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Old 02-27-2010, 04:02 AM
kynsi's Avatar
kynsi kynsi is offline
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Join Date: Nov 2007
Location: Finland
Posts: 185
Quote:
Originally Posted by Joreto View Post
What I'm interested is at what rpm does it reach full boost, bet its quite high in the rpm range. Looking at the video you posted, seems there was quite a lot of lag after the last gear change . BTW are you running megasquirt (looks like it in the picture) ?

amosfella, says it's a Garrett GT47 74,5/88 . Looking in the garrett sait this is a 700+ hp monster .
This one has same compressor dimencions:

http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT42/GT4202_731376_2.htm

Something like GT47 74,5/88 is right. To me and my friends GT47 was only a joke at first, because I have TA51 (called gt42 nowdays) also t6 flange which was planned to be installed. First test drive was sccess, so TA51 was never installed.

Lag is under 6000rpm in dyno and 5000rpm in street. Revlimiter makes the power area. Example:set to 7000 makes only 2000 power area, set to 8500 makes 3500 power area.

Last gear in the video felt like something is wrong (no power) an after 1 second head gasket came off. There were almost no smoke because in drag racing you have to drive whith pure coolant water (no glycol smoke). And the pistons were broken too.

New engine should be more agressive above 3500rpm so we well see (or not) the difference in lag. Inlet cam was also set in wrong way last summer, that was not helping the laggyness.

Yes im driving measquirt, old and reliable. Megasquirt unit was first made for my Ford sierra in 2005. Same unit is in my MB now. I have driven full street dragracing cup whith ny Ford. Sierra was 2litre OHC garrett GT40 Quarter mile went 12.358 192km/h.
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Last edited by kynsi; 02-27-2010 at 04:24 AM.
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