[kurt70S]

Bill Trovato and Dave Laurer both run NSCA limited street. Dave and Bill both run nitrous fed small block powered olds motors and both run in the low 8's. These two motors have GRP aluminum rods in them. I've never heard of any rod issues in these motors. Check out wwwbtrperformance.com

[74t/a]

The small block series of rods are built on a different forging or billet than a BB style rod. You can't compare the 2.

[Fast Floridian]

If Charlie wont buy a pair for 400 dollars that tells me I dont want them in my motor

[kurt70S]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by 74t/a:
The small block series of rods are built on a different forging or billet than a BB style rod. You can't compare the 2. </div></BLOCKQUOTE>

74 T/A can you explain this in more detail please??? I don't quite understand. The rods for my 455 olds motor are sbc size on both ends (.927 wrist pins, 2.100 rod journal)but they are 7.350 long (custom stroker). Which are they, big block or small block???

[74t/a]

Kurt, a rod that long will probably be built on a BB forging or billet and have the big end machined for the SB journal size. There are so many different rods for the different engines out there. Most BB nitrous rods are built on a "426" hemi rod, but ther are veriations to this as well. I am mostly refering to BME rods because I have had the best success out of them. They are in an engine that is running consistant low 4.70's in an outlaw 10.5 car. I change them in my customers engines every 70-80 passes and have not had a problem yet......knocks on wood.

[9 sec TA]

fast marcoss, after speaking to michael giannone about the problems ive had with BME and now GRP rods, both companies tell you a bunch of bull. they blame the caps cracking to dissimular metal corrosion. the real problem is poor desgin and or wrong machining or both. i baught two sets from GRP at about the same time one set went in my eng, the other set in a customers eng,I got 73 passes before they broke my buddy rorys got 350 passes and still going?

[74t/a]

What problems have you had with BME rods?

[PHILLYGOAT]

Do you guys with problems use a stretch gauge or just torque them?
PHILLYGOAT

[9 sec TA]

philly goat, its not my first go around Ive been building aluminum rod pontiacs since 1983 Ive had BMEs last 500 passes and last 50 passes, we also used howards rods many times with no problems, in fact one of my motors is still running a set of howards rods with a 1000 or passes on them. so why did these GRP fail so soon? Ive used BME rods in five different combos, all ended up with cracked caps after 200 passes, but I caught it in time. GRP was new and suppose to be the best. I must of got a bad set?

[74t/a]

I guess that makes sense, we replace our rods more often than that. Also, the blown alcohol engines we replace them every 40 passes. I've seen them break after 50.

[PHILLYGOAT]

I was just curious as I have a used set and was freaking out about getting the torque just perfect. I was surprised that MOST builders I asked about it DO NOT use a stretch gauge. I chickened out and had Charlie Haskins button up my engine. Including dyno runs my rods have probably about 90 total runs. My engine makes under 700HP and I usually run at 5000plus altitude which takes a BIG chunk of power out so I hope I'm safe. Still, this GRP thread is giving me a sick feeling!
PHILLYGOAT

[PONTIAC DUDE]

Sh*t happens. Like I tell people from the get go. Your building a race engine. Stuff happens with materials and products. One can only guarentee workmanship.
Nobody wants to break. But notice that how many engines popped at the NASCAR California race and they spend <span class="ev_code_RED">how much?</span>

Good, bad, application, etc, etc. Never ran them and don't know.


But......Like I tell 'myself' and others.

If ya want to whine about it, Stay home and watch it on ESPN.

[fasteddy]

Hey Philbert-how ya doin'? I did not see any way possible to use the stretch guage on my BMEs. The bolt goes into a blind hole in the rod. Is there a special guage for this application?

[9 sec TA]

bump

[9 sec TA]

spoke to brian at GRP wensday he suggested that I use a BBC jounral rod instead of the pontiac jounral for added strength, he told me they haven't had caps cracking with the BBC rod. I told him let me think about it. today I took new block to RUSS RACING ENGINES in hollywood fla, to sonic check the clyinders, while I was there he showed me two sets of BBC GRP rods with the caps cracked just like mine. I told him all about the MGP rods, he's not going to use GRP rods every again. every buddy out there running alumiun rods should give MGP a call 623 587-0249 thanks again

[Eric Larson]

We've used BME rods exclusively in the Grocery Getter and have never had a problem. ALL aluminum fatigues (regardless of brand) so you have to keep track of your runs and retire them when the mfg. tells you to. For our application (nitrous, 8000 rpm) Bill has us take them out at 100 passes. A milder application could probably go 200 passes.

[Eric Larson]

BTW....we use the BBC journal size with big fillet radii. That adds some material to the rod cap and there are a lot more bearings available in that size.

[John Bailey (GTOKID)]

MGP,GRP are the same rods...I know 2 really,REALLY fast guys here localy who use MGP and have had trouble. Miller rods seem to have the best reputation for going forever (LOTS,OF RUNs) with out taking a walk out side the oil pan.

[J.C.you]

these will stick with u and not fly apart. BME 426s

[shaggy69gradprix]

i aquired a alluminum rod shortblock with GRP'S whats the torque on the rod bolts stock leangh rod's.my block was cracked so a friend gave me this shortblock.but got water in the oil and the main bearings were flakeing away.it has breakin time and about 5 motor passes and this is true because i was there.ther is alot of negativity about these rods im running them reguardless.but would like some more info if it is out there positive or negative.