Thumper Performance (TPR-1 )

Mileage with heads is BETTER
“The mileage, when I keep my foot out of it has gotten better! The first week I had it I saw about 23mpg, naturally because I was beating on it. However: On the way up to Thumper's, I saw 27.3 mpg from Tampa to Jax. That was with many (5 or 6) 75-120mph passes. On the way back, between Orange Park and Ocala, I saw 28.7mpg (calculated by filling up and dividing the distance) Between Ocala and Tampa, According to the OBC I saw 28.1 That is better than the car was stock.”
Posted SSM 12/06

 Thumper Ported Head even works UPSIDE Down !!
( Aussie Dynos read extremely low as to the Dynos in the US!)

Hi Mike,
I went to another dyno day and wow it must be the Aussie dynos!!!!!
My car was putting out 140kW (without meth injection), there were other cars there with after market heads and they only managed around the 130kW mark!!!!! With the meth my car is putting out mid-high 140's
One person in particular only put out 133kW and he had spent 3 times as much as me and has a full racing set up!!!!!!
So this makes me feel much better! LOL!
Sorry to stress you out!!!!!!!!
Your head rocks and all is good!
Thanks

( edit!!)

... few days later...!!

Hi Mike,
I found out what the other heads were at the dyno day and I have included 2 of their dyno graphs, the third guy would not give me a copy because he had the shits!
There was a Cosworth stage 2 head, a mini madness stage 2 head and a local job polished and ported with 1.5mm oversized ultric valves. All had shrick cams.
My head kicked ass and at half the price! ( Thumper Performance Head  TPR-1)
Check out the torque curve of mine compared to the 2 others! No wonder mine pulls like a bloody elephant!!!!
One very happy Aussie!
Thanks Mate!!!!

(edit!!)

... and finally…

Hi Mike,
I thought I would let you know what is happening down under!
I got my car tuned by some guys who finally know what they are doing and the car is putting out 163kW (without meth).
The guys at the shop think that with larger injectors and the water meth on and running properly that 170kW is possible....(the water/meth jet is too big and I need to get a smaller one but that is another story)
WOW!
Here is the dyno graph attatched....
 
So 163kW equates to about 220hp and this is on an Aussie dyno!!!!!
On one of your American ones it would be putting out alot more probably more than a RMW head!!!!
YOU ARE A DEAD SET LEGEND MIKE!!!!!

Supporting mods will help make more power.
One of the reasons why you see manufactures show a range of power estimates. Look at it this way: Lets say you bolt on one of his heads to a stock motored mini. Lets entertain ourselves and say he picked up 12whp on the dyno. OMG this head must not be that great only 12whp. What you have to understand is that when someone like Thumper says his product will make 18-30hp, its pretty much implied these days that you have the supporting mods to take full advantage. Since this head breathes better, the engine is now being limited in power production because of the exhaust / intake and tuning. So take the same scenario, but the next car has headers, cat back a cold air intake and a 15% pulley. Lets say they pick up 20whp. Now this same head rocks because the person was able to take advantage of the extra flow that a head provided. Lets change it up a bit. Lets say you were in the stock mini that now has the head added. You go out and see the pulley claims a 7-10whp increase. So you add the pulley and dyno again and pick up 15 whp. Wow how did the pulley do so much? It is because the head took advantage of the extra air you were putting in the motor. If I had to do all of this over again, I would have done the head first. Even though its not the cheapest mod, it is one of the best for the money. Aside from the pulley or nitrous will you not find a better bang for the buck for this car. The bottom line is that the head will make the most of any mods that you do. If you start with that, you will see much higher gains for each mod you do since those mods will likely work better with the better head.

2004 MINI Cooper “S”
Here are the results of Ported Thumper Performance Head on my 04 Mod’d MINI. Quarter mile time dropped from 15.4 et’s @ 93 mph to a 14.9 @ 96 mph. Of course the 60 fts were as usual.. bad!! (edit: Wheel HP went from 187 WHP to over 211 WHP ( 240+ BHP !) see Dyno run. ) Thanks Thumper .

Thumper performance head installed - Wow!
Yesterday I had a new head installed on my 06 Cooper S, and the shrick swapped over to it. The car is freaking unleashed! The seat of the pants dyno says that this thing is unreal. Prior to getting the head done my best pull was 196.4whp/173tq with the following mods: JCW injectors/ecu software, shrick cam, megan header, milltek exhaust, Random Tech cat, Alta CAI, IC, 17%, 0% lw crank pulley. Next weekend I plan on getting it dynod at my usual dyno just to see what kinda numbers it is putting down. I can happily/sadly say traction is an issue in first gear! ( Those results were 225WHP )

All I can say is that the car is unbelievable now.
I already had the laundry list of mods and just wanted to be above the 200whp net. I definitely think I have surpassed this, but we will see next weekend. 2nd gear has crazy pull now, and 5th and 6th on the interstate will get you around just about anything. I cant wait till the next track event to see how the low end jump helps pull out of the corners in 2nd!!!
 

     Some Info on the TPR-2 Ported Head..

TPR-2 VS a RMW Head ...... The TPR-2 head with 15% pulley, Janspeed manifold, JCW CAI,stock cat back and newman cam - generated the same hp/trq curve as : RMW head Janspeed JCW CAI 15% stock cat back newman cam combo.
 

***** Independant Dyno run in the UK, by an independant Shop (1320 Auto )

---------------------------------

 "As some of you aware Mike sent us a head to do some testing and see what we can get out of it in the way of performance on the dyno and on the track.
As you can see from the dyno sheet comparing the RMW head and tune on Big Shows car and the Thumper head and a Chris tune on 1320’s Mini
We still need to do some more testing off combos as and when we can but we have achieved the following so far."
( Note: these numbers were with a bad ECU!)

******This car has gone 11.70's on a 80 shot of Nitrous 

UPDATE:  Car Has NOW Gone 11.16 @ 123.10 MPH and is the Fastest "Super Street" MINI in the United Kingdom

As you can see.. the power is right were we want it.. " the Sweet Spot"  HP- 2500 to 7100 revs/ Torque- 2100-6800 revs

   NOW The MINI ( R50 and R52)  Have a PROVEN Performance Mod!!  No Longer do you need to listen to the reply...." buy a MCS!!"

                                                                                    TPR-1 on the r50 'justa'

                                                          and...

TPR-1   ...　I went all out on it... I was shocked/impressed/scared all at once. As I said earlier, the car feels much lighter (but it's just more power) and it picks up speed like nothing else. This experience is based on a 4-year-old MINI with STOCK ECU, ...

The new top speed is 130mph,... The thing that amazed me the most was the acceleration. The car just picks up and wants to go. Next thing I know it's 5K RPMs and I have to be alert to shift. And then it's the same thing again. The power doesn't die until I get to 6K RPMs in 5th, when it's going 130mph...

UK Time Attack

Brownpants Racing

SEE Article in "Modern Mini" Mag sept-oct issue pg 24