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GTM V7R-820 QuattroValvole Info & Dyno Runs

GTM®

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GT di Razza Pura
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First fire of our 820-4V and revised Dyno numbers below.



~67 rwhp & 57 lb.ft. torque:

30BCD749 6B9B 43D5 966B 6F05276172F3


Sund V7R with DNA Filter and GTM ring;

SundV7R 820 QV
 
Nice job and well done all around.
I'm happy with my GuzziTech re-mapped V 7 and don't lust for more.
For those who want it it sure looks like the package to get, though. I get "too much is just enough" though!
 
Why ain't you on the east coast???

If I didn't hate flying I'd jet out there for a play day.

Wife is flying out over xmas to see her people & I'm not going because they all know I don't fly.....now I really can't go..BAH!!
 
Why ain't you on the east coast??? If I didn't hate flying I'd jet out there for a play day. Is that with the stock cam?
It's a quick flight, just red-eye so you can sleep with a sedative. It'll be worth it.
Yes, stock cam. I left it once I saw the dyno results of @mwrenn's 750-4V. Impressive if you haven't seen it HERE

Should have mine on the dyno once I sort the fueling next week and get a few miles on it.

GT Rx V7 820 4V
 
Off subject but do you ever sell off any of your rental units? i'd love to have a GuzziTech V7 or Racer that had been tweaked by you.
 
Off subject but do you ever sell off any of your rental units? i'd love to have a GuzziTech V7 or Racer that had been tweaked by you.
Yes I sure do, however I usually have a few people in line who ask the same.
 
Hi, it's possible to read and see what pieces have been used for this kit and maybe some photos?

Bigger pistons, OK but which type, made by who? Etc

4 valves, OK, but dimension, material, producer etc?

The head has been modified for the 4 valves, OK but still remain a flat heron or has been re-engineered an emispheric head?

Moreover, in the '80, first the Lario and then the V75 had 4 valves (as you know) with lower displacement of this kit but with higher power, is strange... Isn't it?
They had problem with valves (too soft) and spring valves (too stiff) but with modern production and materials could be easily resolved.

Probably this my, could appear a bit critic, but I'm a big fan of Guzzi and I really appreciate every job that will improve the small block.
 
Any thought on the price point for the whole kit? Does it come with everything needed to turn a V7 into a V8-Quatro?
 
Dan, yes it does. Approximate cost is $3500 outside of labor. Interest has been so minimal that I haven't ordered another run of pistons yet. Contact me direct email; Todd at GuzziTech.com
 
Wow! The blue & the green follow almost the exact same pattern but the green shows big improvement.
This is on the V7R rental bike?
 
Wow! The blue & the green follow almost the exact same pattern but the green shows big improvement.
Yes, stock cam, and 749cc vs. 820cc.

v7-v74v-gtv8204v-jpg.10995
 
Do you have a final dyno sheet?
Added at the bottom, 67.3 rwhp with a K&N filter and stock air box lid, and very bottom @ 70.4 with DNA deep filter GTM AirBox Ring and mapping. Below graph from above: Red trace is a stock V7, blue is 750cc-4V and the green is 820cc-4V.

V7 V74V GTV8204V

Final #'s with K&N filter and stock air box lid:

097AAFB7 E173 49A8 AE88 F7805A08EDAD

Final final #'s with DNA deep filter and GTM ABR:

SundV7R 820 QV
 
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