the ignition timing to advanced you will destroy the engine. Both will cause "knock".


Proper tuning and good parts assembled correctly make a happy engine.

 

[420a-t]

People gave made gobs more hp on eagle/scat rods. It all depends on the tune and machine work.

 

[gstryyder]

reliably 600hp... depending on the tune. in all reality. on a great tune you could see around 700-800 hp with that setup. being that all work was done right. it could take what a 35r will dish out... and then some. you have no worries.

 

[spoonman]

The 2008 Eagle catalog rates the rods for 1000HP.
The 2010 Eagle catalog rates the rods for 900HP


You can push the rods to higher power limits but if he really wanted to run stupid high power levels an aluminum rod is the only way to go. If he did want to run more than 600 the machine work would have to be very different. (PTW clearance, Ring Gaps, O-Ringed, Filled Block)

And if he did want to runner higher HP than I stated he would have a completely different set up.

 

[420a-t]

I know what you were saying, I just didn't want him to think his bottom end was going to be the weak link in any way on that setup. If they're rated at 1000, and the standard wisecos have made a ton of hp as well, just wanted to make it clear

 

[BigBeans]

Eagle rods are not rated at 1000hp...half that actually.

They will hold far more than the rating with no problems. I think people have gone over 800whp on them, but it is certainly not recommended.

If you have all ARP fasteners, you have no worries with a 35R.

It seems like you have a 2.0, so going larger than a 35r is not going to be fun on a street car. You want to keep a decent powerband to be usable in the real world.

 

[turbogsx98]

the motor is a 2.0 built with all arp hardware and the head gasket is a cometic. soo the motor would hold up to the 35r? would that setup be good for the streets??

 

[LiquidX]

Eagle rods are actually rated up to 700HP reliably, after that it's cutting it. Valve springs have nothing at all to do with horse power, they are used to prevent the valves from floating at higher RPMs or from the use of higher lift/duration cams.

Your motor can handle the 35r assuming that you have all the supporting mods to run it. Sure anyone can put on a Garret 35r but does that mean they can run it, no. You need proper fuel supply, air flow, exhaust flow and a tune appropriate for it. For all you know, you may only be able to run 23psi on it until you start knocking. At the 23psi it could only be doing say 320hp at the wheel.

Point being, if all of your internals are set to run X HP and you have a system capable of supporting Y PSI then the turbo in question could make Z PSI which then would (if it's capable to produce it) make X HP. Then you can run the turbo in question to the max to make your goal/be under the limit of the engine. As long as your car is happy with the turbo you will be fine running it. Only way to tell is to make logs and see how it's running.

Are you using regular ARP head studs or the L19s. Regular ARP head studs are only good for about 30ish psi before lifting the head I belive.

 

[BigBeans]

Without looking it up, i think you're right about the 700hp rating.

The last place i saw them listed was STM and they claim 500...probably to sell more expensive rods.

 

[chinola69]

600 plus easy

 

[turbogsx98]

i was thinking of either upgrading to the hta35r or a 6262. what do you guys thing about these two turbos which flows better and which would make more power?

 

[mrbill86]

Actually, if you go to Eagle's website, they clearly state that their rods will handle up to 1,000 hp. Check it out for yourselves. Eagle Specialty Products, Inc.

 

[talondave]

Im not real sure on my power, but its up there and I'm running standard wiseco/ eagle, and have been now for 2 rough years 70+ track passes, without a single issue or rebuild!

 

[1qkfwd]

I've been running the same eagle weisco setup for over four years. 100 or so passes which 50+ where on my 4088R at 30+ lbs of boost. Strong budget setup. At the time I bought my eagle rods they only claimed there rating was 600. Many machine shops called there rating underrated and seen many eagle h-beams make upwards of 900 hp. It's really all in your tune.