Originally Posted by houston (Post 6826614)

i can only try ;)

Originally Posted by ck960 (Post 6826644)

i think i just need to read more here in this thread to know what i need:)
btw what is FMS engine? some mod Nova??

Originally Posted by merdith6 (Post 6826738)

It would be nice in a buggy with the right stuff. 9086 or 9853 pipe with short header. My 367 was sick in buggy. Pulled all the way down the strait, plenty of torque, but I had trouble keeping it lit, Is the toro nero easier to keep running? I never took shims out though. I was running stock shims, and a medium mc-8. Any advice to toro nero racers running standard plugs. Is their differences in the 367 and nero? The 367 was nice because it was smooth and wasn't a lightswitch. Perfect powerband. I'm sure they have fixed any issues with flames, but I'm sure you would know Monty, or anyone else?

Originally Posted by PowerHouse (Post 6817085)

You are absolutely right about the air filter and the flow through the intake manifold. The main reason I don't really talk much about it (I guess I should so we'll talk about it now) is because the air filters and the style and shape of the intake manifolds are for the most part pretty straight forward. You will less likely have problems with airflow to the engine than selecting the wrong pipe and /or having the wrong tune. The airfilter as you mentioned can certainly affect an engines perfromance, not so much on these engines with the length and shape of the manifiold but more with the filter density and oil thickness in the filter. I have seen 280hp 1000cc pro stock drag engines loss over 80hp because the oil on the K&N filters was too thick and the engine couldn't breath. The same could happen in these engines so you are definately right about bringing that up and it is a very good point to make to use a good filter and filter oil in order to maximize airflow but also keep the foreign debris out. I myself use the mugen round filter that came stock on the MBX5 series cars and it may come on the 6 series but I don't know since I don't run them. The main reasons are 1) good density foam but very breathable and 2) $9 for 4 filters instead of $4 per filter through xray. I also use PJ1 filter cleaner and filter treatment on them (the same treatment used on dirtbike air filters). It works very well as there is no signs of dirt entering into the engine through the filter. The inside of the filter is perfectly clean even when the outside is completely filthy. I usually change my filter several times a race weekend to keep the engine breathing properly and running strong. Even though the dirt and debris stay out of the engine doesn't mean the filter is getting clogged and not allowing the engine to breath properly. If you are good about keeping the filter changed out on a regular basis, use a good filter and filter treatment, the engine will perform just fine in most situations. I know K&N makes a small filter that will fit the carbs we use but I wouldn't trust the filter in offroad conditions. I had a couple of them in the past and while they breath great, they also let alot of smaller particals through causing premature engine wear and sometimes catostrophic failures. Companies like Losi sell a 4 pack of pre treated filters for like $6 and alot of people seem very happy with their overall performance and engine protection against foreign debris. I haven't run them myself but from a standpoint, they look like a good buy for the money.

Originally Posted by Speedyrob (Post 6830544)

Anybody know anything about max power engines (C5Q) i know there novarossi based . Thanks speedy

Originally Posted by ohiofordfan (Post 6831979)

i'm getting a new engine this week and i am leaning towards a nova. i would like to know which. toro nero or 7fms. i run truggy and am pretty new but i want one i can grow into. i know it will last me so i don't want to out grow it. what are the differences? will both go 10 min? thanks

Originally Posted by offroad dude (Post 6832008)

Can someone PLEASE tell me how many shim (mm) should I put in my new +4:confused::confused:

Originally Posted by offroad dude (Post 6832123)

Thanks Zixxer... I'm glad you told me. I think I only had about .35mm in it..WOW

Originally Posted by offroad dude (Post 6832605)

I broke the motor in with no shim (like a dumba$$) and it was sounding like it had a seized front bearing or a bad rod. So I took the head off and relized it didnt have any head shimms on it. So I put two OS shims on it for the moment. I thought the +4 came with shims but I guess I was wrong.. BIG MISTAKE

Originally Posted by zixxer (Post 6831591)

most of the xray guys who run em ..said they are novarossis with maximo's little touches . i dont know much more about em they always looked very nice though:nod:

Originally Posted by Speedyrob (Post 6833650)

Nice thanks man im thinking of trying these engines out nova based so cant beat it just wondering if its better than a P5?:sneaky:

Originally Posted by zixxer (Post 6833895)

i have a p5xlt currently ..it has been gone through by a buddy of mine here locally ..he said that the novas sometimes come some left over machine dust ....and that there can be burrs in places where the key parts all fit together (true of most engines he says )...i think the maxpower have been gone through and deburred and fited ...just what ive heard ..so if that is the case you could say that its better than a p5 :nod:

Originally Posted by twitch_1 (Post 6834935)

Hey guys ran my toro for the first time yesterday and was very happy with it the only thing was at the start of every race i had to retune it it's only done about 2 to 3 litre at the moment is this normal?

Originally Posted by Speedyrob (Post 6834510)

If so thats very nice i going to look into them more look very nice. Need good power and good runtime as well. Thanks speedy

Originally Posted by r1harper (Post 6844528)

well i have ran the RB S5 before and it was a very good engine..i had it worked by RB Mods and it was a beast afterwords as well and would go 9 min with a 086/long header. but i do think the P5 is stronger everywhere(in stock form)...and i have not driven back to back with the plus 4...all i can say is the plus 4 is smoother. I like the P5 alot though..and might like it even more in a week or so.....right Monty;)

Originally Posted by PowerHouse (Post 6845857)

The only thing that has changed is the shape of the head. Everything else internally is the same. The P5 should work as good or better than the GRP. I found the P5 to be stronger on the bottom end but alot of that will depend on the pipe, tune, clutching, gearing of the vehicle and the conditions you are running it in. If you were happy with the GRP, you will be as happy or happier with the P5. If you need more power all around, you can always look to the FMS or a .28 to fill the gap.

Originally Posted by houston (Post 6839466)

the 5 ports are sweet !!!;):nod:

Originally Posted by PowerHouse (Post 6845925)

The FMS is a wicked piece but nothing alittle mod work on the P5 can't fix. The milage are pretty comparable on both engines but that will also depend on all the variables that go into the engines overall performance ie: pipe, tune, clutching, gearing, conditions, weight of vehicle, throttle discipline etc. For what you would pay for a stock FMS, you can have my full race ported version of the P5 which will run very strong, get over 10 minutes with the proper setup and will last into the 10+ gallon range if taken care of properly.