rotorocks

Their dyno has been posted along with all the rest on the dynos thread long time ago, and while we're at it - reposted on your thread. Pay attention!

eastcoastrotary

come on now...i know perfectly well that the MM Upgrade to the Greddy Kit dyno has been out for a little while and i have looked at it more than once. i think that this new, complete kit is not simply the MM Greddy Upgrade in different packaging; doesn't it have some new and different parts? as i'd said before: what i want to know is how this new product will differ from the older dyno i've already seen. pay attention

rotorocks

Manifold is the same, just made with proper flange to fit the Garrett turbo. Turbo is the same. Pipes are the same. Well they added CAI.
The flow characteristics have not changed.

kersh4w

iTrader: (3)

int-x is a piggy back ecu. the ap remaps the current ecu.

Falken

The problem I have with that and what mysql posted is if thats true than this is nothing more than the same kit with a BHR logo on it. Is it really the same kit? Than why buy this one over the MM upgrade alone?

Doesn't make any sense. Something has to be different. There is a new turbo, likely a better turbo, which will hopefully have a better curve, or theres simply no reason to buy it.

rotorocks

Duh... BHR and MM are working together. they are the same peoplez

MM upgrade is an upgrade. meaning you have to have a greddy kit to install the upgrade

They will likely to continue the MM upgrade for those who already have the Greddy kits, but will sell a full and complete BHR kit to those who are NA and want to go FI.

what's there not to understand?

mysql

You'd want this kit over the greddy kit + MM turbo upgrade, because if you buy the greddy kit, you end up with two turbos, and the greddy ultimate, which you also wouldn't want. The greddy kit comes with a hot air intake which isn't usable for the accessport too. Add in crappy couplers you have to replace, fuel injectors you also need to buy, and the list goes on.


So long story short:

IF you have the greddy kit, you can get MM's turbo upgrade. It's less than 2k upgrade cost.

If you don't have anything yet, you'd want the BHR turbo kit instead, as it has all the proper "greddy fixes" already done, upgraded couplers, fuel injectors, etc. You get what you need the first time around without paying double for crappy components that you wouldn't be using.

Falken

Ahh I was under the impression that MM sold both his upgrade and the greddy kit to use with his upgrade. I get it now.

eastcoastrotary

yea MM did offer to sell the GReddy kit together with his upgrade for $5900 before, but injectors were optional and you used whatever ECU you had previously or was included with the GReddy. The new BHR is a complete kit; i just thought it might have slightly different characteristics. i guess we'll see once it's released.

back to thread topic...i'm going to look at some of the turbochargers rotorocks mentioned and see if they present any super-exciting options. if they do, i'll look at some applications.

mysql

Jeff spent a lot of time researching turbos and their flow characteristics, before selecting the turbo in his kit. You're not going to do some internet searches and come up with something that will magically work better by pure luck.

eastcoastrotary

I'm sure he did, because he's clearly put together a very successful product with performance results that I would very happily add to my car. I do, however, have somewhat different goals and am still considering developing my own kit to suit them. As such, I'm going to look at turbos to meet my own conditions, not to attempt to improve Jeff's high-quality product.

rotorocks

Well you should keep in mind that Jeff was looking for the best turbo for the particular application - given the space limitations and what not. But that turbo is pretty sweet.

mysql

heh. It's true this is as big a turbo that can fit by the manifold, however if you think about it from a power output point of view, anyone who has no goals to exceed 400 whp isn't likely to find a faster spooling turbo. I haven't seen anyone hitting 400 on pump gas, and don't expect to see it for quite some time, if at all. So I don't see how a larger turbo would do anything besides increase spool time.

eastcoastrotary

but i'll be looking at smaller turbos and targeting 300-310whp with no intention of going higher, so increasing spool time should be viable. although MM's number on the dyno from the previous post is 316whp, i was under the impression that it was in the mid areas of its boost capacity and that it was designed to potentially go higher. i don't really want to go higher, so i'd keep the top end at 310 instead of the mid end.

i am new to the details of forced induction: i understand how it works, what each component does, how they work together, etc., but i'm still learning about characteristics of turbochargers, estimating boost to achieve certain whp, assessing turbo characteristics to match with exhaust flow rates....the small but critical details needed to pick a great turbo and build a great kit. as such, i have a question: is what i said in the previous paragraph viable as far as using a smaller turbo than in MM's GREddy upgrade to still achieve 300-310whp?

please correct any statements i've made if they're totally wrong

mysql

greddy turbo is quite a bit smaller, and can only realistically go to 280-290 whp, and it doesn't spool any faster than MM's. Part of that is due to the greddy being journal bearing.