Hi..

I have the oppertunity to buy a used accel dfi and I need opinions. Is it worth it to convert to a speed density system?
What should i think of if i buy it?

All opinions are welcome!

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GTA -89:Free flow muffler,dual 3" HF cats, Edelbrock headers, Vette heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTB, ported plenum, 52 TB, MSD 6AL, TPIS level V prom, Mod .MAF, Superior shift-kit and some minor mods. and more to come!
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

 

Depends on how much the DFI costs :-)

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.587 @ 107.97mph (1.710 60ftr) on the long runner setup.
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels. Stock Wheels. No Weight Reduction.
Gunning for NA 11's with the MiniRam II and Hooker LT Headers.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

If you need a new chip and like tinkering with the programming, it's a good way to go. It depends on what you want to do, and what you will be getting with the DFI (and for how much). With all the info on this site, it might be better to set yourself up with the equipment to burn your own PROMs. If you go with the DFI and have questions, send them my way.

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Bob '89 Formula CC350
Charter Member of the Elusive Great Lakes Crew
My car's homepage

 

on my 85 I messed with the DFI for a little bit and was never able to get the programming down. but now with a littel more programming experience under my belt I may have done better. DFI has a couple of extra features the GM ecm does not have .

Programming a 7730 to the DFI are so very similiar. so its very close. cost comparo
7730 ecm $50
90memcal $45
90knocker $40
wiring and pigtails $25
diacom or scantool. 300-450

DFI usually 400-600 used.
wire harness( or direct adapter harness-BEST route to take) 150.00
DFi software 125.00????

Laptop and map sensor needed for both (map $35) laptop =??? chepo about 100 bucks

opp forgot the burning software for the GM ECM tuner cat is about 110 maybe cheaper . GMepro about 100 as well. the eraser and programmer. so that cost does add up.

Overall I think the GM 7730 is a tad easier tuning . burning chips does get old after 50 or so.
This is just a general outlook . Hope this helps some. now if your getting a great deal on the DFI them maybe go for it . I f I had todo aftermarket I would go for hte wideband o2 setups like felpro of the new DFI
Dennis

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85 vette,383,miniram,ZF6,4.10's..best ET 11.81@117.00 60' 1.65
http://geocities.com/bowtie8

 

the capmap software is just over $200
and i gto DFI on my car and i think its great.
i wish i had a fel-pro system but the 1 i want is over $3300